Deposition of energy outside of the focal spot as observed on the rear surface of laser irradiated targets

Using a normally impinging, visible backlighting technique, lateral energy transport out of the focal spot has been observed on the rear surface of targets irradiated by 1.06 μm laser light. The range of irradiances employed extended from 5 × 10 12 to 2 × 10 14 W/cm 2. For a small focal spot, 40 μm...

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Bibliographic Details
Published in:Physics letters. A 1985-01, Vol.112 (5), p.223-226
Main Authors: Zigler, A., Ludmirsky, A., Loeb, A., Borowitz, J.L., Eliezer, S., Givon, M., Gazit, Y., Jackel, S., Krumbein, A.D., Rosenblum, M., Arad, B.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma interactions (nonlaser)
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Summary:Using a normally impinging, visible backlighting technique, lateral energy transport out of the focal spot has been observed on the rear surface of targets irradiated by 1.06 μm laser light. The range of irradiances employed extended from 5 × 10 12 to 2 × 10 14 W/cm 2. For a small focal spot, 40 μm in diameter, and targets thinner than 30 μm, the energy out of the focal spot arrives at the rear surface before the central shock wave.
ISSN:0375-9601
1873-2429
DOI:10.1016/0375-9601(85)90508-0