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Title:
the optical dissociation in the air for remote detection -- and raging
Document Type and Number:
Japanese Patent JP6081456
Kind Code:
B2
Abstract:
Systems and methods for lasing molecular gases, and systems and methods of detecting molecular species are provided. The systems and methods can include the use of an excitation laser tuned to a wavelength associated with oxygen or nitrogen. The lasing can occur in both the forward and reverse directions relative to the excitation laser beam. Reverse lasing can provide a laser beam that propagates back toward the excitation laser source, and can provide a method for remote sampling of molecular species contained in the air. For example, systems and methods of detecting a molecular species of interest can be achieved by using the properties of the backward or forward propagating air laser to indicate a change in a pulse from the source of laser pulses caused by a modulation laser tuned to interact with the molecular species of interest.

Inventors:
Miles, Richard, Bee.
Dogariu, Arthur
Michael, James, Bee.
Application Number:
JP2014520288A
Publication Date:
February 15, 2017
Filing Date:
July 11, 2012
Export Citation:
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Assignee:
Trustees of Princeton University
International Classes:
H01S3/223; G01N21/63; G01N21/65; H01S3/00; H01S3/094; H01S3/10
Other References:
ARTHUR DOGARIU,REMOTE AIR LASING FOR TRACE DETECTION,PROCEEDINGS OF SPIE,2011年 5月13日,V8024,P80240H-1 - 80240H-8
PHILIP R. HEMMER,STANDOFF SPECTROSCOPY VIA REMOTE GENERATION OF A BACKWARD-PROPAGATING LASER BEAM,PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES,2011年 2月 4日,V108 N8,P3130-3134
MARCUS ALDEN,TWO-PHOTON-EXCITED STIMULATED EMISSION FROM ATOMIC OXYGEN IN FLAMES AND COLD GASES,OPTICS LETTERS,1989年 3月15日,V14 N6,P305-307
AGRUP SARA,TWO-PHOTON LASER-INDUCED FLUORESCENCE AND STIMULATED EMISSION MEASUREMENTS 以下備考,OPTICS COMMUNICATIONS,NL,NORTH-HOLLAND PUBLISHING CO.,1994年12月15日,V113 N1-3,P315-323,FROM OXYGEN ATOMS IN A HYDROGEN/OXYGEN FLAME WITH PICOSECOND RESOLUTION
Attorney, Agent or Firm:
Yusuke Hiraki
Sekiya Mitsuo
Toshiaki Watanabe
Hidekazu Matsumaru
Akira Yoshikawa