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Tuning of a cavity in a silicon photonic crystal by thermal expansion of an elastomeric infill.
- Source :
-
Applied Physics Letters . 9/12/2011, Vol. 99 Issue 11, p111113. 3p. 3 Graphs. - Publication Year :
- 2011
-
Abstract
- We use an elastomer as infill material for a photonic crystal. As a result of the thermal-expansion-induced strongly negative thermal optical coefficient, this material is highly suitable for thermal tuning of the transmission of a cavity. This is demonstrated by global infilling of a hole-type silicon photonic crystal slab and global thermal tuning. In the temperature range 20-60 °C 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. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SILICON crystals
*PHOTONICS
*ELASTOMERS
*NONMETALS
*THERMAL expansion
Subjects
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 99
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 65503687
- Full Text :
- https://doi.org/10.1063/1.3640235