Apparatus and method for reducing interference in an optical spectroscopy probe having a collimated sample beam
AssigneeTornado Spectral Systems Inc.
InventorBradford B. Behr
Life of this patent
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Abstract
Various embodiments are provided herein for an optical spectroscopy probe which generally includes a probe head having optical elements for coupling to an excitation fiber for receiving laser energy therefrom and generating a collimated excitation light beam; and a sample optic adjacent to the probe head, the sample optic having at least one optical element with two non-parallel surfaces to receive the collimated excitation light beam, to transmit the collimated excitation light beam to a sample, and to collect at least one afocal returning scattered light beam that is reflected from the sample.
Claims18
An optical spectroscopy probe comprising:
- a probe head having optical elements for coupling to an excitation fiber for receiving laser energy therefrom and generating a collimated excitation light beam;
- and
- a sample optic adjacent to the probe head, the sample optic having at least one optical element with two non-parallel surfaces to receive the collimated excitation light beam, to transmit an afocal excitation light beam to a sample, and to collect at least one afocal returning scattered light beam that is reflected from the sample.
An optical spectroscopy probe comprising:
- a probe head having optical elements for coupling to an excitation fiber for receiving laser energy therefrom and generating a collimated excitation light beam;
- and
- a sample optic adjacent to the probe head, the sample optic having at least one optical element that is adapted to receive the collimated excitation light beam, to transmit an afocal excitation light beam to a sample, and to collect at least one afocal returning scattered light beam that is reflected from the sample,
- wherein the at least one optical element has two non-parallel surfaces that are arranged so that portions of the collimated excitation light beam or the at least one afocal returning scattered light beam that are internally reflected by both surfaces will be tilted at an angle or plurality of angles relative to the collimated excitation light beam or the at least one afocal returning scattered light beam, respectively.
Dependencies are inferred from the claim text.