Patents Assigned to Micron Optical Systems
  • Patent number: 6373567
    Abstract: A compact dispersive near-IR Raman spectrometer is disclosed. The Raman spectrometer consists of a diode pumped solid state (DPSS) laser emitting light at 1064 nm and an InGaAs diode array detector. The DPSS laser is used as an excitation source for stimulating Raman scattering of the sample being analyzed. The Raman signal is collected and filtered to remove the DPSS laser Rayleigh scatter. The collected and filtered Raman signal is dispersed using a volume holographic grating. The dispersed Raman signal is detected using a linear InGaAs diode array detector that is sensitive to light in the wavelength region 900-1700 nm. The dispersive near-IR Raman spectrometer is rugged and compact and enables the collection of high signal-to-noise Raman spectra with high wavelength stability and without the presence of interfering fluorescent backgrounds.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: April 16, 2002
    Assignee: Micron Optical Systems
    Inventors: Kent Lawson Wise, John Brittain Cooper, Christian Lee Schoen