Journal
PHYSICAL REVIEW A
Volume 79, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.79.043818
Keywords
gallium arsenide; III-V semiconductors; microcavities; nanophotonics; nonlinear optics; optical materials; photonic crystals; thermo-optical devices
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Funding
- Fulbright Grant
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We investigate the nonlinear response of GaAs-based photonic crystal cavities at time scales which are much faster than the typical thermal relaxation rate in photonic devices. We demonstrate a strong interplay between thermally and carrier-induced nonlinear effects. We have introduced a dynamical model entailing two thermal relaxation constants which is in very good agreement with experiments. These results will be very important for photonic crystal-based nonlinear devices intended to deal with practical high repetition rate optical signals.
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