Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1996-10-28
1998-08-04
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250234, 250306, 385123, 385 12, G02B 626, G02B 2100
Patent
active
057897425
ABSTRACT:
A tapered probe tip for use in near-field scanning optical microscopy is coated with a sheath of metal material having a plasma frequency comparable to optical frequencies. Alternatively, the sheath material has lower energy plasmons. The preferred sheath material is silver. Other preferred sheath materials are potassium, Rb, cesium, tungsten oxide, sodium tungsten oxide and Re oxide.
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Feig Philip J.
Lee John R.
NEC Research Institute Inc.
Westin Edward P.
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