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Title: Second-harmonic generation excited by a rotating Laguerre-Gaussian beam

Journal Article · · Physical Review. A
 [1]
  1. ICFO - Institut de Ciencies Fotoniques, Mediterranean Technology Park, ES-08860, Castelldefels (Barcelona), Spain and ICREA - Institucio Catalana de Recerca i Estudis Avancats, ES-08010, Barcelona (Spain)

Experimental data demonstrate that unlike linear optical processes, an optical Laguerre-Gaussian beam of frequency {omega}, with topological charge m, rotating with angular frequency {Omega}<<{omega}, may not be considered as a monochromatic beam with the shifted frequency {omega}+m{Omega} (Doppler angular shift) for the second-harmonic generation nonlinear process.

OSTI ID:
21454801
Journal Information:
Physical Review. A, Vol. 82, Issue 3; Other Information: DOI: 10.1103/PhysRevA.82.035801; (c) 2010 The American Physical Society; ISSN 1050-2947
Country of Publication:
United States
Language:
English