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Publications

Materials characterization and study of Micro- and Nanoscale films and structure:

 

  1. Majid Kabiri Samani, Congxiang Lu, Kong Qinyu, Narjes Khosravian, George Chen, Chong Wei Tan, Per Rudquist, Beng Kang Tay and Johan Liu, “Thermal conductivity enhancement of carbon@ carbon nanotube arrays and bonded carbon nanotube network”, Material Research Express 6 (2019) 085616

  2. Majid Kabiri Samani, Xing Zhao Ding, Narjes Khosravian, Behnam Amin Ahmadi, YangYi, George Chen, Erik Neyts, AnnemieBogaerts, Beng Kang Tay "Thermal conductivity of titanium nitride/titanium aluminum nitride multilayer coatings deposited by lateral rotating cathode arc” Thin Solid Films (March 2015) Volume 578, pg 133-138

  3. N. Khosravian, M. K. Samani, G. C. Loh, G.C.K. Chen, D. Ballargeat, B. K. Tay, "Effects of A Grain Boundary Loop on the Thermal Conductivity of Graphene: A Molecular Dynamics Study" Computational Materials Science (June 2013) 79, 132-135

  4. M. K. Samani, X. Z. Ding, S, Amini, N. Khosravian, J.Y. Cheong, G. Chen, B. K. Tay, “Thermal conductivity of titanium aluminum silicon nitride coatings deposited by lateral rotating cathode arc”, Thin Solid Films 537 (2013) 108-112

  5. N. Khosravian, M.K. Samani, G.C. Loh, G.C.K. Chen, D. Baillargeat, and B.K. Tay, “Molecular dynamic simulation of diamond/silicon interfacial thermal conductance”, Journal of Applied Physics Vol. 113, 024907 (2013)

  6. M. K. Samani, N. Khosravian, G. C.K. Chen, M. Shakerzadeh and B.K.Tay“Thermal Conductivity of Individual Multiwalled Carbon Nanotube” International Journal of Thermal Science (2012), 62, 40-43

  7. Xing-Zhao Ding, M. K. Samani, George Chen "Thermal conductivity of PVD TiAlN films using pulsed photothermal reflectance technique" Applied Physics A –Materials Science & Processing, (2010) 101:573-577

  8. Jing Chen, Ting Sun, Haiyang Peng, Huatao Wang, Shufen Fan, Huey Hoon Hng, Jan Ma, Freddy Yin Chang Boey, Sean Li, Majid Kabiri Samani,George Chung Kit Chen, Xiaodong Chen, Tom Wu, Qingyu Yan, “Sb2Te3 Nanoparticles with Enhanced Seeback Coefficient and Low Thermal Conductivity” Chemistry of Materials, Vol. 22, 3086-3092, 2010

  9. M.K. Samani, George C.K. Chen , Xing Zhao Ding, X.T. Zeng, “Thermal Conductivity of CrAIN and TiAlN Coatings Deposited by Lateral Rotating Cathode Arc”, Key Engineering Materials Vols 447-448, pp 705-709, 2010.

  10. T.C. Au Yeung, M.X. Gu, Chang Q. Sun, George C.K. Chen, D.W.K. Wang, V. Nosik, “Impact of surface bond-order loss on phonon dispersion relations and thermal conductivity of cylindrical Si nanowires” Physical Review B, Vol.74, 155317 (2006)

  11. T.C. Au Yeung, T.C. Chiam, C.K. Chen, C.Q. Sun, W.Z. Shangguan, W.K. Wong and C.H. Kam, “Effect of surface bond-order loss on the electrical resistivity of metallic polycrystalline thin films” Physical Review B 72, 155417, October 2005

  12. George Chen, Ping Hui, Kantisara Pita, Peter Hing, and Lingbing Kong “Conductivity drop and crystallites redistribution in gold film”, Applied Physics A, Volume 80, Number 3, pp.659-665, Feb.2005

  13. Y. Zhao, G. Chen, S. Wang and S.F. Yoon, “Thermal characterization of GaAsN thin films by pulsed photothermal reflectance technique” International Journal of Nanoscience, (Special Issue on ICMAT 2003, Symposium N3: Nanoscale Imaging and Characterization of Materials) Vol. 3, No. 6, 781-787, 2004

  14. Y. Zhao, Chunlin Zhu, Sigen Wang, J.Z. Tian, D. J.Yang, C.K. Chen, Hao Cheng, and P. Hing, “Pulsed photothermal reflectance measurement of the thermal conductivity of sputtered aluminum nitride thin films” Journal of Applied Physics, Volume 96, Number 8, 4563-4568, 2004 External citation of this paper more than 100 times

  15. D.J.Yang, S.G.Wang, Qing Zhang, P.J. Sellin, G. Chen, "Thermal and electrical transport in multi-walled carbon nanotubes", Physics Letters A, 329 (2004) 207-213.

  16. Yimin Zhao, George Chen, Shanzhong Wang, Soon Fatt Yoon, “Thermal characterization of gallium arsenic nitride epilayer on gallium arsenide substrate using pulsed photothermal reflectance technique” Thin Solid Films, 450 (2004) 352-356

  17. Da Jiang Yang, Qing Zhang, George Chen, S.F. Yoon, J. Ahn, S.G. Wang, Q. Zhou, Q. Wang, and J.Q. Li, “Thermal Conductivity of multiwalled carbon nanotubes”, Physical Review B 66, 165440 (2002) External citation of this paper more than 500 times

  18. George Chen, Ping Hui and Shi Xu, ‘Thermal conduction in metallized tetrahedral amorphous carbon (ta-C) films on silicon’, Thin Solid Films 366 (2000) pg. 95-99.

  19. George Chen and Ping Hui, ‘Thermal conductivities of evaporated gold films on silicon and glass’, Applied Physics Letters, 74(20), (1999), pg. 2942-2944. External citation of this paper more than 100 times

  20. George Chen and Ping Hui, ‘Pulsed photothermal modeling of composite samples based on transmission-line theory of heat conduction’, Thin Solid Films 339 (1999) pg. 58-67
     

 

Biomedical Engineering:
 

  1. ​Biswas D, Chen G, Vasudevan S, “Photoacoustic spectral sensing technique for diagnosis of biological tissue coagulation: In-vitro study”, Diagnostics (2020) 10(3)

  2. Abhijeet Gorey, Srivathsan Vasudevan, M S Ansari, Priyanka Bhagat, Satish Phatak, Norman Sharma, George C K Chen, "Development of a compact laser-diode based frequency domain photoacoustic sensing system: application of human breast cancer diagnosis", Review of Scientific Instruments, 2019 Nov 1; 90(11):114101

  3. Gorey, Abhijeet; Deblina Biswas, Anshu Kumari, Sharad Gupta, Norman Sharma, George C.K. Chen, & Srivathsan Vasudevan, "Application of continuous wave photoacoustic sensing to red blood cell morphology" Laser in Medical Science, 34, 487-494 (2019) 

  4. Gorey, Abhijeet; Vasudevan, Srivathsan; Paul, M.; Abraham, Deepak; John, Reetu; Manipadam, Marie; Ansari, M; Chen, George, "Differentiation of malignant from benign thyroid nodules using photoacoustic spectral response: A preclinical study" Biomedical Physics & Engineering Express, Volume 5, Number 3 (2019) 035017

  5. Deblina Biswas, Abhijeet Gorey, George C.K Chen, Srivathsan Vasudevan, Nornam Sharma, Priyanka Bhagat, Satish Phatak, ”Empirical wavelet transform based photoacoustic spectral response technique for assessment of ex-vivo breast biopsy tissues” Biomedical Signal Processing and Control 51 (2019) 355-363

  6. Deblina Biswas1, Srivathsan Vasudevan, George Chen, Priyanka Bhagat, Norman Sharma, Satish Phatak, “Time-frequency based photoacoustic spectral response for differentiating human breast masses” Biomedical Physics & Engineering Express, Volume 3, Number 3 (April 24, 2017)

  7. Deblina Biswas, Anshu Kumar, George C.K. Chen, Srivathsan Vasudevan, Sharad Gupta, Supriya Shukla and Umesh K. Garg, “Quantitative differentiation of pneumonia from normal lungs: diagnostic assessment using photoacoustic spectral response”, Applied Spectroscopy (May 9, 2017)

  8. Deblina Biswas, Srivathsan Vasudevan, George CK Chen, and Norman Sharma, “Quantitative photoacoustic characterization of blood clot in blood: A mechanobiological assessment through spectral information”, Review of Scientific Instruments, Vol. 88, 024301 (2017) 

  9. Srivathsan Vasudevan, George C.K. Chen, Zhiping Lin, and Beng Koon Ng, “Quantitative photothermal phase imaging of red blood cells using digital holographic photothermal microscope” Applied Optics, Vol. 54, No. 14, pp 4478, May 10 2015

  10. Chi Lok Wong, George Chung Kit Chen, Xiaochao Li, Beng Koon Ng, Ping Shum, Peng Chen, Zhiping Lin, Chinlon Lin, Malini Olivo, “Colorimetric surface Plasmon resonance imaging (SPRI) biosensor array based on polarization orientation” Biosensors and Bioelectronics 47 (2013) 545-552

  11. Wong Chi Lok, George ChenBeng Koon Ng, Shuchi Agarwal, Zhiping Lin, Peng Chen and Ho Pui Ho,Multiplex Spectral Surface Plasmon Resonance Imaging (SPRI) Sensor based on Polarization Control Scheme” Optics Express,Vol. 19, No. 20 (September 2011) 18965-18978. This paper has been selected to publish in the Virtual Journal for Biomedical Optics, Vol. 6, Issue 10, November 2, 2011.

  12. Chi Lok Wong, George C. K. Chen, Beng Koon Ng, Shuchi Agarwal, Nolang Fanani, Zhiping Lin, Srivathsan Vasudevan and Peng Chen “Photothermal imaging for the imaging of nano-particles beyond the diffraction limit", Optical Engineering 50(7), 073201 (July 2011)

  13. Srivathsan Vasudevan, George Chung Kit Chen, Marta Andika, Shuchi Agarwal, Peng Chen and Malini Olivo, “Dynamic quantitative photothermal monitoring of cell death of individual human red blood cells upon glucose depletion” Journal of Biomedical Optics Vol. 15(5), 057001-1, September/October 2010, DOI:10.1117/1.3484260. Selected for the September 15, 2010 issue of Virtual Journal of Biological Physics Research

  14. Srivathsan Vasudevan, George Chung Kit Chen, Marta Andika, “Application of thermal lens response to monitor health status of Red Blood Cells: a quantitative study of the cell death process by extractingthermal diffusivity and size”, Applied Physics Letters, 96(11), 113703 (2010)

  15. Marta Andika, George Chung Kit Chen, Srivathsan Vasudevan, “Temporal pulse shape and probe beam size effect on pulsed photothermal lens spectroscopy of single particle”, Journal of the Optical Society of America B, 27(4), pp.796-805 (2010).

  16. Agarwal, Shuchi; Zhou, Xiaozhu; Ye, Feng; He, Qiyuan; Chen, George; Boey, Freddy; Zhang, Hua; Chen, Peng, “Interfacing Live Cells with Nanocarbon Substrates”, Langmuir 26(4), 2244-2247, February 2010 External citation of this paper more than 300 times 

  17. George C.K. Chen, Srivathsan Vasudevan, Teu Choon Kiat, “Photothermal techniques for materials characterization and live cells monitoring”, Advanced Material Research Vol. 74 (2009) pp 101-104, ICMAT 2009 & IUMRS-ICA 2009, Symposium L NEMS.MEMS Technology and Devices, Singapore, 2009 (Invited paper)

  18. Chi Lok Wong, George Chen, Teu Choon Kiat, Srivathsan Vasudevan, Pham Thuy Anh, Puhan Niladri Bihari, Marta Andika, Agarwal Shuchi, Lin Zhiping,and Chen Peng “Photothermal Imaging (PTI) system for the imaging of gold nano-particles and cellular organelles”, Advanced Materials Research Vol. 74 (2009) pp 45-48

  19. Srivathsan Vasuden, George Chen, “Integration of laser trapping for continuous and selective monitoring of photothermal response of a single microparticle” Optics Letters, Vol. 33 (23), 2779-2781, December 2008. Selected for the January 1, 2009 issue of Virtual Journal of Biological Physics Research, Vol.17 (1), January 2009.


 

Optical Wireless Communication papers:
 

  1. Damon W.K. Wong, George Chen. “Optical design and multipath analysis for broadband optical wireless in an aircraft passenger cabin application”, IEEE Transactions on Vehicular Technology, Vol. 57 (6), 3598-3606, November 2008.

  2. Damon Wong, George Chen, “Redistribution of the Zero Order by use of a Phase Checkerboard in Computer Generated Holograms”, Applied Optics, Vol. 47 (4), 602-610, January 2008.

  3. D.W.K. Wong and G. Chen, “Illumination design of a white light emitting diode wireless transmission system", Optical Engineering Vol. 46, Number 8, 085002, August 2007.

  4. Damon W.K. Wong, George Chen and Jianping Yao, “Optimization of Spot Pattern in Indoor Diffuse Optical Wireless Local Area Networks” Optics Express Vol. 13, No.8, 3000-3014, April 2005

  5. Mengtao Wen, Jianping Yao, Damon Wong and George C. K. Chen “Holographic diffuser design using a modified genetic algorithm”, Optical Engineering, Vol. 44, No. 8 (August 2005)

  6. Lijun Jiang, George Chen, Ye Yang, New Wei Lee, Allen Yeo and Hongga Li, “LED based wide-FOV transceiver for indoor optical infrared wireless communication”, Optical Engineering Volume 43 Number 4 (2004) p. 918-923.

  7. Jianping Yao, George C.K. Chen and Tuan-Kay Lim, "Holographic diffuser for diffuse infrared wireless home networking", Optical Engineering, Volume 42 Number 3 (2003) p.317-324

​

Presentations

Conferences:

  1. Optics in Life Sciences: OSA Optics and Photonics Congress April 4-6, 2011, Monterey, California, USA

  2. ICMAT 2009 & IUMRS-ICA 2009, Symposium L NEMS.MEMS Technology and Devices, Singapore, 1 July 2009 (Invited)

  3. 2nd International Symposium on Photonics Applications, ISPA2001, Singapore, 26-30 November 2001.

  4. TPPM’99, 1st International conference on Thermophysical Properties of Materials, 1999, Singapore.

  5. 18th Congress of the International Commission for Optics, San Francisco, CA 1999

  6. MRS Fall ’97, Boston, MA, 1997

 

Invited Seminars:

  1. Department of Electrical and Computer Engineering, University of British Columbia, September 14, 2011

  2. IEEE monthly seminar, BCIT, Burnaby, April 18, 2011

  3. Department of Materials Engineering, University of British Columbia, March 30, 2010

  4. Canada National Research Council (CNRC), Vancouver, BC, March 24, 2010

  5. Department of Electrical and Computer Engineering, University of British Columbia, April 30 2009

  6. Bioelectronics-Biophotonics workshop, Nanyang Technological University, February 12, 2009

  7. BioInformatics Institute, A*STAR, Singapore, November 6 2008

  8. Thales seminar, School of EEE, NTU, February 20 2008

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