title: Photoinduced local heating in silica photonic crystals for fast and reversible switching.
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.
authors.affiliation: Instituto de Ciencia de Materiales de Madrid, C/Sor Juana Inés de la Cruz 3, 28049 Madrid, Spain. francisco.gallego@icmm.csic.es
authors.forename: Francisco
authors.initials: F
authors.lastname: Gallego-Gómez
authors.forename: Alvaro
authors.initials: A
authors.lastname: Blanco
authors.forename: Cefe
authors.initials: C
authors.lastname: López
mesh_terms: D000327:Adsorption; D003460:Crystallization; D006361:Heating; D007259:Infrared Rays; D017785:Photons; D012822:Silicon Dioxide / Q000737:chemistry*; D014466:Ultraviolet Rays; D014867:Water / Q000737:chemistry
chemical_list: D014867:Water; D012822:Silicon Dioxide