Lighting device

Details Lighting device Lighting device

1986-04-09

1988-12-13

Sikes, William L.

Coherent light generators

Short wavelength laser

372 1, 372 41, 372 74, H01S 330

Patent

active

047916451

ABSTRACT:
A lighting device is provided for emitting superradiant fluorescent light. First material layers are provided which emit predetermined electromagnetic waves of spontaneous emission when supplied with a predetermined energy (e.g. a pumping ray or beam). Second material layers, transparent to the electromagnetic wave, are stacked between the layers of the first material. To provide an improved light emission, the second material layers are arranged so that the interspaces l between the first material layers are smaller than c.multidot..tau..sub.R, where c is the velocity of said electromagnetic wave and .tau..sub.R is a time constant of the spontaneous emission.

REFERENCES:
patent: 3338841 (1967-08-01), Brixner

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