Peer reviewed papers
● X. Zhang, H.-S. Choi, A. M. Armani, Ultimate quality factor of silica microtoroid resonant cavities, Applied Physics Letters, Volume 96, No. 16, April 2010.
● H.-S. Choi, X. Zhang, A. M. Armani, Hybrid silica-polymer ultra-high-Q microresonators, Optics Letters, Volume 35, No. 4, February 2010.
● X. Zhang et al, optimization and analysis of magnesium doping in MOCVD grown p-GaN, Journal of Semiconductors, vol. 29, no. 8., August 2008