Polymer photodetector having resonant wavelength control functio

Details Polymer photodetector having resonant wavelength control functio Polymer photodetector having resonant wavelength control functio

1997-08-01

2000-05-30

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250372, H01L 310248

Patent

active

060693533

ABSTRACT:
A polymer photodetector includes a resonant wavelength controller which resonates an optical beam with a particular wavelength only from the incident optical beam received thereinto through the rear surface of the reflection layer, so as to selectively detect the optical beam with the particular wavelength. The resonant wavelength controller includes a fixed mirror layer, a movable mirror layer, and an air layer disposed therebetween. The resonant wavelength can be adjusted by varying an optical length between the movable mirror layer and the fixed mirror layer. The optical length can be adjusted by varying the thickness of the air layer between the movable mirror layer and the fixed mirror layer by way of adjusting the electrostatic force.

REFERENCES:
patent: 5444270 (1995-08-01), Cunningham et al.
patent: 5523555 (1996-06-01), Friend et al.
patent: 5559400 (1996-09-01), Nakayama et al.
G. Yu et al., "Dual-function Semiconducting Polymer Devices: Lightemitting and Photodetecting Diodes", 1994 American Institute of Physics, Mar. 21, 1994, pp. 1540-1542.
G. Yu et al., "Semiconducting Polymer Diodes: Large Size, Low Cost Photodetectors with Excellent Visible-Ultraviolet Sensitivity", 1994 American Institute of Physics, Jun. 20, 1994, pp. 3422-3424.

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