Shock-wave measurements of solids using the long-pulsed laser

Mazakazu Uchino; Masahide Kaetsu; Tsutomu Mashimo

doi:10.1117/12.273357

28 May 1997 Shock-wave measurements of solids using the long-pulsed laser

Mazakazu Uchino, Masahide Kaetsu, Tsutomu Mashimo

Proceedings Volume 2869, 22nd International Congress on High-Speed Photography and Photonics; (1997) https://doi.org/10.1117/12.273357
Event: 22nd International Congress on High-Speed Photography and Photonics, 1996, Santa Fe, NM, United States

Abstract

The optical measurement system using long-pulsed lasers were constructed for shock-wave measurements and spectroscopy under shock compression of solids. We have produced two types of long-pulsed lasers with no Q-switch for such purposes: Nd:YAG frequency-double laser using an intracavity KTP crystal, and dye laser using a rhodamine 6G. They consisted of doubled-elliptical pump cavity, two zenon flash lamps, and a high-voltage electrical-pulse source. The former one can be used as a light source for a Fabry-Perot type Interferometer (FPI), and the latter one can be used as a constant light source for a luminescence or an absorption spectroscopy and for the inclined-mirror method. The inclined-mirror Hugoniot measurements of some materials were performed by using the long-pulsed dye laser and the mirror- rotating type streak camera. The time resolution was increased by using a narrow width slit and the laser. The velocity-interferometer system for shock-wave measurements using a FPI and the time-resolved optical spectroscopy system using a spectrometer were constructed combined with the Nd:YAG frequency-doubled laser and the dye laser, respectively, and with an image-converter streak camera.

Citation Download Citation

Mazakazu Uchino, Masahide Kaetsu, and Tsutomu Mashimo "Shock-wave measurements of solids using the long-pulsed laser", Proc. SPIE 2869, 22nd International Congress on High-Speed Photography and Photonics, (28 May 1997); https://doi.org/10.1117/12.273357

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