Photoinduced local heating in silica photonic crystals for fast and reversible switching.
basic_science · Level V
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- Record sourced from PubMed, PMID 22976241.
- Also identified by DOI 10.1002/adma.201202828.
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Abstract
Fast and reversible photonic-bandgap tunability is achieved in silica artificial opals by local heating. The effect is fully reversible as heat rapidly dissipates through the non-irradiated structure without active cooling and water is readsorbed. The performance is strongly enhanced by decreasing the photoirradiated opal volume, allowing bandgap shifts of 12 nm and response times of 20 ms.
Medical subject headings
- Silicon Dioxide