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특허 상세정보

Raman spectrometer

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01N-021/65    G02B-005/22   
미국특허분류(USC) 356/301 ; 359/885 ; 372/032
출원번호 US-0312439 (1994-09-26)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Arnold, White & Durkee
인용정보 피인용 횟수 : 48  인용 특허 : 0
초록

An improved Raman spectrometer is provided, having, in a preferred embodiment, a light source comprising an injection-locked laser diode array, a multipass cell to multiply the intensity of the light source, a dynamic gas sample focusing system, and an atomic vapor filter to remove the Rayleigh scattered light. The laser diode arrays are tuned to match an absorption band of the atomic vapor filter. The Raman scattered light passes virtually unattenuated through the filter to be recorded by a Fourier transform spectrometer or other spectrometer. This inve...

대표
청구항

[ We claim:] [1.] An improved Raman spectrometer for analyzing a sample, comprising:a spectrometer for producing a spectrogram of light directed into an entrance of said spectrometer;a plurality of substantially monochromatic light sources having a predetermined frequency, the light sources reflecting multiple times in a multipass cell and positioned to illuminate said sample placed in a target region;collection optics for collecting light scattered by the sample when the sample is illuminated by said monochromatic light sources, and for directing a coll...

이 특허를 인용한 특허 피인용횟수: 48

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  2. Sommer Edward J. ; Rich John T.. Application of Raman spectroscopy to identification and sorting of post-consumer plastics for recycling. USP2001116313423.
  3. Pohl, Ken; King, Matthew; Hopkins, Adam J.; Ford, Alan. Background removal from Raman spectra by an intracavity active-tuning element for a laser. USP2018029905990.
  4. Donald Danylyk. Bioenergy instrument. USP2002096443975.
  5. Clark, Stephan R.; Monroe, Michael G.; Valencia, Melinda M.; Kearl, Daniel A.. Color detector. USP2012128330955.
  6. Clark, Stephan R.; VanBrocklin, Andrew L.; Dahlgren, Brett E.. Color detector having area scaled photodetectors. USP2012118319969.
  7. Fink, Manfred; Varghese, Philip. Compact Raman analyzer for recording dissolved gases in liquids with high sensitivity and spectral resolution. USP2013028373855.
  8. Fink, Manfred F.; Varghese, Philip L.. Detecting isotopes and determining isotope ratios using raman spectroscopy. USP2004086778269.
  9. Antunovich, Jason J.; Hamfeldt, Arthur T.; Woods, Rodney J.; Shum, Sam C.. Determining percent solids in suspension using Raman spectroscopy. USP2017049625390.
  10. Antunovich, Jason J.; Hamfeldt, Arthur T.; Woods, Rodney J.; Shum, Sam C.. Determining percent solids in suspension using Raman spectroscopy. USP2016079389185.
  11. Antunovich, Jason J.; Hamfeldt, Arthur T.; Woods, Rodney J.; Shum, Sam C.. Determining percent solids in suspension using raman spectroscopy. USP2015099140651.
  12. Berlin, Andrew Arthur; Gerth, Christopher Marc; Koo, Tae-Woong. Devices and methods for dual excitation Raman spectroscopy. USP2013088513002.
  13. Berlin, Andrew Arthur; Gerth, Christopher Marc; Koo, Tae-Woong. Devices and methods for dual excitation Raman spectroscopy. USP2011088009288.
  14. Krupke,William F.. Diode pumped alkali-molecular lasers and amplifiers. USP2006127145931.
  15. Miles Richard B. ; Lempert Walter R. ; Finkelstein Noah. Dispersive atomic vapor raman filter. USP2001106307626.
  16. Lewis, E. Neil. Dual-mode characterization of particulates. USP2017119816922.
  17. Muller, David; Marshall, John; Friedman, Marc D.. Eye therapy system. USP2016119498642.
  18. Krainak Michael A. ; Duerksen Gary L.. Fiber grating coupled light source capable of tunable, single frequency operation. USP2001026188705.
  19. Sogard, Michael R.. Gaseous extreme-ultraviolet spectral purity filters and optical systems comprising same. USP2009107598508.
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  25. Sharma, Rachit; Mitra, Chayan; Tilak, Vinayak. Methods and systems to analyze a gas-mixture. USP20181010094781.
  26. Jensen Brian J. ; Cooper John B. ; Wise Kent L.. Modulated Fourier Transform Raman fiber-optic spectroscopy. USP2000056061134.
  27. Bukshtab, Michael A.; Friedman, Marc D.. Multipass virtually imaged phased array etalon. USP20181010114205.
  28. Keller, Lutz; Feitisch, Alfred; Scott, Peter; Schrempel, Mathias; St. John, Nathan. Optical reflectors for spectrometer gas cells. USP2014098842282.
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  31. Messerchmidt, Robert G.. Peri-critical reflection spectroscopy devices, systems, and methods. USP2015059041923.
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  33. Maguire John Francis ; Busbee John David ; Liptak David Charles ; Lubbers David Peter ; LeClair Steven R. ; Biggers Rand Robert. Process control for pulsed laser deposition using raman spectroscopy. USP2000036038525.
  34. Smith, Malcolm C.. Spheroid sample cell for spectrometer. USP2015069052232.
  35. Berlin, Andrew Arthur; Gerth, Christopher Marc; Koo, Tae-Woong. Stimulated and coherent anti-stokes raman spectroscopic methods for the detection of molecules. USP2012018088628.
  36. Fink, Manfred; Varghese, Philip; Borysow, Jacek. Superior analyzer for raman spectra with high acceptance cone, resolution, transmission, and quantum efficiency, and strong background reduction. USP2013028384894.
  37. John Francis Maguire ; John David Busbee ; Steven R. LeClair. Surface flaw detection using spatial raman-based imaging. USP2002096453264.
  38. Hefti, John; Peng, Hong. System and method for detecting and identifying molecular events in a test sample using a resonant test structure. USP2003076586946.
  39. Hammond John M. ; Cai Jian ; Evans Kent J. ; Matta John G. ; Dunham Robert F. ; Errico Mario ; Cady Julie A. ; Petropoulos Mark C. ; Pietrzykowski ; Jr. Stanley J. ; Thomas Mark S.. System using on-line liquid characterization apparatus. USP2001026195443.
  40. Friedman, Marc D.; Kamaev, Pavel; Sherr, Evan; Eddington, William; Rood-Ojalvo, Sara; Muller, David. Systems and methods for corneal cross-linking with pulsed light. USP2017079707126.
  41. Friedman, Marc D.; Muller, David; Paranjape, Amit. Systems and methods for determining biomechanical properties of the eye for applying treatment. USP2016119498122.
  42. Friedman, Marc D.; Muller, David; Paranjape, Amit. Systems and methods for determining biomechanical properties of the eye for applying treatment. USP2016119498114.
  43. Friedman, Marc D.. Systems and methods for monitoring cross-linking activity for corneal treatments. USP20180710028657.
  44. Friedman, Marc D.; Kamaev, Pavel; Muller, David; Pertaub, Radha; Scharf, Ronald; Sherr, Evan; Usher, David. Systems and methods for monitoring time based photo active agent delivery or photo active marker presence. USP2015049020580.
  45. Friedman, Marc D.; Kamaev, Pavel; Muller, David; Pertaub, Radha; Scharf, Ronald; Sherr, Evan; Usher, David. Systems and methods for monitoring time based photo active agent delivery or photo active marker presence. USP20181110137239.
  46. Friedman, Marc D.; Smirnov, Mikhail; Kamaev, Pavel. Systems and methods for photoactivating a photosensitizer applied to an eye. USP20190410258809.
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