Talbot Array Illuminator for Single-Shot Measurements of Laser-Induced-Damage Thresholds of Thin-Film Coatings
Applied Optics, Vol. 39, Issue 10, pp. 1493-1499 (2000)
http://dx.doi.org/10.1364/AO.39.001493
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Abstract
A highly efficient Talbot array illuminator for single-shot, laser-induced-damage test measurements of optical thin-film coatings is proposed. With a periodic binary phase grating, a laser beam is transformed into an ensemble of Gaussian-like spots, which are known as the Fresnel image of the grating. For this purpose hexagonal phase gratings were fabricated and analyzed. With a peak fluence distribution of ~1 order of magnitude, the damage threshold of thin films can be deduced by use of the data from only a single shot.
© 2000 Optical Society of America
[Optical Society of America ]
OCIS Codes
(070.6760) Fourier optics and signal processing : Talbot and self-imaging effects
(140.3330) Lasers and laser optics : Laser damage
Citation
Christoph Siegel, Frank Loewenthal, Jürg E. Balmer, and Heinz P. Weber, "Talbot Array Illuminator for Single-Shot Measurements of Laser-Induced-Damage Thresholds of Thin-Film Coatings," Appl. Opt. 39, 1493-1499 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-10-1493
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