Mid-wave infrared DIAL noise phenomenology

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LLNL has utilized optical parametric oscillator technology to develop and field a rapidly-tunable mid-wave infrared (MWIR) DIAL system. The system can be tuned at up to 1 KHz over the 3.3-3.8 micron spectral region, where hydrogen-bond stretching modes provide spectroscopic signatures for a wide variety of chemicals. We have fielded the DIAL system on the LLNL site with targets at horizontal ranges of up to 2 km. We have collected data on noise levels and correlations and their dependences on range, turbulence, and receiver aperture size. In this paper we describe some of the implications of this data for MWIR ... continued below

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10 p.

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Magnotta, F., Morris, J.R., Neuman, W.A., Scharlemann, E.T. July 23, 1997.

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LLNL has utilized optical parametric oscillator technology to develop and field a rapidly-tunable mid-wave infrared (MWIR) DIAL system. The system can be tuned at up to 1 KHz over the 3.3-3.8 micron spectral region, where hydrogen-bond stretching modes provide spectroscopic signatures for a wide variety of chemicals. We have fielded the DIAL system on the LLNL site with targets at horizontal ranges of up to 2 km. We have collected data on noise levels and correlations and their dependences on range, turbulence, and receiver aperture size. In this paper we describe some of the implications of this data for MWIR DIAL phenomenology. In particular, the interplay of turbulence and speckle to produce the observed noise fluctuations at short ranges (<500 m) is presented.

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10 p.

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OSTI as DE98050914

Other: FDE: PDF; PL:

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  • Annual meeting of the Society of Photo-Optical Instrumentation Engineers, San Diego, CA (United States), 27 Jul - 1 Aug 1997

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  • Other: DE98050914
  • Report No.: UCRL-JC--128151
  • Report No.: CONF-970706--
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 568039
  • Archival Resource Key: ark:/67531/metadc690828

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  • July 23, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • April 6, 2017, 6:27 p.m.

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Magnotta, F., Morris, J.R., Neuman, W.A., Scharlemann, E.T. Mid-wave infrared DIAL noise phenomenology, article, July 23, 1997; California. (digital.library.unt.edu/ark:/67531/metadc690828/: accessed August 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.