title: Single-shot stand-off chemical identification of powders using random Raman lasing.
abstract: The task of identifying explosives, hazardous chemicals, and biological materials from a safe distance is the subject we consider. Much of the prior work on stand-off spectroscopy using light has been devoted to generating a backward-propagating beam of light that can be used drive further spectroscopic processes. The discovery of random lasing and, more recently, random Raman lasing provide a mechanism for remotely generating copious amounts of chemically specific Raman scattered light. The bright nature of random Raman lasing renders directionality unnecessary, allowing for the detection and identification of chemicals from large distances in real time. In this article, the single-shot remote identification of chemicals at kilometer-scale distances is experimentally demonstrated using random Raman lasing.
authors.affiliation: Texas A&M University, College Station, TX 77843;
authors.forename: Brett H
authors.initials: BH
authors.lastname: Hokr
authors.affiliation: Texas A&M University, College Station, TX 77843; 711th Human Performance Wing, Human Effectiveness Directorate, Bioeffects Division, Optical Radiation Branch, Joint Base San Antonio, Fort Sam Houston, TX 78234;
authors.forename: Joel N
authors.initials: JN
authors.lastname: Bixler
authors.affiliation: TASC, Inc., San Antonio, TX 78228;
authors.forename: Gary D
authors.initials: GD
authors.lastname: Noojin
authors.affiliation: 711th Human Performance Wing, Human Effectiveness Directorate, Bioeffects Division, Optical Radiation Branch, Joint Base San Antonio, Fort Sam Houston, TX 78234;
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Thomas
authors.affiliation: 711th Human Performance Wing, Human Effectiveness Directorate, Bioeffects Division, Optical Radiation Branch, Joint Base San Antonio, Fort Sam Houston, TX 78234;
authors.forename: Benjamin A
authors.initials: BA
authors.lastname: Rockwell
authors.affiliation: Texas A&M University, College Station, TX 77843;
authors.forename: Vladislav V
authors.initials: VV
authors.lastname: Yakovlev
authors.affiliation: Texas A&M University, College Station, TX 77843; Princeton University, Princeton, NJ 08540; and Baylor University, Waco, TX 76706 scully@tamu.edu.
authors.forename: Marlan O
authors.initials: MO
authors.lastname: Scully
mesh_terms: D001672:Biocompatible Materials / Q000032:analysis; D002623:Chemistry Techniques, Analytical / Q000295:instrumentation / Q000379:methods; D053834:Explosive Agents / Q000032:analysis; D015386:Hazardous Substances / Q000032:analysis; D006801:Humans; D007834:Lasers; D011208:Powders / Q000032:analysis*; D058998:Remote Sensing Technology / Q000295:instrumentation / Q000379:methods*; D013059:Spectrum Analysis, Raman / Q000295:instrumentation / Q000379:methods*
chemical_list: D001672:Biocompatible Materials; D053834:Explosive Agents; D015386:Hazardous Substances; D011208:Powders
keywords: Raman spectroscopy; remote sensing; stand-off detection; stimulated Raman scattering
references.citation: Proc Natl Acad Sci U S A. 2002 Aug 20;99(17):10994-1001
references.pmid: 12177405
references.citation: Proc Natl Acad Sci U S A. 2005 May 31;102(22):7806-11
references.pmid: 15911763
references.citation: Biometrika. 1947;34(1-2):28-35
references.pmid: 20287819
references.citation: Opt Express. 2013 May 20;21(10):11757-62
references.pmid: 23736397
references.citation: Science. 2011 Jan 28;331(6016):442-5
references.pmid: 21273482
references.citation: Nature. 2005 Feb 17;433(7027):725-8
references.pmid: 15716948
references.citation: Proc Natl Acad Sci U S A. 2008 Jan 15;105(2):422-7
references.pmid: 18184801
references.citation: Science. 2003 Jul 4;301(5629):61-4
references.pmid: 12843384
references.citation: Appl Spectrosc. 2004 May;58(5):591-7
references.pmid: 15165336
references.citation: Nature. 2005 Feb 24;433(7028):845-8
references.pmid: 15729336
references.citation: Phys Med Biol. 2000 Feb;45(2):R1-59
references.pmid: 10701500
references.citation: Opt Lett. 1990 Jul 1;15(13):746-8
references.pmid: 19768066
references.citation: Proc Natl Acad Sci U S A. 2012 Sep 18;109(38):15185-90
references.pmid: 22949687
references.citation: Proc Natl Acad Sci U S A. 2011 Feb 22;108(8):3130-4
references.pmid: 21297033
references.citation: Appl Spectrosc. 2003 Nov;57(11):1363-7
references.pmid: 14658149
references.citation: Appl Spectrosc. 2012 Nov;66(11):1279-85
references.pmid: 23146183
references.citation: Nature. 2005 Dec 1;438(7068):623-7
references.pmid: 16319882
references.citation: Science. 2008 May 2;320(5876):643-6
references.pmid: 18451297
references.citation: Anal Bioanal Chem. 2009 Sep;395(2):259-74
references.pmid: 19484226