Title :
Optical preparation of stable supercooled VO2 nanocrystals: A route towards reconfigurable photonic devices for telecom wavelengths
Author :
Jostmeier, Thorben ; Zimmer, Johannes ; Karl, Holger ; Krenner, Hubert J. ; Betz, Markus
Author_Institution :
Exp. Phys. 2, Tech. Univ. Dortmund, Dortmund, Germany
Abstract :
Single-domain VO2 nanocrystals in a fused silica matrix exhibit an extremely large thermally and/or optically induced hysteresis around room temperature. We demonstrate optical imprinting of persistent diffraction gratings and repetitive (> 104) cycling through the phase transition.
Keywords :
diffraction gratings; hysteresis; nanofabrication; nanophotonics; nanostructured materials; optical fabrication; optical materials; solid-state phase transformations; supercooling; thermo-optical effects; vanadium compounds; VO2; fused silica matrix; optical imprinting; optical preparation; optically induced hysteresis; persistent diffraction gratings; phase transition; reconfigurable photonic devices; repetitive cycling; room temperature; single-domain nanocrystals; stable supercooled VO2 nanocrystals; telecom wavelengths; thermally induced hysteresis; Diffraction; Hysteresis; Optical bistability; Optical pulses; Optical pumping; Telecommunications; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
