Journal
OPTICS EXPRESS
Volume 20, Issue 14, Pages 14789-14796Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.20.014789
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Funding
- Japan Society for the Promotion of Science (JSPS) through its Funding Program for World-Leading Innovation R&D on Science and Technology (FIRST Program)
- MEXT Japan
- WCU program of the National Research Foundation of Korea (NRF) [R32-2008-000-10204-0]
- Grants-in-Aid for Scientific Research [23360033, 20226002, 10J06649] Funding Source: KAKEN
- National Research Foundation of Korea [R32-2008-000-10204-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We show that a SiC photonic crystal cannot only inhibit two photon absorption completely, but also suppress higher-order multiple photon absorption significantly at telecommunication wavelengths, compared to conventional Si-based photonic crystal nanocavities. Resonant spectra of a SiC nanocavity maintain a Lorentzian profile even at input energies 100 times higher than what can be applied to a Si nanocavity without causing nonlinear effects. Theoretical fitting of the results indicates that the four photon absorption coefficient in the SiC nanocavity is less than 2.0 x 10(-5) cm(5)/GW(3). These results will contribute to the development of high-power applications of SiC nanocavities such as harmonic generation, parametric down conversion, and Raman amplification. (c) 2012 Optical Society of America
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