Streak camera diagnostic of femtosecond laser spark

Sergei V. Garnov; Vitali I. Konov; V. I. Lozovoi; Alexander A. Malyutin; Mikhail Ya. Schelev; Nikolai S. Vorobiev

doi:10.1117/12.571805

17 March 2005 Streak camera diagnostic of femtosecond laser spark

Sergei V. Garnov, Vitali I. Konov, V. I. Lozovoi, Alexander A. Malyutin, Mikhail Ya. Schelev, Nikolai S. Vorobiev

Proceedings Volume 5580, 26th International Congress on High-Speed Photography and Photonics; (2005) https://doi.org/10.1117/12.571805
Event: 26th International Congress on High-Speed Photography and Photonics, 2004, Alexandria, Virginia, United States

Abstract

We report on time-resolved spectroscopy of femtosecond laser plasma with the use of ultrafast streak cameras. Laser spark was excited in air, nitrogen, argon or helium by tightly focused Ti: sapphire 130 fs, 1mJ, 800 nm single laser pulses. Maximum laser radiation intensity in the focal point was up to 2.5x10¹⁷ W/cm². The time behavior of laser plasma continuum, tabulated spectral lines as well as the second and third harmonics were observed with pico-femtosecond time resolution. We believe that the second harmonic generation in femtosecond laser spark was recorded for the first time.

Citation Download Citation

Sergei V. Garnov, Vitali I. Konov, V. I. Lozovoi, Alexander A. Malyutin, Mikhail Ya. Schelev, and Nikolai S. Vorobiev "Streak camera diagnostic of femtosecond laser spark", Proc. SPIE 5580, 26th International Congress on High-Speed Photography and Photonics, (17 March 2005); https://doi.org/10.1117/12.571805

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