Open AccessThermal tuning of a silicon photonic crystal cavity infilled with an elastomer
Author(s) -
A. K. Erdamar,
M. M. van Leest,
Stephen J. Picken,
J. Caro
Publication year - 2011
Publication title -
proceedings of spie, the international society for optical engineering/proceedings of spie
Language(s) - English
Resource type - Conference proceedings
SCImago Journal Rank - 0.192
H-Index - 176
eISSN - 1996-756X
pISSN - 0277-786X
DOI - 10.1117/12.893940
Subject(s) - elastomer , materials science , refractive index , silicon , photonic crystal , thermal expansion , optoelectronics , thermal , crystal (programming language) , optics , composite material , silicon photonics , physics , meteorology , computer science , programming language
Thermal 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.Quantum NanoscienceApplied Science
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