2017 (Back to the top)

163. J. G. Huang, H. Cai, Y. D. Gu, L. K. Chin, J. H. Wu, T. N. Chen, Z. C. Yang, Y. L. Hao, and A. Q. Liu, "Torsional frequency mixing and sensing in optomechanical resonators," Applied Physics Letters, Vol. 111, 111102, 2017.

162. Y. Z. Shi, S. Xiong, L. K. Chin, Y. Yang, J. B. Zhang, W. Ser, J. H. Wu, T. N. Chen, Z. C. Yang, Y. L. Hao, B. Liedberg, P. H. Yap, Y. Zhang and A. Q. Liu, "High-resolution and multi-range particle separation by microscopic vibration in an optofluidic chip," Lab on a Chip, Vol. 17, pp. 2443-2450, 2017.

161. Q. H. Song, W. M. Zhu, P. C. Wu, W. Zhang, Q. Y. S. Wu, J. H. Teng, Z. X. Shen, P. H. J. Chong, Q. X. Liang, Z. C. Yang, D. P. Tsai, T. Bourouina, Y. Leprince-Wang and A. Q. Liu, "Liquid-metal-based metasurface for terahertz absorption material, frequency-agile and wide angle," APL Materials, Vol. 5, 066103, 2017.

160. L. B. Yan, W. M. Zhu, P. C. Wu, H. Cai, Y. D. Gu, L. K. Chin, Z. X. Shen, P. H. J. Chong, Z. C. Yang, W. Ser, D. P. Tsai and A. Q. Liu, "Adaptable metasurface for dynamic anomalous reflection," Applied Physics Letters, Vol. 110, 201904, 2017.

159. Q. H. Song, W. Zhang, P. C. Wu, W. M. Zhu, Z. X. Shen, P. H. J. Chong, Q. X. Liang, Z. C. Yang, Y. L. Hao, H. Cai, H. F. Zhou, Y. D. Gu, G. Q. Lo, D. P. Tsai, T. Bourouina, Y. Leprince-Wang, and A. Q. Liu, "Water-Resonator-Based Metasurface: An Ultrabroadband and Near-Unity Absorption," Advanced Optical Materials, Vol. 5, 1601103, 2017.

158. P. C. Wu, W. M. Zhu, Z. X. Shen, P. H. J. Chong, W. Ser, D. P. Tsai and A. Q. Liu, "Broadband Wide-Angle Multifunctional Polarization Converter via Liquid-Metal-Based Metasurface," Advanced Optical Materials, Vol. 5, 1600938, 2017.

2016 (Back to the top)

157. H. T. Zhao, Y. Yang, L. K. Chin, H. F. Chen, W. M. Zhu, J. B. Zhang, P. H. Yap, B. Liedberg, K. Wang, G. Wang, W. Ser and A. Q. Liu, "Optofluidic Lens with Low Spherical and Low Field Curvature Aberrations," Lab on a Chip, 16, 1617 - 1624, 2016.

156. M. Ren, H. Cai, L.K. Chin, J.G. Huang, Y.D. Gu, K. Radhakrishnan, W. Ser and A.Q. Liu, "An opto-mechanical coupled-ring reflector driven by optical force for lasing wavelength control," Applied Physics Letters, Vol. 108, 081106, 2016.

155. P. Y. Liu, L. K. Chin, W. Ser, H. F. Chen, C.-M. Hsieh, C.-H. Lee, K.-B. Sung, T. C. Ayi, P. H. Yap, B. Liedberg, K. Wang, T. Bourouina and Y. Leprince-Wang, "Cell refractive index for cell biology and disease diagnosis: past, present and future," Lab on a Chip, Vol. 16, Issue 4, pp. 634-644, 2016.

2015 (Back to the top)

154. B. Dong, H. Cai, L. K. Chin, J. G. Huang, Z. C. Yang, Y. D. Gu, G. I. Ng, W. Ser, D. L. Kwong, and A. Q. Liu, "A silicon-nanowire memory driven by optical gradient force induced bistability," Applied Physics Letters, Vol. 107, 261111, 2015.

153. M. Ren, H. Cai, L. K. Chin, K. Radhakrishnan, Y. D. Gu, G. Q. Lo, D. L. Kwong and A. Q. Liu, "A coupled-ring reflector in an external cavity tunable laser," Optica, Vol. 2, No. 11, pp. 940-943, 2015.

152. W. M. Zhu, Q. H. Song, L. B. Yan, W. Zhang, P. C.Wu, L. K. Chin, H. Cai, D. P. Tsai, Z. X. Shen, T. W. Deng, S. K. Ting, Y. D. Gu, G. Q. Lo, D. L. Kwong, Z. C. Yang, R. Huang, A. Q. Liu and N. Zheludev, "A flat lens with tunable phase gradient by using random access reconfigurable metamaterial," Advanced Materials, Vol. 27, pp. 4739-4743, 2015.

151. Z. G. Li, S. Xiong, L. K. Chin, K. Ando, J. B. Zhang and A. Q. Liu, "Water's tensile strength measured using an optofluidic chip," Lab on a chip, Vol. 15, pp. 2158-2161, 2015.

150. P. C. Wu, W. L. Hsu, W. T. Chen, Y. W. Huang, C. Y. Liao, A. Q. Liu, G. Sun, and D. P. Tsai, "Plasmon coupling in vertical split-ring resonator metamolecules," Scientific Reports, Vol. 5, 9726, 2015.

149. S. Xiong, L. K. Chin, K. Ando, T. Tandiono, A. Q. Liu and C. D. Ohl, "Droplet generation via a single bubble transformation in a nanofluidic channel," Lab on a Chip, Vol. 15, pp. 1451-1457, 2015.

2014 (Back to the top)

148. S. Xiong, L. K. Chin, T. Tandiono, A. Q. Liu and C. D. Ohl, "Microjet-initiated nano-gaseous layer pinch-off from the surface of a bubble and subsequent breakup," Israel Journal of Chemistry, Vol 54, pp. 1602-1606, 2014.

147. P. Y. Liu, L. K. Chin, W. Ser, T. C. Ayi, P. H. Yap, T. Bourouina and Y. Leprince-Wang, "An optofluidic imaging system to measure the biophysical signature of single waterborne bacteria," Lab on a Chip, Vol. 14, Issue 21, pp. 4237-4243, 2014.

146. J. Q. Yu, W. Huang, L. K. Chin, L. Lei, Z. P. Lin, W. Ser, H. Chen, T. C. Ayi, P. H. Yap, C. H. Chen and A. Q. Liu, "Droplet Optofluidic Imaging for λ-bacteriophage Detection via Co-culture with Host Cell Escherichia Coli," Lab on a Chip, Vol. 14, Issue 18, pp. 3519-3524, 2014.

145. W. Zhang, W. M. Zhu, E. E. M. Chia, Z. X. Shen, H. Cai, Y. D. Gu, W. Ser, and A. Q. Liu, "A Pseudo-planar Metasurface for a Polarization Rotator," Optics Express, Vol. 22, Issue 9, pp. 10446-10454, 2014.

144. W. T. Chen, K. Yang, C. M. Wang, Y. W. Huang, G. Sun, I. Chiang, C. Y. Liao, W. L. Hsu, H. T. Lin, S. Sun, L. Zhou, A. Q. Liu, and D. P. Tsai, "High-efficiency broadband meta-hologram with polarization-controlled dual images," Nano Letters, Vol 14, pp. 225–230, 2014.

2013 (Back to the top)

143. B. Dong, H. Cai, G. I. Ng, P. Kropelnicki, J. M. Tsai, A. B. Randles, M. Tang, Y. D. Gu, Z. G. Suo and A. Q. Liu, "A nanoelectromechanical systems actuator driven and controlled by Q-factor attenuation of ring resonator," Applied Physics Letters, Vol 103, 181105, 2013.

142. W. H. Chong, L. K. Chin, R. L. S. Tan, H. Wang, A. Q. Liu and H. Chen, "Stirring in suspension: nanometer-sized magnetic stir bars," Angewandte Chemie International Edition, Vol 52, pp. 8570–8573, 2013.

141. J. Q. Yu, X. F. Liu, L. K. Chin, A. Q. Liu and K. Q. Luo, "Study of endothelial cell apoptosis using fluorescence resonance energy transfer (FRET) biosensor cell line with hemodynamic microfluidic chip system," Lab on a Chip, Vol 13, pp. 2693-2700, 2013. [Supplementary Information]

140. M. Ren, J. Huang, H. Cai, J. M. Tsai, J. Zhou, Z. Liu, Z. Suo, and A. Q. Liu, "Nano-optomechanical actuator and pull-back instability," ACS Nano, Vol 7, pp.1676–1681, 2013.

139. Z. G. Li, A. Q. Liu, E. Klaseboer, J. B. Zhang and C. D. Ohl, "Single cell membrane poration by bubble-induced microjets in a microfluidic chip," Lab on a Chip, Vol 13, pp.1144-1150, 2013. [Supplementary Information][Video]

138. H. Cai, B. Dong, J. F. Tao, L. Ding, J. M. Tsai, G. Q. Lo, A. Q. Liu and D. L. Kwong, "A nanoelectromechanical systems optical switch driven by optical gradient force," Applied Physics Letters, Vol 102, 023103, 2013.

137. W. Zhang, W. M. Zhu, H. Cai, M. L. J. Tsai, G. Q. Lo, D. P. Tsai, H. Tanoto, J. H. Teng, X. H. Zhang, D. L. Kwong and A. Q. Liu, "Resonance switchable metamaterials using MEMS fabrications," IEEE Journal of Selected Topics in Quantum Electronics, Vol 19, 4700306, 2013.

2012 (Back to the top)

136. W. M. Zhu, A. Q. Liu, T. Bourouina, D. P. Tsai, J. H. Teng, X. H. Zhang, G. Q. Lo, D. L. Kwong and N. I. Zheludev, "Microelectromechanical Maltese-cross metamaterial with tunable terahertz anisotropy," Nature Communications, Vol 3, 1274, 2012. [Supplementary Information]

135. Y. Yang, A. Q. Liu, L. K. Chin, X. M. Zhang, D. P. Tsai, C. L. Lin, C. Lu, G. P. Wang and N. I. Zheludev, "Optofluidic waveguide as a transformation optics device for lightwave bending and manipulation," Nature Communications, Vol 3, 651, 2012. [Supplementary Information ]

[Video]

134. K. Ando, A. Q. Liu and C. D. Ohl, "Homogeneous nucleation in water in microfluidic channels," Physical Review Letters, Vol 109, 044501, 2012. [Supplementary Information]

133. Y. Fu, L. K. Chin, T. Bourouina, A. Q. Liu and A. M. J. VanDongen, "Nuclear deformation during breast cancer cell transmigration," Lab on a Chip, Vol 12, Issue 19, pp.3774–3778, 2012.

132. Y. Yang, L. K. Chin, J. M. Tsai, D. P. Tsai, N. Zheludev and A. Q. Liu, "Transformation optofluidics for large-angle light bending and tuning," Lab on a Chip, Vol 12, Issue 19, pp.3785–3790, 2012.

131. Y. F. Yu, M. Ren, J. B. Zhang, T. Bourouina, C. S. Tan, J. M. Tsai and A. Q. Liu, "Force-induced optical nonlinearity and Kerr-like coefficient in opto-mechanical ring resonators," Optics Express, Vol 20, pp.18005-18015, 2012.

130. X. Zhao, J. M. Tsai, H. Cai, X. M. Ji, J. Zhou, M. H. Bao, Y. P. Huang, D. L. Kwong and A. Q. Liu, "A nano-opto-mechanical pressure sensor via ring resonator," Optics Express, Vol 20, pp.8535-8542, 2012.

129. W. Zhang, W. M. Zhu , E. P. Li , H. Tanoto , Q. Y. Wu , J. H. Teng , X. H. Zhang , J. M. Tsai , G. Q. Lo , D. L. Kwong and A. Q. Liu, "Micromachined Switchable Metamaterial with Dual Resonance," Applied Physics Letters, Vol 101, 151902 2012.

128. Y. F. Yu , J. B. Zhang , T. Bourouina and A. Q. Liu, "Optical-force-induced bistability in nanomachined ring resonator systems," Applied Physics Letters, Vol 100, 093108, 2012.

127. J. F. Tao, J. Wu, H. Cai, Q. X. Zhang, J. M. Tsai, J. T. Lin and A. Q. Liu, "A nanomachined optical logic gate driven by gradient optical force," Applied Physics Letters, Vol 100, 113104, 2012.

126. H. Cai, K. J. Xu, A. Q. Liu, Q. Fang, M. B. Yu, G. Q. Lo and D. L. Kwong, "Nano-opto-mechanical actuator driven by gradient optical force," Applied Physics Letters, Vol 100, 013108, 2012.

125. A. Q. Liu, W. M. Zhu, D. P. Tsai and N. I. Zheludev, "Micromachined tunable metamaterials: a review," Journal of Optics, Vol 14, 114009, 2012.

2011 (Back to the top)

124. W. M. Zhu, A. Q. Liu, W. Zhang, J. F. Tao, T. Bourouina, J. H. Teng, X. H. Zhang, Q. Y. Wu, H. Tanoto, H. C. Guo, G. Q. Lo and D. L. Kwong, "Polarization dependent state to polarization independent state change in THz metamaterials," Applied Physics Letters, Vol 99, 221102, 2011.

123. Y. H. Fu, A. Q. Liu, W. M. Zhu, X. M. Zhang, D. P. Tsai, J. B. Zhang, T. Mei, J. F. Tao, H. C. Guo, X. H. Zhang, J. H. Teng, N. I. Zheludev, G. Q. Lo, and D. L. Kwong, "A micromachined reconfigurable metamaterial via reconfiguration of asymmetric split-ring resonators," Advanced Functional Materials, Vol 21, Issue 18, pp.3589–3594, 2011.

122. Y. Yang, A. Q. Liu, L. Lei, L. K. Chin, C. D. Ohl, Q. J. Wang, and H. S. Yoon , "A tunable 3D optofluidic waveguide dye laser via two centrifugal Dean flow streams," Lab on a Chip, Vol 11, Issue 18, pp.3182-3187, 2011.

121. L. K. Chin, J. Q. Yu, Y. Fu, T. Yu, A. Q. Liu and K. Q. Luo , "Production of reactive oxygen species in endothelial cells under different pulsatile shear stresses and glucose concentrations," Lab on a Chip, Vol 11, Issue 11, pp.1856-1863, 2011.

120. S. Xiong, A. Q. Liu, L. K. Chin and Y. Yang, "An optofluidic prism tuned by two laminar flows," Lab on a Chip, Vol 11, Issue 11, pp.1864-1869, 2011. [Supplementary Information]

119. Z. G. Li, K. Ando, J. Q. Yu, A. Q. Liu, J. B. Zhang and C. D. Ohl, "Fast on-demand droplet fusion using transient cavitation bubbles," Lab on a Chip, Vol 11, Issue 11, pp 1879-1885, 2011. [Video1][Video2]

118. W. M. Zhu, A. Q. Liu, X. M. Zhang, D. P. Tsai, T. Bourouina, J. H. Teng, X. H. Zhang, H. C. Guo, H. Tanoto, T. Mei, G. Q. Lo and D. L. Kwong, "Switchable Magnetic Metamaterials Using Micromachining Processes," Advanced Materials, Vol 23, Issue 15, 2011

2010 (Back to the top)

117. Z. G. Li, Y. Yang, X. M. Zhang, A. Q. Liu, J. B. Zhang, L. Cheng, and Z. H. Li, "Tunable visual color filter using microfluidic grating," Biomicrofluidics, Vol. 4, Issue 4, 2010

116. Y. F. Yu, Y. H. Fu, X. M. Zhang, A. Q. Liu, T. Bourouina, T. Mei, Z. X. Shen, and D. P. Tsai, "Pure angular momentum generator using a ring resonator," Optics Express, Vol. 18, Issue 21, 2010

115. H. Cai, X. M. Zhang, A. Q. Liu, B. Liu, M. B. Yu, G. Q. Lo and D. L. Kwong, "Discretely tunable micromachined injection-locked lasers," Journal of Micromechanics and Microengineering, Vol. 20, No. 8, 21651-21662, 2010.

114. J. Q. Yu, Y. Yang, A. Q. Liu, L. K. Chin and X. M. Zhang, "Microfluidic droplet grating for reconfigurable optical diffraction," Optics Letters, Vol. 35, No. 11 , 2010.

113. L. K. Chin, A. Q. Liu, C. S. Lim, C. L. Lin, T. C. Ayi and P. H. Yap, "An optofluidic volume refractometer using Fabry–Pérot resonator with tunable liquid microlenses," Biomicrofluidics, 4, 024107,2010.

112. L. K. Chin, A. Q. Liu, Y. C. Soh, C. S. Lim and C. L. Lin, "A reconfigurable optofluidic Michelson interferometer using tunable droplet grating," Lab on a Chip, Vol.10, 1072 - 1078, 2010.

2009 (Back to the top)

111. E.H. Khoo, A.Q. Liu, X.M. Zhang, E.P. Li, J. Li, D. Pinjala and B.S. Luk'yanchuk, "Exact step-coupling theory for mode-coupling behavior in geometrical variation photonic crystal waveguides," Physical Review B, Vol 80, 035101, 2009.

2008 (Back to the top)

110. H. Cai, B. Liu, X. M. Zhang, A. Q. Liu, T. Bourouina and Q. X. Zhang, " A micromachined tunable coupled-cavity laser for wide tuning range and high spectral purity ," Optics Express, Vol 16, No. 21, pp. 16670-16679, 2008.

109. L. K. Chin, A. Q. Liu, C. S. Lim, and Y.C Soh, " An On-chip Liquid Tunable Grating using Multiphase Droplet Microfluidics", Applied Physics Letters, Vol 93, 164107, 2008.

108. X. C. Li, J. Wu, A. Q. Liu, Z. G. Li, Y. C. Seow, H. J. Huang, K. Xu and J. T. Lin, "A liquid waveguide based evanescent wave sensor integrated onto a microfluidic chip ," Applied Physics Letters, Vol 93, 193901, 2008.

107. S. K. Chen, M. Y. Wang and A. Q. Liu, "Shape feature control in structural topology optimization ," Computer-Aided Design, Vol. 40, pp. 951-962, 2008.

106. Y. C. Seow, A. Q. Liu, L. K. Chin, X. C. Li, H. J. Huang, T. H. Cheng and X. Q. Zhou, "Different curvature of tunable liquid microlens via the control of laminar flow rate," Applied Physics Letters,Vol. 93, 084101, 2008.

105. W. M. Zhu, X. M. Zhang, A. Q. Liu, H. Cai, J. Tamil, And T. Buorouina, "A micromachined optical double well for thermo-optic switching via resonant tunneling effect,"Applied Physics Letters,Vol. 92, No.25, 251101, 2008.

104. Selin H. G. Teo, A. Q. Liu, J. B. Zhang, M. H. Hong, J. Singh, M. B. Yu, N. Singh and G. Q. Lo, "Photonic bandgap crystal resonator enhanced, laser controlled modulations of optical interconnects for photonic integrated circuits," Optics Express ,Vol. 16, pp. 7842-7848, 2008.

103. L . A. G Lin, Y. F. Yu, A. Q. Liu, C. S. Zhang, C. S. Lim, S. H. Ng, P. H. Yap and H. J. Gao, " Cell Compressibility Studies Utilizing Non-Contact Hydrostatic Pressure Measurements on Single Living Cells in a Microchamber ," Applied Physics Letters, Vol. 92, No. 233901, 2008.

102. A. Q. Liu, H. J. Huang, L. K. Chin, Y. F. YU, and X. C. Li (Invited paper), "A Review - Label-Free Detection with Micro-Optical-Fluidic-System (MOFS)," Journal of Analytical and Bioanalytical Chemistry, Vol. 391, No. 7,pp 2443-2452, 2008.

101. M. Tang , A. Q. Liu, and J.Oberhammer, "A silicon-on-Glass Single-Pole Double-Throw (SPDT) Switching Circuit Integrated With Silicon-Core Metal-Coated Transmission Line," Journal of Micromechanics and Microengineering, Vol 18, No. 095024, 2008.

100. H. Cai, A. Q. Liu, X. M. Zhang , J. Tamil, D. Y. Tang , J. Wu and Q. X. Zhang, "Tunable dual-wavelength laser constructed by silicon micromachining," Applied Physics Letters, Vol. 92, No.05, 051113, 2008.

99. H. Cai, A. Q. Liu, X. M. Zhang , J. Tamil, Q. X. Zhang, D. Y. Tang, C. Lu, "A Miniature Tunable Coupled-Cavity Laser Constructed by Micromachining Technology," Applied Physics Letters, Vol. 92, No.03, 031105, 2008.

98. X. M. Zhang, Q. W. Zhao, A. Q. Liu, J. Zhang, J. H. Lau and C. H. Kam, "Asymmetric tuning schemes of MEMS dual-shutter VOA," Journal of Lightwave Technology, Vol. 26, no. 5, pp. 569-579,2008.

97. A. Q. Liu, E. H. Khoo, T. H. Cheng, J. Li and D. Pinjala, "A frequent-selective circulator via mode coupling between surface waveguide and resonators," Applied Physics Letters, Vol. 92, No.02, 021119, 2008.

2007 (Back to the top)

96. J. Oberhammer, A. Q. Liu, and G. Stemme, "Time-efficient quasi-static algorithm for simulation of complex single-sided clamped electrostatic actuators," IEEE Journal of Microelectromechanical Systems, Vol. 16, no. 2, pp. 373-382, 2007.

95. J. H. Wu, A. Q. Liu, and H. L. Chen, "Exact solutions for free-vibration analysis of rectangular plates using Bessel functions," IEEE/ASME Journal of Applied Mechenics-Transactions , Vol. 74, no. 6, pp. 1247-1251, 2007.

94. L. K. Chin, A. Q. Liu, X. M. Zhang, C. S. Lim, J. H. Ng, J. Z. Hao and S. Takahashi, "Differential single living cell refractometry using grating resonant cavity with optical trap," Applied Physics Letters, Vol. 91, No.2 4 , 2 43901 , 2007.

93. W. M. Zhu, X. M. Zhang, T. Zhong, A. Q. Liu and M. Yu, "Micromachined optical well structure for thermo-optic switching," Applied Physics Letters, Vol. 91, No.26,261106, 2007.

92. A. Q. Liu, A. B. Yu, M. F. Karim and M. Tang (invited review paper), "RF MEMS switches and integrated switching circuit," Journal of Semiconductor Technology and Science, Special issue on NANO/Microsystems Technology, Vol. 7, No.3, September, 2007.

91. E. H. Khoo, A. Q. Liu, T. H. Cheng, J. Li and D. Pinjala, "Light focusing via Rowland concave surface of photonic crystal", Applied Physics Letters, Vol. 91, No.22, 221105, 2007.

90. Z. G. Wu, A. Q. Liu, and Klas Hjort, "Microfluidic continuous particle-cell separation via electroosmotic-flow-tuned hydrodynamic spreading," Journal of Micromechanics and Microengineering , Vol. 17 pp. 1992-1999 2007.

89. E. H. Khoo, T. H. Cheng, A. Q. Liu and J. Li and D. Pinjala,^{ "}Transmitting light efficiently on photonic crystal surface waveguide bend", Applied Physics Letters, Vol. 91, No.17, 171109, 2007.

88. W. Z. Song, A. Q. Liu, S. Swaminathan, C. S. Lim, P. H. Yap, and T. C. Ayi, "Determination of single living cell’s drywater mass using optofluidic chip", Applied Physics Letters, Vol. 91, No.22, 223902, 2007.

87. Selin H. G. Teo, A. Q. Liu, J. Singh, M. B. Yu and G.Q. Lo, "Rod type photonic crystal optical line defect waveguides with optical modulations," A pplied Physics A-Material Science&Processing, Vol. 89, pp. 417-422, 2007.

86. A. B. Yu, A. Q. Liu, J. Oberhammer, Q. X. Zhang and H. M. Hosseini, "Characterization and optimization of dry releasing for the fabrication of RF MEMS capacitive switches," Journal of Micromechanics and Microengineering , Vol. 17 pp. 2024-2030 2007.

85. X. C. Li, A. Q. Liu, J. Wu, K. Xu and J.T. Lin, "A side-coupled photonic crystal filter with sidelobe suppression," Applied Physics A-Material Science&Processing, Vol. 89, pp. 327-332, 2007.

84. M. Tang, A. Q. Liu, A. Argawal and M. H. Habib, "A single-mask substrate transfer technique for the fabrication of high aspect ratio micromachined structure," Journal of Micromechanics and Microengineering , Vol. 17, pp. 1575-1582, 2007.

83. M. F. Karim, A. Q. Liu, A. Alphones and A. B. Yu, "A reconfigurable micromachined switching filter using periodic structures," IEEE Transaction on Microwave Theory and Technique, Vol. 55 , No 6, pp. 1154-1162, 2007.

82. X. M. Zhang, A. Q. Liu, C. Lu and D. Y. Tang, "A real pivot structure for MEMS tunable lasers," IEEE Journal of Microelectromechanical Systems, Vol. 16, no. 2, pp. 269-278, 2007.

81. J. H. Wu, A. Q. Liu, L. K. Ang, T. H. Cheng, K. Xu, J. Wu, and J. T. Lin , "Complex photonic band diagrams for finite-size photonic crystals with arbitrary defects," Journal Of Applied Physics Vol. 101, 053101, 2007.

80. A. Q. Liu, X. M. Zhang, H. Cai, A. B. Yu and C. Lu, "Retro-axial VOA using parabolic mirror pair", IEEE Photonics Technology Letters, Vol. 19, no. 9, pp. 692-694, 2007.

79. T. Zhong, X. M. Zhang, A. Q. Liu, J. Li, C. Lu, And D. Y. Tang, "Thermal-optic switch by total-internal reflection of micromachined silicon prism," IEEE Journal of Selected Topics in Quantum Electronics, Vol. 12, no. 2, pp. 348-258, 2007.

78. M. F. Karim, A. Q. Liu, A. B. Yu and A. Alphones, "Micromachined tunable filter using fractal electromagnetic bandgap (EBG) structures," Sensors and Actuators A 133, pp. 355-362,2007.

77. Y. Sun, C. S. Lim, A. Q. Liu, T.C. Ayi, P. H. Yap , "Design, simulation and experiment of electroosmotic microfluidic chip for cell sorting," Sensors and Actuators A Vol. 133, pp. 340-348, 2007.

76. Selin H. G. Teo , A. Q. Liu, J. Singh , M. B. Yu , "Hole-type 2-dimensional photonic crystal fabricated in silicon on insulator wafers," Sensors and Actuators A Vol. 133, pp. 388-394, 2007.

75. X. J. Liang, A. Q. Liu, C. S. Lim, T. C. Ayi, P. H. Yap, "Determining refractive index of single living cell using integrated microchip," Sensors and Actuators A Vol. 133, pp. 349-354, 2007.

74. A. Q. Liu, X. M. Zhang, "A review of MEMS external-cavity tunable lasers," Journal of Micromechanics and Microengineering, Vol.17, pp. R1-R13, 2007.

2006 (Back to the top)

73. J. H. Wu, T. H. Cheng, A. Q. Liu,and Y. X. W ang, " Modulational Transparency and Femtosecond Pulse Train in Bragg Reflectors with Time-Varying Dielectric Constant," Applied Physics Letters Vol. 89, No.26, 263103, 2006.

72. W. Z. Song, X. M. Zhang, A. Q. Liu, C. S. Lim, P. H. Yap and Habib Mir M.Hosseini," Refractive index measurement of single living cells using on-chip Fabry-Pérot cavity," Applied Physics Letters, Vol. 89, no. 20, 203901, 2006.

71. J. Oberhammer, M. Tang, A. Q. Liu and G. Stemme, "Mechanically tri-stable, true single-pole-double-throw(SPDT) switches," Journal of Micromechanics and Microengineering, Vol. 16, pp. 1-8,2006.

70. A . Q. Liu , J. Li, Z. S. Liu, and C. Lu, "Self-latched micromachined mechanism with large displacement ratio," Journal of Microelectromechanical Systems, Vol 15, no. 6, 2006.

69. J. H. Wu, A. Q. Liu, and L. K. Ang," Bandgap optimization of finite photonic structures using apodization method,"Journal of Applied Physics, Vol. 100, 084309, 2006.

68. Selin H. G. Teo, A. Q. Liu, M. B. Yu, and J. Singh, " Synthesized processing techniques for monolithic iIntegration of nanometers-scale hole type photonic bandgap crystal with micrometers-scale microelectromechanical structures ," Journal of Vacuum Science & Technology B, Vol. 24, no. 4, pp. 1689-1701, 2006.

67. Selin H. G. Teo, A. Q. Liu, J. B. Zhang, and M. H. Hong, "Induced free carriers modulation of photonic crystal optical intersection via localized optical absorption effect," Applied Physics Letters, Vol. 89, 091910, 2006.

66. E. H. Khoo, A. Q. Liu, J. H. Wu, J. Li and D. Pinjala, "Modified step-theory for investigating mode coupling mechanism in photonic crystal waveguide taper," Optics Express, Vol. 14, no. 13, 2006.

65. A. B. Yu, A. Q. Liu and Q. X. Zhang and H. M. Hosseini, "Effects of surface roughness on electromagnetic characteristics of capacitive switches," Journal of Micromechanics and Microengineering, Vol. 16, pp. 2157-2166, 2006.

64. B. Borovic , A. Q. Liu, D. Popa, H. Cai and F. L. Lewis, "Light-Intensity-Feedback-Waveform Generator Based on MEMS Variable Optical Attenuator," IEEE Transactions on Industrial Electronics, Vol. 55, no.1, pp.417-426, Jan.2008.

63. J. H. Wu, A. Q. Liu, and H. H. Li, "Investigation of resonant modes in thin microcavities using electromagnetic theory," Optics Letters, Vol. 31, pp. 2438-2440, 2006.

62. J. Li, A. Q. Liu, X. M. Zhang and T. Zhong, "Light switching via thermo-optic effect of micromachined silicon prism," Applied Physics Letter , Vol. 88, no. 24, paper no. 243501, 12 June 2006.

61. B. Borovic , F. L. Lewis, A. Q. Liu, E. S. Kolesar, and D. Popa, "__Lateral instability problem in electrostatic comb-drive actuators: modeling and feedback control__," Journal of Micromechanics and Microengineering, Vol. 16, no. 7, pp. 1233-1241, 2006

60. J.-M. Huang, A. Q. Liu, Z. L. Deng, Q. X. Zhang, "__A modeling and analysis of spring-shaped torsion micromirrors for low-boltage applications__," International Journal of Mechanical Sciences, Vol. 48, pp. 650-661, 2006.

59. L. M. Zhao, D. Y. Tang and A. Q. Liu, "__Chaotic dynamics of a passivelymode-locked solution fiber ring laser__," Chaos, Vol. 16, no. 1, paper no. 13128-9, 2006.

58. S. P. Ng, D. Y. Tang, A. Q. Liu, L. J. Qin, X. L. Meng, "Short pulse passively Q-switched Nd:GdYVO4 laser using a GaAs mirror," Optics Communications , Vol. 259, no. 1, pp. 256-260, 2006.

57. Q. X. Zhang, A. B. Yu, L. H. Guo, R. Kumar, K. W. Teoh, A. Q. Liu, G. Q. Lo, and D. –L. Kwong, "RF MEMS switch integrated on printed circuit board with metallic membrane first sequence and transferring," IEEE Electron Device Letters, Vol. 27, no. 7, pp. 552-554, 2006.

56. Selin H. G. Teo, A. Q. Liu, M. B. Yu , and J. Singh, "__Fabrication & demonstration of square lattice two-dimensional rod-type photonic bandgap crystal optical intersections__," Photonics and Nanostructures - Fundamentals and Applications, Vol. 4, no. 2, pp. 103-115, 2006.

55. J. H. Wu and A. Q. Liu, "Exact solution of resonant modes in a rectangular resonator," Optics Letters, Vol. 31, no. 11, pp. 1720-1722, 2006.

54. J. H. Wu, A. Q. Liu, H L Chen, T N Chen, "Multiple scattering of a spherical acoustic wave from fluid spheres," Journal of Sound and Vibration, Vol. 290, no. 1, pp. 17-33, 2006.

53. J. Li, A. Q. Liu and Q. X. Zhang, "__Tolerance analysis for comb-drive actuator using DRIE fabrication__," Sensors and Actuators A Physical, Vol. 125, no. 2, pp. 494-503, 2006.

52. M. F. Karim, A. Q. Liu, A. Alphones and A. B. Yu, "__A tunable bandstop filter via the capacitance change of micromachined switches__," Journal of Micromechanics and Microengineering, Vol. 16, no. 4, pp. 851-861, 2006.

51. A. B. Yu, A. Q. Liu, Q. X. Zhang; A. Alphones; H.M. Hosseini, "Micromachined DC contact capacitive swith on low-resistivity silicon substrate," Sensors & Actuators Physics A, Vol. 127, no. 1, pp. 24-30, 2006

2005 (Back to the top)

50. E. Khoo, A. Liu, J. Wu, "__Nonuniform photonic crystal taper for high - efficiency mode coupling__," Optics Express, Vol. 13, no. 20, pp. 7748 - 7759, 2005.

49. A. Q. Liu , M. Tang, A. Agarwal, and A. Alphones, "__Low-loss lateral micromachined switches with frequencies from DC to 25 GHz__," Journal of Micromechanics and Microengineering, Vol. 15, pp. 157-167, 2005.

48. M. Tang , A. Q. Liu, and A. Agarwal, Z. S. Liu, and C. Lu, "A single-pole double-throw circuit using lateral metal-contact micromachined switches," Sensors & Actuators, Physics A, Vol. 121, pp. 187-196, 2005.

47. M. Tang , A. Q. Liu, A. Agarwal, and Q. X. Zhang, "High Isolation X-Band MEMS capacitive microswitches," Sensors & Actuators, Physics A, Vol. 120, pp. 241-248, 2005.

46. A. Q. Liu , W. Palei, M. Tang and A. Alphones, "__Microstrip lateral RF MEMS switch integrated with multi-step CPW transition__," Microwave and Optical Technology Letters, Vol. 44, no. 1, pp. 93-95, 2005.

45. W. Palei, A. Q. Liu, A. B. Yu, A. Alphones and Y.H. Lee, "__Optimization of design and fabrication for micromachined true time delay (TTD) phase shifters__," Sensors & Actuators, Physics A, Vol. 119, pp. 446-454, 2005.

44. A. B. Yu, A. Q. Liu, Q. X. Zhang, A. Alphones, L. Zhu and S. A. Peter, "__Improvement of isolation for RF MEMS capacitive shunt switch via membrane planarization__," Sensors & Actuators, Physics A*, *Vol. 119, pp. 206-213, 2005.

43. A. B. Yu, A. Q. Liu , Q. X. Zhang, "__Tunable MEMS LC tesonator with large tuning range__," Electronics Letter*,* Vol. 41, no. 15, pp. 855-857, 2005.

42. H. Cai, X. M. Zhang, C. Lu, A. Q. Liu and E. H. Khoo, "__Linear MEMS variable optical attentuator using reflective elliptical mirror__," IEEE Photonics Technology Letters, Vol. 17, no. 2, pp. 402-404, 2005.

41. X. M. Zhang, A. Q. Liu, C. Lu, and D. Y. Tang, "__Continuous wavelength tuning in micromachined Littrow external-cavity lasers__," IEEE Journal of Quantum Electronics, Vol. 41, no. 2, pp. 187-197, 2005.

40. A . Q. Liu , X. M. Zhang, C. Hong, D. Y. Tang and C. Lu, "__Miniaturized injection-locked laser using microelectromechanical systems technology__," Applied Physics Letters**,** Vol. 87, 101101, 2005.

39. M. F. Karim, A. Q. Liu, A. Alphones and X. J. Zhang, "__Low-pass filter using a hybrid EBG structure__," Microwave and Optical Technology Letters, Vol. 45, no. 2, pp. 95-98, 2005.

38. Q. X. Zhang, J. Li, A. Q. Liu, W. D. Zhong, "__Fabrication technique for MEMS vertical comb-drive actuators on a monolithic silicon substrate__," Journal of Vacuum Science & Technology B**, **Vol. 23, no.1, pp. 32, 2005.

37. J. Li, X. M. Zhang, A. Q. Liu, C. Lu and J. Z. Hao, "__A monolithically integrated photonic MEMS subsystem for optical network applications__," Optics Communications, Vol. 249, no. 4-6, pp. 579-586, 2005.

36. J H Wu, L K Ang, A Q Liu, H G Teo, and C Lu, "__Tunable high Q photonic bandgap Fabry-Perot resonator__," Journal of Optical Society of America B, Vol. 22, no. 8, pp. 1770-1777, 2005.

35. D. Y. Tang, L. M. Zhao, B. Zhao and A. Q. Liu, "Mechanism of multisoliton formation and soliton energy quantization in passively mode-locked fiber lasers," Physical Review A, Vol. 72, paper no. 043816, 2005.

34. B. Borovic, A. Q. Liu, D. Popa, H. Cai and F. L. Lewis , "Open-loop versus closed-loop control of MEM devices: choices and issues,” Journal of Micromechanics and Microengineering," Vol. 15, pp. 1917-1924, 2005.

33. H. G. Teo, A. Q. Liu, G. L. Sia, C. Lu, J. Singh, M. B. Yu, and H. Q. Sun, "__Deep UV lithography for pillar type nanophotonic crystal__," International Journal of Nanoscience, Vol. 4, pp. 559-556, 2005.

32. H. G. Teo, A. Q. Liu, G. L. Sia, C. Lu, J. Singh, and M. B. Yu, "Deep reactive ion etching for pillar type nanophotonic crystal," International Journal of Nanoscience, Vol. 4, pp. 567-574, 2005.

31. M. F. Karim, A. Q. Liu, A. B. Yu, A. Alphones, and X. J. Zhang, "CPW band-stop filter using unloaded and loaded EBG structures," IEE Proceedings on Microwave and Antenna Propagation, Vol. 152, no. 6, pp. 434-440, 2005.

2004 (Back to the top)

30. X. M. Zhang, A. Q. Liu, D. Y. Tang, and C. Lu, "__Discrete wavelength tunable laser using microelectromechanical systems technology__," Applied Physics Letters, Vol. 84, no. 3, pp. 329-331, 2004.

29. A. Q. Liu , X. M. Zhang, D. Y. Tang and C. Lu, "__Tunable laser using micromachined grating with continuous wavelength tuning__," Applied Physics Letters, Vol. 85, no. 17, pp. 3684-3686, 2004.

28. J. Li, A. Q. Liu, W. D. Zhong, Q. X. Zhang, C. Lu, "__MEMS switch based serial reconfigurable OADM__," Optics Communications, Vol. 230, no. 1-3, pp. 81-89, 2004.

27. H. G. Teo, A. Q. Liu, J. Singh, M. B. Yu and T. Bourouina, "__Design and simulation of MEMS optical switch using photonic bandgap crystal__," Microsystem Technologies, Vol 9, pp. 542-549, 2004.

26. H. G. Teo, A. Q. Liu, J. Singh and M. B. Yu, "__High resolution and aspect ratio 2D cubic lattice nano-rods photonic vandgap crystal__," Journal of Vacuum Science & Technology B**, **Vol. 22, pp. 2640, 2004.

25. W. Palei, A. Q. Liu, A. B. Yu and Y.H. Lee, "Optimization of design and fabrication for micromachined true time delay (TTD) phase shifters," Sensors & Actuators, Physics A, Vol. 119, no. 2, pp. 446-454, 2005.

24. W. Palei, A. Q. Liu, M. Tang, and A. Alphones, "__Single-pole-four- throw switch using high-aspect ratio lateral switches__," IEE Electronics Letters, Vol. 40, no. 18, pp. 1125-1126, 2004.

23. M. Tang , A. Q. Liu, A. Agarwal, and Q. X. Zhang, "__A new approach of lateral RF MEMS switch__," Analog Integrated Circuits and Signal Processing**,** Vol. 40, pp. 165-173, 2004.

22. F. Chollet, G. M. Hegde, X. M. Zhang, A. Q. Liu and A. Asundi, "__Vibration measurement with a micromachined mirror in a very-short external cavity laser__," Sensors & Actuators, Physics A, 116, no. 2, pp. 232-240, 2004.

21. J. M. Huang, A. Q. Liu, Z. L. Deng, Q. X. Zhang, Q. X. Zhang, J. Ahn and A. Asundi, "__An approach to the coupling effect between torsion and bending for electrostatic torsional micromirrors__," Sensors & Actuators, Physics A, Vol. 115, no.1, pp. 159-167, 2004.

2003 (Back to the top)

20. A. Q. Liu , X. M. Zhang, C. Lu, F. Wang,, Z. S. Liu, C. Lu, "__Optical and mechanical models for a variable optical attenuator using a micromirror drawbridge__," Journal of Micromechanical and Microengineering, Vol. 13, no. 3, pp. 400-411, 2003.

19. A. Q. Liu , X. M. Zhang, J. Li, "__Single-/multi-mode runable lasers using MEMS mirror and grating__," Sensors & Actuators, Physics A, Vol. 108, pp. 49-54, 2003.

18. J. Li, Q. X. Zhang, A. Q. Liu, J. Ahn, W. L. Goh , "__A new rechnique to prevent stiction and notching effect on silicon-on-insulator (SOI) microstructure__," Journal of Vacuum Science & Technology B, Vol. 21, no. 6, pp. 2530-2539, 2003.

17. J. -M. Huang, A. Q. Liu, J. Ahn, "__Mechanical characterization of micromachined capacitive switches: design consideration and experimental verification__," Sensors & Actuators, Physics A., Vol. 108, pp. 36-48, 2003.

16. X. J. Zhang, A. Alphones, A. Q. Liu, Y.C. Leong, C. H. Liang, T. H. Chio, "__A simplified hybrid calculation method for the surface fields and near fields of surface-current patches__," Microwave and Optical Technology Letters, Vol. 36, no. 6, pp. 471-474, 2003.

15. X. M. Zhang, A. Q. Liu, C. Lu, F. Wang, Z. S. Liu, "__Polysilicon micromachined fiber-optical attenuator for DWDM applications__," Sensors & Actuators, Physics A, Vol. 108, pp. 28–35,2003.

14. X. M. Zhang, A. Q. Liu, C. Lu, "__New near-field and far-field attenuation models for free-space variable optical attenuators (VOAs)__," IEEE The Journal of Lightwave Technology, Vol. 21, no. 12, pp. 3417-3426, 2003.

13. J. Li, Q. X. Zhang and A. Q. Liu, "__Advanced fibre optical switches using deep RIE (DRIE) fabrication__," Sensors & Actuators, Physics A, Vol. 102, pp. 286-295, 2003.

2002 (Back to the top)

12. X. M. Zhang, A. Q. Liu, C. Lu, D. Y. Tang, "MEMS variable optical attenuator using low driving voltage for DWDM systems ," IEE Electronics Letters, Vol. 38, no. 8, 2002, pp. 382-383.

11. A. Q. Liu , X. M. Zhang, V. M. Murukeshan, C. Lu and T. H. Cheng, "__Micromachined wavelength tunable laser with an extended feedback model__," IEEE Journal of Selected Topics on Quantum Electronics , Vol. 8, no. 1, pp. 73-79, 2002.

10. X. M. Zhang, A. Q. Liu, V. M. Murukeshan, and F. A. Chollet, "__Integrated micromachined tunable lasers for all-optical network applications__," Sensors & Actuators, Physics A, Vol. 97-98 pp. 54-60, 2002.

9. A. Q. Liu , X. M. Zhang, V. M. Murukeshan, Q. X. Zhang, Q. B. Zou, and S. Uppili, "__An optical switch using drawbridge micromirror for large array crossconnects__," Sensors & Actuators, Physics A, Vol. 97-98, pp. 227-238, 2002.

8. C. Quan, S. H. Wang, C. J. Tay, A. Q. Liu, and H. M. Shang, "__Deformation measurement of a micro-RF capacitive switch membrane using laser interferometry__," Optical Engineering, Vol. 42, no. 1, pp.92-97, 2003.

7. F. Wang, C. Lu, Z. S. Liu, J. Li, A. Q. Liu, and X. M. Zhang, "__Finite element simulation and theoretical analysis of fiber-optical switches__," Sensors & Actuators, Physics A, Vol. 96, pp. 167-178, 2002.

6. B. Zhao, A. Q. Liu, F. Chollet, J. M. Miao, H. M. Xie, and A. Asundi, "__Desiging and modelling of a grating-based displacement micro-transducer__," Nanotechnology, Vol. 12, pp. 308-315, 2002.

2001 (Back to the top)

5. A. Q. Liu , X. M. Zhang, and V. M. Murukeshan, "__A novel device level micromachined tunable laser using polysilicon 3D mirror__," IEEE Photonics Technology Letters, Vol. 13, no. 5, pp. 427-429, 2001.

4. X. M. Zhang, F. S. Chau, C. Quan, and A. Q. Liu, "__A study of the static characteristics of a torsional micromirror__," Sensors & Actuators, Physics A, Vol. 1-2, pp. 73-81, 2001.

3. Y. J. Ha, M. F. Li, and A. Q. LIU, "__A New CMOS buffer amplifier design used in low voltage MEMS interface circuits__," IEEE Journal of Analog Integrated Circuit and Signal Processing, Vol. 27, pp 7-17, 2001.

2. J. H. Huang, K. M. Liew, C. H. Wong, S. Rajendran, M. J. Tan and A. Q. LIU, "__Mechanical design and optimization of capacitive micromachined switch__," Sensors and Actuators, Physics A, Vol. 93, no. 3, pp. 273-285, 2001.

1. A. Q. Liu , B. Bao, F. Chollet, Q. Zou, A. Asundi, and H. Fujita, "Micro-opto-mechanical grating switches," Sensors & Actuators, Physics A, Vol. 86, pp.127-134, 2000.