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The underlying terahertz vibrational spectrum of explosives solids

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3 Author(s)
Melinger, J.S. ; Naval Research Laboratory, Electronics Science and Technology Division, Code 6812, Washington, DC 20375, USA ; Laman, N. ; Grischkowsky, D.

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.2949068 

Using waveguide terahertz time-domain spectroscopy, we demonstrate the measurement of the underlying terahertz vibrational spectrum of the explosive solids hexahydro-1,3,5-trinitro-1,3,5-triazine, and 2,4,6-trinitrotoluene. Each explosive is cast as a polycrystalline thin film with planar ordering on the inner surface of metal parallel plate waveguide. For measurements near 10 K, each explosive reveals a complex spectrum of approximately 20 vibrational modes between 0.5 and 3.5 THz. The explosive films are of sufficient quality to produce vibrational linewidths as much as an order of magnitude sharper compared to conventional terahertz measurements of corresponding pellet samples of explosives.

Published in:

Applied Physics Letters  (Volume:93 ,  Issue: 1 )

Date of Publication:

Jul 2008

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