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Thermal tuning of a silicon photonic crystal cavity infilled with an elastomer
Proc. SPIE 8095, 80951J (2011); http://dx.doi.org/10.1117/12.893940
Monday 22 August 2011
San Diego, California, USA
Active Photonic Materials IV
Ganapathi S. Subramania, Stavroula Foteinopoulou
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Add to FacebookThermal tuning of the transmission of an elastomer infilled photonic crystal cavity is studied. An elastomer has a thermal expansion-induced negative thermo-optic coefficient that leads to a strong decrease of the refractive index upon heating. This property makes elastomer highly suitable for thermal tuning of the transmission of a cavity, which is demonstrated by global infilling of a hole-type silicon photonic crystal slab and global thermal tuning. In the temperature range 20-60 0C the cavity peak shows a pronounced elastomer-induced blue shift of 2.7 nm, which amply overcompensates the red shift arising from the thermo-optic property of the silicon. These results qualify the elastomer for tuning by local optical heating.
© 2011 COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Online Sep 12, 2011
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A. K. Erdamar, Matheus M. van Leest, Stephen J. Picken and J. Caro, "Thermal tuning of a silicon photonic crystal cavity infilled with an elastomer",
Proc. SPIE 8095, 80951J (2011); http://dx.doi.org/10.1117/12.893940
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