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

fYear

2006

fDate

21-26 May 2006

Firstpage

1

Lastpage

2

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CLEO.2006.4629013

Filename

4629013