Program

P.13 -- Poster, NCTP-40

Date: Monday, 27 July 2015

Time: 14h00 - 15h30

Numerical study of whispering gallery mode in photonic crystal H2 defect nanocavity

Le Hai My Ngan, Nguyen Thi Anh Nguyet, Tran Ngoc Huy

HCM University of Pedagogy

We present a numerical analysis of whispering gallery mode (WGM) in photonic crystal H2 defect. Using plane-wave expansion and finite-difference time-domain calculations, we investigate WGM of photonic-crystal-slab triangular H2-defect nanocavity structures as a good candidate for a high-quality factor (Q) and small-mode volume (V) resonant mode. We show a strong WG mode dependence on 12 nearest air-holes around the nanocavity. The ideal symmetric nature of the WG mode profile reduces the out-of-slab radiation and allows us to achieve a high Q. These results show a possible way to realize an optical resonator of the optoelectronic oscillator and practical silicon-based light emitting devices.

Presenter: LÊ Hải Mỹ Ngân