1
Charles Sperry
Jacob Grun, Charles K Manka, Jeffrey H Bowles, Michael R Corson, Jay F Sperry: Method and apparatus for identifying a substance using a spectral library database. The United States of America represented by the Secretary of the Navy, John J Karasek, L George Legg, October 14, 2008: US07436510 (17 worldwide citation)

A spectroscopic detector for identifying the presence of a first substance in the presence of another substance includes a laser for illuminating the substances at a plurality of wavelengths to induce the emission of radiation characteristic of the substance; a spectrometer for measuring the emitted ...


2
Richard A Van Wagenen, Jeffrey D Geisler, Donald E Gregonis, Dennis L Coleman: Multi-channel molecular gas analysis by laser-activated Raman light scattering. Albion Instruments, Knobbe Martens Olson & Bear, November 15, 1988: US04784486 (159 worldwide citation)

The concentration of multiple polyatomic gases are determined simultaneously by Raman light scattering. The gas sample is placed in a sampling cell and a polarized laser beam is passed through the cell, along a longitudinal axis. A portion of the light scattered by the gas sample is captured and det ...


3
John F Maguire: Remote spectroscopy for raman and brillouin scattering. Southwest Research Institute, Baker & Botts, November 16, 1993: US05262644 (152 worldwide citation)

An apparatus and method for performing Raman and Brillouin spectroscopy remotely. A near-infrared laser is used to irradiate a sample of material to be analyzed. Optical fibers transmit incident radiation from a near-infrared radiation source to the sample, and transmit Raman and Brillouin scattered ...


4
Ann E Grow: Raman optrode processes and devices for detection of chemicals and microorganisms. Beehler & Pavitt, February 2, 1999: US05866430 (149 worldwide citation)

A methodology and devices for detecting or monitoring or identifying chemical or microbial analytes are described. The methodology comprises four basic steps: (1) The gas or liquid medium to be monitored or analyzed is brought into contact with a bioconcentrator which is used to bind with or collect ...


5
Stephen R Quake: High resolution scanning raman microscope. California Institute of Technology, Fish & Richardson P C, December 14, 1999: US06002471 (125 worldwide citation)

A method of obtaining high-resolution spectroscopic information from a scanning microscope. An optical beam is directed at a sample and light emitted from the sample (e.g., from Raman scattering or fluorescence) is collected. Resolution is improved by supporting a tiny conductive element (e.g., a si ...


6
Kenji Tochigi, Yoshiaki Hanyu, Yutaka Hiratsuka: Laser Raman microprobe. Hitachi, Antonelli Terry & Wands, May 6, 1986: US04586819 (120 worldwide citation)

A laser Raman microprobe separates a laser beam reflected by a sample and a Raman scattered light generated by the sample by a filter which transmits or reflects a light in a predetermined wavelength region including a wavelength region of the reflected laser beam and applies only the Raman scattere ...


7
Steven Adler Golden, Neil Goldstein, Fritz Bien: Gas species monitor system. Spectral Sciences, Joseph S Iandiorio, September 4, 1990: US04953976 (119 worldwide citation)

A gas species monitor system includes a sample volume for receiving a gas to be monitored; an external, independent laser source; means for directing the laser radiation to the volume; a multipass optical cell, responsive to the means for directing, for multiplying the laser radiation intensity in t ...


8
John S Batchelder, Philip C D Hobbs, Marc A Taubenblatt: Apparatus and a method for high numerical aperture microscopic examination of materials. International Business Machines Corporation, Ratner & Prestia, June 15, 1993: US05220403 (117 worldwide citation)

Apparatus and a method for performing high resolution optical imaging in the near infrared of internal features of semiconductor wafers uses an optical device made from a material having a high index of refraction and held in very close proximity to the wafer. The optical device may either be a pris ...


9
Scott D Miles: Gas analysis system having buffer gas inputs to protect associated optical elements. BOC Health Care, Dennis Epperson, Roger M Rathbun, Larry R Cassett, October 6, 1992: US05153671 (115 worldwide citation)

A gas analysis cell positioned within an optical resonant cavity in a gas analysis system is disclosed wherein the cell includes a flow of buffer gas which forms a "dam", thereby protecting the optical elements in the analysis system. The analysis cell includes an inlet for introducing a gas sample ...


10
Richard J Pittaro, Tad D Simons: Method for calibrating a spectrograph for gaseous samples. Hewlett Packard Company, August 23, 1994: US05341206 (112 worldwide citation)

A method for field calibrating a system adapted for spectrographic analysis of gaseous substances. The method uses an easily available gas, for example ambient air, thereby providing for field calibration of the system without the inconvenience of using a purified noble gas and a pre-measured calibr ...