Fiber-optic apparatus and method for measurement of luminescence and Raman scattering
A dual fiber forward scattering optrode for Raman spectroscopy with the remote ends of the fibers in opposed, spaced relationship to each other to form a analyte sampling space therebetween and the method of measuring Raman spectra utilizing same are described. One optical fiber is for sending an exciting signal to the remote sampling space and, at its remote end, has a collimating microlens and an optical filter for filtering out background emissions generated in the fiber. The other optical fiber is for collecting the Raman scattering signal at the remote sampling space and, at its remote end, has a collimating microlens and an optical filter to prevent the exciting signal from the exciting fiber from entering the collection fiber and to thereby prevent the generation of background emissions in the collecting fiber.
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- Patent Number(s):
- US 5194913; A
- Application Number:
- PPN: US 7-672335
- OSTI ID:
- 6260679
- Resource Relation:
- Patent File Date: 20 Mar 1991
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
47 OTHER INSTRUMENTATION
MATERIALS
RAMAN SPECTROSCOPY
SPECTROMETERS
DESIGN
LUMINESCENCE
OPERATION
OPTICAL FIBERS
OPTICAL FILTERS
SAMPLERS
SCATTERING
EQUIPMENT
FIBERS
FILTERS
LASER SPECTROSCOPY
MEASURING INSTRUMENTS
SPECTROSCOPY
400102* - Chemical & Spectral Procedures
440800 - Miscellaneous Instrumentation- (1990-)