The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 2006
Filed:
Aug. 01, 2003
Peter P. Sorokin, South Salem, NY (US);
James Glownia, Santa Fe, NM (US);
Rodney T. Hodgson, Ossining, NY (US);
Peter P. Sorokin, South Salem, NY (US);
James Glownia, Santa Fe, NM (US);
Rodney T. Hodgson, Ossining, NY (US);
Other;
Abstract
A novel practicable type of gaseous optical gain medium for efficiently generating intense, highly monochromatic, continuous-wave (CW) or pulsed, coherent light beams is disclosed. Gain results from nonlinear optical pumping of a gas of Λ-type 'three-level' atoms, coherently phased ('dressed') via application to the medium of two monochromatic laser beams tuned to the resonance frequencies ωand ω'. Nonlinear optical pumping of the “dressed-atom” gas is accomplished through the combined action of two separate physical processes: (1) A low pressure gaseous discharge, occurring continuously within the vessel containing the gain medium, produces intense narrow-band fluorescence at ωand ω′through the process of electron impact excitation (EE). (2) Via a specific form of the nonlinear photonic process of stimulated hyper-Raman scattering (SHRS), photons comprised by the narrow-band fluorescence generated in (1) are efficiently converted to photons comprised by the propagating coherent light beams at ωand ω′, thus effecting amplification of the latter.