Optics: measuring and testing – Of light reflection
Reexamination Certificate
2005-07-28
2010-11-30
Chowdhury, Tarifur (Department: 2886)
Optics: measuring and testing
Of light reflection
Reexamination Certificate
active
07843570
ABSTRACT:
A substance adsorption detection method and a sensor utilizing amounts of change in the optical characteristic of a sensitive thin film with respect to the adsorbed amount of a substance to be detected. A clad4, a core5, and a thin film7for detecting an adsorbed substance are sequentially stacked on a crystal oscillator10to constitute an optical waveguide layer12and a gas adsorption member11. An incoming light prism8and an outgoing light prism9are provided on the surface of the core5. Changes in the adsorbed mass of the target substance and in the optical characteristic involved can be detected accurately and simultaneously by utilizing a change in outgoing light originating from a change in propagation loss and a change in the oscillation characteristic of the oscillator10, both caused by adsorption of the target substance on the core surface.
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Kaneko Futao
Kato Keizo
Kawakami Takahiro
Ohdaira Yasuo
Shinbo Kazunari
Boyle Fredrickson , S.C.
Chowdhury Tarifur
LaPage Michael
Niigata University
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