Flexible transducers for photon tunneling microscopes and method

Details Flexible transducers for photon tunneling microscopes and method Flexible transducers for photon tunneling microscopes and method

1992-11-25

1994-09-20

Rosenberger, Richard A.

Optics: measuring and testing

By polarized light examination

With light attenuation

356371, G01N 2117

Patent

active

053494431

ABSTRACT:
A flexible transducer for use in a photon tunneling microscope apparatus, the transducer comprising an optically transmissive body having a totally internally reflecting (TIR) surface therein and a second surface plano-parallel to the TIR surface when the TIR surface and the second surface are in an unstressed state, the second surface comprising a combination light energy entrance surface and light energy exit surface, the TIR surface being oriented such that light energy introduced at the second surface within the critical angle normally is reflected totally from the interior of the TIR surface to the second surface. A light pattern of variable intensity emerges from the second surface as a result of frustration of total internal reflection at the TIR surface occuring as the TIR surface is brought sufficiently proximate a sample surface. The flexible transducer and the TIR surface thereof are arranged and adapted to be brought into optical contact with, and to conform to, varied macrophotography configurations of the sample surface. The disclosure further relates to methods for making and using the flexible transducer.

REFERENCES:
patent: 3627991 (1971-12-01), Beall
patent: 4120585 (1978-10-01), De Palma et al.
patent: 4681451 (1987-07-01), Guerra et al.

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