Doped-germanium sensor for use in a system to control the alignm

Details Doped-germanium sensor for use in a system to control the alignm Doped-germanium sensor for use in a system to control the alignm

1990-11-26

1992-12-01

Buczinski, Stephen C.

Optics: measuring and testing

Angle measuring or angular axial alignment

With photodetection remote from measured angle

2503384, 250342, 257431, G01B 1126, G01C 100, G01J 520, H01L 2714

Patent

active

051683210

ABSTRACT:
A photoconductive sensor responsive to a CO.sub.2 laser beam. The sensor comprises a silver-doped germanium semiconductor. The silver dopant changes the conductive characteristics of the semiconductor which results in the doped germanium semiconductor being responsive to a wavelength range it would not normally be responsive to.

REFERENCES:
patent: 3746454 (1973-07-01), Pace et al.
patent: 4376659 (1983-03-01), Castro

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