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Velocity measurement using frequency domain interferometer and chirped pulse laser
Author(s): K. Ishii; Y. Nishimura; Y. Mori; R. Hanayama; Y. Kitagawa; T. Sekine; N. Sato; T. Kurita; T. Kawashima; A. Sunahara; Y. Sentoku; E. Miura; A. Iwamoto; H. Sakagami
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Paper Abstract

An ultra-intense short pulse laser induces a shock wave in material. The pressure of shock compression is stronger than a few tens GPa. To characterize shock waves, time-resolved velocity measurement in nano- or pico-second time scale is needed. Frequency domain interferometer and chirped pulse laser provide single-shot time-resolved measurement. We have developed a laser-driven shock compression system and frequency domain interferometer with CPA laser. In this paper, we show the principle of velocity measurement using a frequency domain interferometer and a chirped pulse laser. Next, we numerically calculated spectral interferograms and show the time-resolved velocity measurement can be done from the phase analysis of spectral interferograms. Moreover we conduct the laser driven shock generation and shock velocity measurement. From the spectral fringes, we analyze the velocities of the sample and shockwaves.

Paper Details

Date Published: 22 February 2017
PDF: 7 pages
Proc. SPIE 10089, Real-time Measurements, Rogue Phenomena, and Single-Shot Applications II, 100890H (22 February 2017); doi: 10.1117/12.2255704
Show Author Affiliations
K. Ishii, The Graduate School for the Creation of New Photonics Industries (Japan)
Y. Nishimura, Toyota Technical Development Corp. (Japan)
Y. Mori, The Graduate School for the Creation of New Photonics Industries (Japan)
R. Hanayama, The Graduate School for the Creation of New Photonics Industries (Japan)
Y. Kitagawa, The Graduate School for the Creation of New Photonics Industries (Japan)
T. Sekine, Hamamatsu Photonics K.K. (Japan)
N. Sato, Hamamatsu Photonics K.K. (Japan)
T. Kurita, Hamamatsu Photonics K.K. (Japan)
T. Kawashima, Hamamatsu Photonics K.K. (Japan)
A. Sunahara, Institute for Laser Technology (Japan)
Y. Sentoku, Osaka Univ. (Japan)
E. Miura, National Institute of Advanced Industrial Science and Technology (Japan)
A. Iwamoto, National Institute for Fusion Science (Japan)
H. Sakagami, National Institute for Fusion Science (Japan)


Published in SPIE Proceedings Vol. 10089:
Real-time Measurements, Rogue Phenomena, and Single-Shot Applications II
Bahram Jalali; Daniel R. Solli; Sergei K. Turitsyn; Günter Steinmeyer; Neil G. R. Broderick, Editor(s)

Video Presentation

Velocity-measurement-using-frequency-domain-interferometer-and-chirped-pulse-laser



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