Print Email Facebook Twitter Tuning of a cavity in a silicon photonic crystal by thermal expansion of an elastomeric infill Title Tuning of a cavity in a silicon photonic crystal by thermal expansion of an elastomeric infill Author Erdamar, A.K. Van Leest, M.M. Picken, S.J. Caro, J. Faculty Applied Sciences Department QN/Quantum Nanoscience Date 2011-09-16 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. Subject elastomerselemental semiconductorsoptical tuningphotonic crystalsred shiftsiliconthermal expansionthermo-optical effects To reference this document use: http://resolver.tudelft.nl/uuid:f80e6c44-4104-4050-9eda-f0858b01e926 DOI https://doi.org/10.1063/1.3640235 Publisher American Institute of Physics ISSN 0003-6951 Source http://link.aip.org/link/doi/10.1063/1.3640235 Source Applied Physics Letters, 99 (11), 2011 Part of collection Institutional Repository Document type journal article Rights © 2011 The Author(s)American Institute of Physics Files PDF Erdamar_2011.pdf 501.15 KB Close viewer /islandora/object/uuid:f80e6c44-4104-4050-9eda-f0858b01e926/datastream/OBJ/view