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US 2013/0258343 A1Published application
Method and apparatus to improve signal-to-noise ratio of ft-ir spectrometers using pulsed light source
AssigneeAgilent Technologies, Inc.
InventorsMiao ZHU, Robert C. TABER
Life of this patent
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Abstract
An optical spectroscopy method and apparatus increases signal to noise ratio of detected signals. Sample light passed through a sample includes attenuated light pulses and characteristic light located between the attenuated light pulses, the characteristic light formed by interaction between light pulses incident the sample and sample molecules. The attenuated light pulses are substantially removed from the sample light emerging from the sample prior to detection, to increase signal to noise ratio of the detected signal.
Claims30
A method comprising:
- passing light pulses through a sample to provide sample light, the sample light comprising attenuated light pulses, and characteristic light formed by interaction between the light pulses and sample molecules, wherein the characteristic light is located between the attenuated light pulses;
- substantially removing the attenuated light pulses from the sample light;
- and
- detecting the characteristic light from the sample light after removing the attenuated light pulses.
1 more element
An optical spectrometer comprising:
- an optical component configured to receive sample light comprising attenuated light pulses, and characteristic light formed by interaction between light pulses incident on a sample and sample molecules, wherein the characteristic light is located between the attenuated light pulses, the optical component further configured to substantially remove the attenuated light pulses from the sample light;
- and
- a detector configured to detect the characteristic light from the sample light after removal of the attenuated light pulses.
Dependencies are inferred from the claim text.