Shadowgraph And Interferometry Experiments With A Ten-Picosecond Light Source At Various Wavelengths

E. A. McLean; R. H. Lehmberg; J. M. McMahon; B. H. Ripin; J. A. Stamper; S. E. Bodner

doi:10.1117/12.955250

14 September 1977 Shadowgraph And Interferometry Experiments With A Ten-Picosecond Light Source At Various Wavelengths

E. A. McLean, R. H. Lehmberg, J. M. McMahon, B. H. Ripin, J. A. Stamper, S. E. Bodner

Proceedings Volume 0097, 12th Intl Congress on High Speed Photography; (1977) https://doi.org/10.1117/12.955250
Event: 12th International Congress on High Speed Photography, 1976, Toronto, Canada

Abstract

A very fast (~ 10 psec) laser light source has been constructed which can be used to make shadowgraph, interferometry, and other diagnostic photographs useful in laser fusion studies. To produce this pulsed light source, a portion of the 100 psec main Nd:glass laser pulse is split off, sent through CS₂ cells to produce a frequency chirp, and then optically compressed by diffraction gratings. By frequency converting the output pulse, one can perform studies at frequencies other than the fundamental (i.e., harmonic or Raman-shifted frequencies). The compressed pulse is absolutely time-synchronized with the main laser pulse. Shadowgrams taken using this technique are shown.

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E. A. McLean, R. H. Lehmberg, J. M. McMahon, B. H. Ripin, J. A. Stamper, and S. E. Bodner "Shadowgraph And Interferometry Experiments With A Ten-Picosecond Light Source At Various Wavelengths", Proc. SPIE 0097, 12th Intl Congress on High Speed Photography, (14 September 1977); https://doi.org/10.1117/12.955250

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