E. A. Bolkhovitinov, G. A. Gospodinov, K. A. Ivanov, A. A. Rupasov, A. B. Savel'ev, “Three-channel polaro-interferometer for laser-produced plasma diagnostics with femtosecond time resolution”, Kvantovaya Elektronika, 2019, Volume 49, Number 6,Pages <nobr>577

This article is cited in 1 paper

Laser plasma

Three-channel polaro-interferometer for laser-produced plasma diagnostics with femtosecond time resolution

E. A. Bolkhovitinov^a, G. A. Gospodinov^b, K. A. Ivanov^ab, A. A. Rupasov^a, A. B. Savel'ev^ab

^a P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow
^b Faculty of Physics, Lomonosov Moscow State University

Abstract: We describe an upgraded version of a three-channel polaro-interferometer, which enables laser-produced plasma probing with femtosecond time resolution. Test experiments are performed with the use of a 50-fs probe pulse and an air spark produced by a driving nanosecond laser pulse. High-contrast interference plasma images are recorded, making it possible to reconstruct the electron density plasma profile with femtosecond time resolution in a wide range of probing pulse delays relative to the driving pulse.

Keywords: laser-produced plasma, polaro-interferometer, interference image, time resolution.

Received: 11.10.2018
Revised: 31.01.2019