Cooperative photorefractive beam fanning in BaSrKNaNb_5O_15

Autor:	Gregory J. Salamo, Ratnakar R. Neurgaonkar, Steven R. Montgomery, Gary L. Wood, Edward J. Sharp, Michael P. Gallagher
Rok vydání:	1994
Předmět:	Physics Birefringence business.industry Scattering Physics::Optics Statistical and Nonlinear Physics Photorefractive effect Laser Polarization (waves) Atomic and Molecular Physics and Optics law.invention Wavelength Optics law Laser beam quality business Beam (structure)
Zdroj:	Journal of the Optical Society of America B. 11:1694
ISSN:	1520-8540 0740-3224
Popis:	A multiline laser beam incident upon a BaSrKNaNb5O15 crystal causes rings to form in the beam fan by means of cooperative photorefractive fanning between the different wavelengths. We examine the novel case in which the input beam consists of two lines from an argon-ion laser with independently controlled linear polarizations as well as the single-line case with equal amounts of ordinary and extraordinary light. We compute the expected rings in each case, taking full account of the crystal birefringence, and compare them with the experimental data. Applications of the rings to crystallography and cryptology are presented.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::45f17e4c06b3ef6e3ecce324df378569 https://doi.org/10.1364/josab.11.001694 Zobrazit plný text záznamu