Optical: systems and elements – Optical modulator – Light wave temporal modulation
Patent
1991-06-13
1992-10-13
LaRoche, Eugene R.
Optical: systems and elements
Optical modulator
Light wave temporal modulation
359263, 359276, 359247, G02F 103, G02F 101
Patent
active
051556170
ABSTRACT:
Method and apparatus for electro-optically modulating the intensity of an incident light beam including a coupling prism with a high reflective index, a semiconductor substrate in optical contact with the coupling prism and having a conductive area formed therein, an organic electro-optic film formed on the substrate and covering at least a portion of the conductive area, and a transmission line disposed above the electro-optic film and cooperating with the conductive area to form electrodes for use in applying an electric field across the electro-optic film. Light directed through the substrate by the coupling prism couples with surface plasmons at the film-to-metal interface and is selectively reflected or absorbed depending upon whether or not an electric field is applied.
REFERENCES:
patent: 4451123 (1984-05-01), McNeill et al.
patent: 4948225 (1990-08-01), Rider et al.
patent: 5075796 (1991-12-01), Schildkraut et al.
Schildkraut, J. S.; "Long-range surface plasmon electroptic modulator", Applied Optics (1988) Nov. 1, No. 21 vol. 27 p. 4587+.
Solgaard Olav
Thackara John I.
LaRoche Eugene R.
Lester Evelyn A.
The Board of Trustees of the Leland Stanford Junior University
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