Optical apparatuses using the near-field light

Details Optical apparatuses using the near-field light Optical apparatuses using the near-field light

2005-09-27

2005-09-27

Verbitsky, Gail (Department: 2859)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S234000, C250S306000, C359S321000, C359S738000

Reexamination Certificate

active

06949732

ABSTRACT:
Optical apparatuses are provided that use near-field light, where high spatial resolution and high sensitivity are made compatible. Highly intense near-field light is generated in a narrow area using localized plasmons that are produced in a metal pattern106in a shape that bears anisotropy and is made to irradiate a measured subject. The direction of polarization104of incident light103is modulated and signal light is subjected to synchronous detection, so that background light is removed and high sensitivity is achieved.

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