Coherent switch of currents in semiconductors

Details Coherent switch of currents in semiconductors Coherent switch of currents in semiconductors

1994-07-22

1995-10-17

Saadat, Mahshid D.

Optical: systems and elements

Optical modulator

Light wave temporal modulation

257 24, 257 27, 257184, 257192, 359298, 359338, 359344, 372 26, 372 29, 372 74, 372 75, G02F 129, G02F 101, H01L 3112, H01S 310

Patent

active

054596041

ABSTRACT:
A method and apparatus is provided for propagating photoelectrons in a semiconductor material and for controlling the direction of photoelectrons produced in a semiconductor material. A selected region of the semiconductor material is irradiated with two beams of light that overlap in space and time. The two interfering light beams have a predetermined phase relationship and are harmonically related such that the frequency of one is approximately a multiple of two of the other. Each of the beams of light produce substantially a same number of photoelectrons in the semiconductor material. As the phase relationship between the two beams is varied, the direction of propagation of the photoelectrons produced, varies.

REFERENCES:
patent: 5034903 (1991-07-01), Alfano et al.
patent: 5148242 (1992-09-01), Tsukada et al.
patent: 5157467 (1992-10-01), Fujii
patent: 5321714 (1994-06-01), Paoli

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