Add to BibSonomy
Abstract
Standard optical pump-probe methods analyze a system’s temporal response to a laser pulse within sub-femtoseconds to several nanoseconds, constrained by the optical delay line’s length. While resistance is a sensitive detector in various fields, its measurements are typically slow (${\gt}\unicode{x00B5}{\rm s}$) due to stabilization requirements. We suggest here a time-resolved pump-probe technique that combines an optical pump pulse and a rectangular electrical probe pulse through the sample, measuring transmission in a 50 ohm matched circuit with a digital oscilloscope. This allows electrically driven delays from nanoseconds to seconds. Demonstrations include studying heat-induced changes in a thin amorphous ${{\rm VO}_x}$ film and carrier relaxation in a CdS photoresistor, showcasing potential applications in heat transfer, biochemical reactions, and gradual electronic transformations.
© 2024 Optica Publishing Group
Full Article | PDF ArticleMore Like This
M. V. Suryanarayana
J. Opt. Soc. Am. B 41(2) 311-320 (2024)
Konrad Birkmeier and Achim Hartschuh
J. Opt. Soc. Am. B 41(2) 493-499 (2024)
Laurent Vivien, Didier Riehl, Jean-François Delouis, Jacques A. Delaire, François Hache, and Eric Anglaret
J. Opt. Soc. Am. B 19(2) 208-214 (2002)