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Proceedings Paper

Nondegenerate two-wave mixing in shaped microparticle suspensions
Author(s): Roberto Pizzoferrato; Marco De Spirito; Ugo Zammit; Massimo Marinelli; Daniel N. Rogovin; James F. Scholl
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Paper Abstract

Polarization-resolved coherent beam combination via nondegenerate two-wave mixing have been observed in water-glycerol suspensions of shaped polytetrafluoroethylene microparticles. Experiments detect coherent energy transfer arising from two different types of moving index gratings: translational and orientational. Additionally, the dependence of the two-wave mixing gain coefficient on the frequency-difference of the beams, pump intensity, and microparticle volume fraction was measured and found to be in accord with theory. Finally, beam combination was also achieved using degenerate laser beams and moving the suspension relative to the laser interference pattern.

Paper Details

Date Published: 1 June 1991
PDF: 10 pages
Proc. SPIE 1409, Nonlinear Optics II, (1 June 1991); doi: 10.1117/12.43577
Show Author Affiliations
Roberto Pizzoferrato, Univ. di Roma (Italy)
Marco De Spirito, Univ. di Roma (Italy)
Ugo Zammit, Univ. di Roma (Italy)
Massimo Marinelli, Univ. di Roma (Italy)
Daniel N. Rogovin, Rockwell International Science Ctr. (United States)
James F. Scholl, Rockwell International Science Ctr. (United States)

Published in SPIE Proceedings Vol. 1409:
Nonlinear Optics II
Robert A. Fisher; John F. Reintjes, Editor(s)

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