Photonic crystal structures and material

Photonic crystals are periodic structures fabricated from high-refractive-index materials such as Si or GaAs. Band structure engineering provides exquisite control over light dispersion, and thereby also over how fast signals of different wavelengths propagate, as given by the group velocity dw/dk. Slowing down light in waveguides, and confining it in optical nanocavities, can be used to create optical memories and enhance light switching and manipulation schemes based on ultrafast modulation of the local refractive index. Two research topics will be investigated in this field, i.e., (1) enlarging photonic bandgap and waveguide design with plasmonics and (2) photonic crystal fiber sensor design and applications.

More details: Chou Chau Yuan-Fong.

Selected Publications

  • Yuan-Fong Chou Chau*, Chee Ming Lim, Voo Nyuk Yoong, and Muhammad Nur Syafi'ie Idris, “A simple structure of all circular-air-holes photonic crystal fiber for achieving high birefringence and low confinement loss” Journal of Applied Physics, (2015) 118, pp 243102. DOI: 10.1063/1.4938152.
  • Li-Zen Hsieh, Yuan-Fong Chou Chau*, Chee Ming Lim, Mo-Hua Lin, Hung Ji Huang, Chun-Ting Lin, Md Idris Muhammad Nur Syafi’ie, “Metal nano-particles sizing by thermal annealing for the enhancement of surface plasmon effects in thin-film solarcells application” Optics Communications, (2016) 370, pp. 85-90. DOI: doi:10.1016/j.optcom.2016.03.009.
  • Chih-Chan Hu, Yuan-Fong Chou Chau*, Chee Ming Lim, Kuang-Hsiung Tan, “Comparative study of low-frequency noise in 0.18 um and 0.35 um gate-length nMOSFETs with gate area of 1.1 um2” Microelectronic Reliablity, (2016), in press, DOI: 10.1016/j.microrel.2016.02.008.