Electromagnetic scattering in active guides

Details Electromagnetic scattering in active guides Electromagnetic scattering in active guides

1989-05-31

1992-02-18

Gonzalez, Frank

Coherent light generators

Optical fiber laser

372 7, 372 94, 372108, 385122, 385130, H01S 330

Patent

active

050900170

ABSTRACT:
Non-normal plane wave electromagnetic scattering from active guiding structures, such as dielectric films, generates large resonances at discrete plane-wave angles of incidance relative to an interface with the active film. These resonances are generated from a "leaky" wave phase matching condition. Enhancement in the scattered field intensities on the order of 100 is achieved using finite diameter pump and probe laser beams and active films as thin as 6 microns. Solid state and dye lasers with unique characteristics are obtained. Oscillators, amplifiers, cyroscopic and nonlinear laser applications employing the active guiding structure or film provide enhanced performance.

REFERENCES:
patent: 3515897 (1970-06-01), Culver
patent: 3898585 (1975-08-01), Heidrich et al.
patent: 4616898 (1986-10-01), Hicks, Jr.
patent: 4676583 (1987-06-01), Hicks, Jr.
patent: 4778238 (1988-10-01), Hicks
Alexopoulos et al., "Electromagnetic Scattering from Active Objects: Invisible Scatterers," Applied Optics 17:235, (1978).
Kerker et al., "Electromagnetic Scattering from Active Objects," Applied Optics 17:3337 (1978).
Kerker et al., "Resonances in Electromagnetic Scattering by Objects with Negative Absorption," Applied Optics 18:1180 (1979).
Cohen et al., "Reflection Coefficients of Large Active Scatterers," Applied Physics 58:7, 2437-2440 (1985).

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