Superlattice structure

Details Superlattice structure Superlattice structure

1990-03-19

1992-02-25

James, Andrew J.

Coherent light generators

Particular component circuitry

Optical pumping

357 16, 357 17, 372 45, H01L 2712, H01L 29161, H01L 3300

Patent

active

050917560

ABSTRACT:
A superlattice structure composed of at least two kinds of crystal layers, such as semiconductor layers, being different in bandgap, being combined alternately with each others, and the physical parameters of the layers being designed so that phase differences of reflected waves of injected electrons or holes are substantially equal to .pi. multiplied by an odd numbered integer so that the energy potential barrier height is effectively increased. When used in semiconductor lasers, it allows the confining efficiency of injected carriers to be noticeably improved.

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Miller et al., "Parabolic Quantum Wells with the GaAs-Al.sub.x Ga.sub.1-x As System", vol. 29, No. 6, pp. 3740 to 3743, 1984, the American Physical Society.

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