Spatial mode control of radiation generated by frequency difference in periodically poled crystals
Authors: Giusfredi G., Mazzotti D., Cancio P., De Natale P.
Autors Affiliation: INOA, Largo Fermi 6, I-50125 Firenze, Italy; European Laboratory for Non-linear Spectroscopy (LENS); Istituto Nazionale per la Fisica della Materia (INFM)
Abstract: We demonstrate the possibility to control the spatial mode of a narrow-linewidth, continuous-wave, infrared radiation beam generated by difference frequency in a periodically poled crystal. This can be achieved by acting directly on a few experimental parameters. We show that hollow beams can be generated. A numerical routine has been developed and results agree with experimental observations, without requiring any free parameters. The relevance of these results for high-resolution spectroscopy and atom manipulation is discussed.
Journal/Review: PHYSICAL REVIEW LETTERS
Volume: 87 (11) Pages from: 113901-1 to: 113901-4
KeyWords: Computer simulation; Crystals; Emission spectroscopy; Finite difference method; Infrared radiation; Laser beams; Lithium niobate; Mathematical models; Neodymium lasers; Pumping (laser); Quantum theory; Semiconductor lasers, Difference-frequency generation; High-resolution spectroscopy; Nonlinear crystal; Periodically poled crystal, Nonlinear opticsCitations: 14data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2023-09-24References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here