期刊
IEEE PHOTONICS TECHNOLOGY LETTERS
卷 18, 期 17-20, 页码 1996-1998出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2006.882305
关键词
microcavity; optical bistability; photonic crystal (PC)
We report on bistable operations in a microcavity formed on an AlGaAs-based pbotonic crystal slab at telecommunication wavelengths. We designed the cavity to achieve a high quality (Q)-factor, while maintaining a small mode volume; this was accomplished by removal of a single air hole. The fabricated microcavity exhibited a resonant peak with a Q-factor of 1900 at 1548 run. In nonlinear transmission measurement, when the input power was increased, a bistable characteristic which was dependent on the detuned wavelength from the resonance was observed. The bistability was considered to originate from thermal nonlinearity due to two-photon absorption.
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