Microcavity LED with photon recycling

Details Microcavity LED with photon recycling Microcavity LED with photon recycling

1995-10-30

1998-01-20

Saadat, Mahshid D.

Active solid-state devices (e.g., transistors, solid-state diode

Incoherent light emitter structure

With reflector, opaque mask, or optical element integral...

257 14, 257 79, 257 97, 257183, 257773, 257774, 372 49, 372 99, H01L 3300, H01S 319, H01S 308

Patent

active

057104417

ABSTRACT:
A microcavity LED with photon recycling including a substrate having at least one layer of material positioned thereon, and a first cladding layer, a second cladding layer and an active region sandwiched therebetween forming a mesa on the layer of material. The mesa has generally vertical sides and an upper surface with an electrically conductive and light reflective system positioned on the vertical sides of the mesa and partially covering the upper surface to form a first electrical contact for the LED, the electrically conductive and light reflective system defining a centrally located light emitting opening on the surface of the mesa, the mesa having a diametric dimension of the surface greater than one time larger than a diametric dimension of the opening.

REFERENCES:
patent: 4970566 (1990-11-01), Mendelhall
patent: 5055893 (1991-10-01), Sasagawa
patent: 5162878 (1992-11-01), Sasagawa et al.
patent: 5358880 (1994-10-01), Lebby et al.
Gourley et al., "A Different Mirror", IEEE Spectrum, Aug. 1994, pp. 31-33, 36, 37.

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