Title :
Time resolved conductivity dynamics in vanadium dioxide
Author :
Hilton, D.J. ; Prasankumar, R.P. ; Fourmaux, S. ; Cavalleri, A. ; Brassard, D. ; El Khakani, M.A. ; Kieffer, J.C. ; Taylor, A.J. ; Averitt, R.D.
Author_Institution :
Center for Integrated Nanotechnol., Los Alamos Nat. Lab., Los Alamos, NM
Abstract :
Optical-pump terahertz-probe spectroscopy is used to investigate the photoinduced insulator-to-metal phase transition in vanadium dioxide. The observed dynamics are consistent with a spatially inhomogeneous insulating state.
Keywords :
high-speed optical techniques; metal-insulator transition; optical conductivity; semiconductor thin films; time resolved spectra; vanadium compounds; VO2; femtosecond excitation; insulating state; insulator-to-metal phase transition; optical-pump spectroscopy; photoinduced phase transition; spatially inhomogeneous state; terahertz-probe spectroscopy; time resolved conductivity dynamics; vanadium dioxide; Conductivity measurement; Electron optics; Insulation; Magnetic materials; Optical distortion; Optical films; Optical materials; Optical pumping; Superconducting materials; Ultrafast optics; (160.4760) Optical Properties; (320.7130) Ultrafast processes in condensed matter, including semiconductors;
Conference_Titel :
Lasers and Electro-Optics, 2006 and 2006 Quantum Electronics and Laser Science Conference. CLEO/QELS 2006. Conference on
Conference_Location :
Long Beach, CA
Print_ISBN :
978-1-55752-813-1
Electronic_ISBN :
978-1-55752-813-1
DOI :
10.1109/CLEO.2006.4629013
