Detecting laser-induced fluorescence emissions

Details Detecting laser-induced fluorescence emissions Detecting laser-induced fluorescence emissions

2005-09-30

2009-10-27

Geisel, Kara E (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

With sample excitation

Reexamination Certificate

active

07609379

ABSTRACT:
A system for detecting a chemical element within a material including at least one laser emission means for ionizing part of the material to generate fluorescence; at least one transmitting Bragg grating that filters the wavelength corresponding to the deexcitation wavelength of the element; and at least one photodiode that detects a line corresponding to the filtering wavelength, wherein the at least one Bragg grating is mobile to vary the filtering wavelength.

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