Holographic filters for spectroscopic identification of...

Details Holographic filters for spectroscopic identification of... Holographic filters for spectroscopic identification of...

2005-08-23

2005-08-23

Robinson, Mark A. (Department: 2872)

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

C356S301000

Reexamination Certificate

active

06934060

ABSTRACT:
A method, system, and apparatus provide for the creation and use of a holographic filter. The holographic filter has multiple superpositioned holograms within a volume holographic medium. These superpositioned holograms synthesize a filter shape with multiple peaks at specified positions. The shape of the holographic filter matches a spectrum of a substance. The holographic filter may then be used (e.g., in a spectrometer) to simultaneously detect peaks in the spectrum of the matching substance.

REFERENCES:
patent: 5198911 (1993-03-01), Ning
patent: 5221957 (1993-06-01), Jannson et al.
patent: 6538775 (2003-03-01), Bowley et al.
patent: 2002/0196486 (2002-12-01), Ingwall et al.

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