Near field optical probe for simultaneous phase and enhanced amp

Details Near field optical probe for simultaneous phase and enhanced amp Near field optical probe for simultaneous phase and enhanced amp

1997-05-14

1999-11-23

Allen, Stephone B

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250306, 250216, H01J 314, H01J 516

Patent

active

059904747

ABSTRACT:
A probe includes first and second single-mode optical fibers with a semi-reflecting mirror between them. The second optical fiber is tapered by heating and pulling. The semi-reflecting mirror, the tapered portion, and the sample form a Fabry-Perot cavity. The probe can be used in a system having a differential interferometer which provides the appropriate path difference with a mirror on a piezoelectric transducer.

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