Recent Selected Publications:

Glass materials and devices

S.Q. Man, E.Y.B. Pun, and P.S. Chung, ¡§Upconversion luminescence of Er3+ in alkali bismuth gallate glasses¡¨, Applied Physics Letters, vol.77, no.4, p.483¡V485, July 2000.

S.F. Wong, E.Y.B. Pun, and P.S. Chung, ¡§Er3+-Yb3+ codoped phosphate glass waveguide amplifier using Ag+-Li+ ion exchange,¡¨ IEEE Photonics Technology Letters vol. 14, p.80-82, January 2002. 

K.Liu and E.Y.B. Pun, ¡§Buried ion-exchanged glass waveguides using field-assisted annealing,¡¨ IEEE Photonics Technology Letters, vol.17, no.1, p.76-78, January 2005. 

K. Liu and E.Y.B. Pun, ¡§Modeling and experiments of packaged Er3+-Yb3+ codoped glass waveguide amplifiers,¡¨ Optics Communications, vol. 272, no.2, pp.413-420, May 2007. 

D.L. Yang, E.Y.B. Pun and H. Lin, ¡§Tm3+-doped ion-exchanged aluminum germanate glass waveguide for S-band amplification,¡¨ Applied Physics Letters, vol. 95, no.15, Art No 151106, October 2009. 

B. Zhou, H. Lin, D.L. Yang, and E.Y.B. Pun ¡§Emission of 1.38£gm and gain properties from Ho3+-doped low-phonon-energy gallate bismuth lead oxide glasses for fiber-optic amplifiers,¡¨ Optics Letters, vol. 35, no.2, p.211-213, January 2010. 

D.L. Yang, E.Y.B. Pun, N.Q. Wang, and H. Lin, ¡¨Radiation and gain behaviors in Tm3+ -doped aluminum germanate substrate glasses and thermal ion-exchanged waveguide¡¨ Journal of Optical Society of America B, vol. 27, no.5, p. 990-996, May 2010. 

B. Zhou, H. Lin and E.Y.B. Pun, ¡§Tm3+-doped tellurite glasses for fiber amplifiers in broadband optical communication at 1.20 £gm wavelength region,¡¨ Optics Express, vol. 18, no. 18, p.18805-18810, August 2010.  

D.L. Yang, H. Gong, E.Y.B. Pun, X. Zhao, and H. Lin, ¡§Rare-earth ions doped heavy metal germanium tellurite glasses for fiber lighting in minimally invasive surgery,¡¨ Optics Express, vol. 18, no.18, p. 18997-19008, August 2010. 

B. Zhou, H. Lin, B.J. Chen, and E.Y.B. Pun, ¡§Superbroadband near-infrared emission in Tm-Bi codoped sodium-germanium-gallate glasses,¡¨ Optics Express, vol.19, no.7, p.6522-6531, March 2011.



Polymer/DNA-biopolymer materials and devices

W.H. Wong, J. Zhou and E.Y.B. Pun, ¡§Low-loss polymeric optical waveguides using electron beam direct writing,¡¨ Applied Physics Letters, vol.78, p.2110-2112, April 2001. 

H.C. Tsoi, W.H. Wong and E.Y.B. Pun, ¡§Polymeric long-period waveguide gratings,¡¨ IEEE Photonics Technology Letters, vol. 15, no. 5. p.721-723, May 2003. 

W.H. Wong, E.Y.B. Pun, and K.S. Chan, ¡§Er3+-Yb3+ codoped polymeric optical waveguide amplifiers,¡¨ Applied Physics Letters, vol.84, no.5, p.176-178, January 2004. 

M.A. Reilly, B. Coleman, E.Y.B. Pun, R.V. Plenty, I.H. White, ¡§Optical gain at 650nm from a polymer waveguide with dye-doped cladding,¡¨ Applied Physics Letters, vol.87,no.23, Art.No. 231116, December 2005. 

C.S. Huang, E.Y.B. Pun, and W.C. Wang, ¡§Fabrication of an elastomeric rib waveguide Bragg grating filter,¡¨ Journal of Optical Society of America B-Optical Science, vol. 26, no.6, p.1256-1262, June 2009. 

J. Zhou, Z.Y. Wang, and E.Y.B. Pun, ¡§Compact polarization-insensitive biopolymer multimode interference waveguide splitter,¡¨ Applied Physics Letters, vol.95, no. 24, Art No 243301, December 2009. 

K.C. Tsang, C.Y. Wong, and E.Y.B. Pun, ¡§High gain optical amplification in Eu3+- doped polymer,¡¨ Optics Letters, vol. 35, no.4, p.520-522, February 2010. 

J. Zhou, Z.Y. Wang, X. Yang, C.Y. Wong and E.Y.B. Pun, ¡§Fabrication of low loss single mode channel waveguide with DNA-CTMA biopolymer by multi-step processing technology,¡¨ Optics Letters, vol. 35, no.10, p.1512-1514, May 2010. 

K.C. Tsang, C.Y. Wong and E.Y.B. Pun, ¡§Eu3+-doped planar optical polymer waveguide amplifiers,¡¨ IEEE Photonics Technology Letters, vol.22, no.14, p.1024-1026, July 2010.

K.O Tsang, C.Y. Wong, and E.Y.B. Pun, ¡§Optical amplification in Eu3+-doped DNA-based biopolymer,¡¨ IEEE Photonics Technology Letters, accepted for publication  



Lithium niobate materials and devices

D.L. Zhang, W.H. Wong and E.Y.B. Pun, ¡§Near-stoichiometric LiNbO3 optical waveguides fabricated using vapor transport equilibration and Ti co-diffusion¡¨, Applied Physics Letters, vol.85, no.15, p.3002¡V3004, October 2004.

D.L. Zhang and E.Y.B. Pun, ¡§1.5µm emission characteristics of Er3+ doped stoichiometric LiNbO3¡¨, Applied Physics Letters, vol. 86, no.26, Art.No. 266101, June 2005.

D.L. Zhang, D.C. Wang, and E.Y.B. Pun, ¡§Numerical analysis of optical amplification in Er3+/Yb3+ co-doped Ti:LiNbO3 strip waveguides,¡¨ IEEE Journal of Quantum Electronics, vol. 41, no.7, p.958-969, July 2005.

D.L. Zhang and E.Y.B. Pun, ¡§Emission characteristics of near-stoichiometric Er/Yb codoped LiNbO3 crystals,¡¨ Journal of Applied Physics, vol.99, no.2, Art. No.023101, January 2006.

D.L. Zhang, P. Zhang, and E.Y.B. Pun, ¡§Characterization of near-stoichiometric Ti:LiNbO3 strip waveguides with varied substrate refractive index in the guiding layer,¡¨ Journal of Optical Society of America A, vol. 25, no. 10, p.2558-2570, October 2008.

D.L. Zhang, P.R.Hua, and E.Y.B.Pun, ¡§Near-Stoichiometric Ti:LiNbO3 strip waveguides fabricated by standard Ti diffusion and post-VTE,¡¨ IEEE Photonics Technology Letters, vol. 21, no. 22, p.1665-1667, November 2009. 

P.R. Hua, D.L. Zhang, and E.Y.B. Pun, ¡§Photorefractive-damage-resistant locally Er/Mg-doped near-stoichiometric Ti:Mg:Er:LiNbO3 strip waveguides: a way towards new devices,¡¨ IEEE Photonics Technology Letters, vol.22, no.13, p.1008-1010, July 2010. 

D.L. Zhang, J. Gao, J.A. Valles, C. Xu, L. Sun, Y.H. Xu, and E.Y.B. Pun ¡§Emission and absorption cross-sections of Mg/Er-codoped near-stoichiometric LiNbO3 crystals,¡¨ IEEE Journal of Quantum Electronics, vol. 46, no. 9, p. 1332-1341, September 2010.  

P.R. Hua, D.L. Zhang, and E.Y.B. Pun, "Long period grating on strip Ti:LiNbO3 waveguide embedded in planar Ti: LiNbO3 waveguide" IEEE Photonics Technology Letters, vol. 22, no. 18, p.1361-1364, September 2010.

D.L. Zhang, S.Y. Xu, P.R. Hua, D.Y. Yu, and E.Y.B. Pun, ¡§Emission and absorption cross sections of photorefractive-damage-resistant locally Er-Mg-doped near-stoichiometric Ti:Mg:Er:LiNbO3 strip waveguides,¡¨IEEE Journal of Quantum Electronics, vol. 47, no. 4, p. 517-525, April 2011.




H.L.Tam, K.F. Li, K.W. Cheah, J.B. Xia, R. Huber, W.H. Wong, and Y.B. Pun, ¡§Surface plasmon coupling in hexagonal textured metallic microcavity,¡¨ Applied Physics Letters, vol.89, no. 13, Art. no. 131123, September 2006.

Y.T. Fang, J. Zhou, and E.Y.B. Pun,¡¨High-Q filters based on one-dimensional photonic crystals using epzilon-negative materials,¡¨ Applied Physics B -  Lasers and Optics, vol. 86, no.4, pp.587-591, March 2007. 

C.Y. Wong, L.M. Lai, S.L. Leung, V.A.L. Roy, and E.Y.B. Pun ¡§Ambipolar charge transport and electroluminescence properties of ZnO nanorods¡¨ Applied Physics Letters, vol. 93, Art no. 023502, July 2008. 

W. He, B.J. Li, and E.Y.B. Pun, ¡§Wavelength, cross-angle, and core-diameter dependence of coupling efficiency in nanowire evanescent wave coupling,¡¨ Optics Letters, vol. 34, no.10, p. 1597-1599, May 2009. 

M.Y. Chen, J. Zhou, and E. Y. B. Pun, ¡§A novel WDM component based on a three-core photonic crystal fiber,¡¨ OSA/IEEE Journal of Lightwave Technologies, vol. 27, no.13, p.2343-2347, July 2009. 

S.Q. Zeng, Y. Zhang, B. Li, and E.Y.B. Pun, ¡§Ultrasmall optical logic gates based on silicon periodic dielectric waveguides,¡¨  Photonics and Nanostructures - Fundamentals and Applications, vol. 8, no.1, p. 32-37, January 2010. 

S.X. Lin, A.C.Y. Wong, E.Y.B. Pun, and F. Song, ¡§The role of metal film electron density in a surface plasmon polariton assisted light emitter,¡¨ Nanotechnology, vol. 21, no.5, Art No 055203, Feburary 2010. 

Y.J. Zhang, R.Y. Zhang, Q.R. Wang, Z.S. Zhang, H.B. Zhu, J.D. Liu, F. Song, S.X. Lin, and E.Y.B. Pun, ¡§Fluorescence enhancement of quantum emitters with different energy systems near a single spherical metal nanoparticle,¡¨ Optics Express, vol. 18, no.5, pg.4316-4328, March 2010. 

Q. Wang, F. Song, C. Ming, H. Zhao, J. Liu, C. Zhang, S. X. Lin, and E.Y.B. Pun, ¡§Plasmonic-enhanced quantum efficiency of europium complex using annealed silver island films,¡¨ Journal of Optical Society of America B, vol. 28, no. 2, p.220-224, February 2011.

Q. Wang, F. Song, S. Lin, J. Liu, H. Zhao, C. Zhang, C. Ming, and E.Y.B. Pun, ¡§Optical properties of silver nanoprisms and their influences on fluorescence of europium complex,¡¨ Optics Express, vol. 19, no.8, p.6999-7006, April 2011.


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