Spatial‐frequency selection using downconversion optical parametric amplification

Autor:	Paul A. Laferriere, Mark A. Kramer, Lee P. Schelonka, Charles J. Wetterer
Rok vydání:	1989
Předmět:	Chemistry business.industry Physics::Optics General Physics and Astronomy Second-harmonic generation Nonlinear optics Lithium iodate Laser pumping Laser Optical parametric amplifier law.invention Optical pumping chemistry.chemical_compound Optics Signal beam law business
Zdroj:	Journal of Applied Physics. 65:3347-3350
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.342648
Popis:	We have observed spatial‐frequency selection using downconversion optical parametric amplification in lithium iodate. A mode‐locked Nd:YAG laser with a second harmonic generator provided the pump beam at 532 nm and the signal beam at 1064 nm. An image was placed on the signal beam and spatial frequencies from 0 to 60 lines/mm were selectively amplified from the image by rotating the lithium iodate crystal 0°–0.77° from the phase‐match angle. The optical parametric amplifier’s passband behavior was in excellent agreement with the existing theory.
Databáze:	OpenAIRE
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