Single-pulse, broad-band coherent anti-Stokes Raman spectroscopy of nitromethane within a diamond anvil cell
- Lawrence Livermore National Lab., CA (USA)
The single-pulse, broad-band coherent anti-Stokes Raman spectrum of nitromethane in the region of the 920-cm{sup {minus}1} C-N stretching mode generated within the confines of a diamond anvil cell is reported. A signal-to-noise factor of near 50 is observed from a 3.5-{mu}J, 532-nm pulse combined with a 1.5-{mu}J, 300-cm{sup {minus}1}-wide Stokes laser pulse from a broad-band dye laser. An estimate of the anti-Stokes/Stokes conversion efficiency is calculated to be 5.5 {times} 10{sup {minus}5} and compared with an observed values of 2.1 {times} 10{sup {minus}5}, demonstrating a large enhancement over spontaneous Raman spectroscopy. The nonresonant background from the diamonds is shown to be negligible under the focal conditions used.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5447316
- Journal Information:
- Journal of Physical Chemistry; (USA), Vol. 93:2; ISSN 0022-3654
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
NITROMETHANE
RAMAN SPECTROSCOPY
EXPERIMENTAL DATA
EXPLOSIONS
NEODYMIUM LASERS
PULSE TECHNIQUES
PULSED IRRADIATION
RESONANCE SCATTERING
VERY HIGH PRESSURE
CHEMICAL EXPLOSIVES
DATA
EXPLOSIVES
INELASTIC SCATTERING
INFORMATION
IRRADIATION
LASER SPECTROSCOPY
LASERS
NITRO COMPOUNDS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
SCATTERING
SOLID STATE LASERS
SPECTROSCOPY
400201* - Chemical & Physicochemical Properties
400500 - Photochemistry
450100 - Military Technology
Weaponry
& National Defense- Chemical Explosions & Explosives