Time-resolved spectroscopy of evanescent-wave excited fluorescence
An experimental proof of principle system for making time-resolved spectrographic measurements of laser-induced fluorescence in organics undergoing shock wave loading has been developed. The source of excitation is a flashlamp-pump dye laser and the detector is a 0.2m spectrograph coupled to an Imacon 500 streak camera. The sample, in liquid solution, is excited in an evanescent-wave geometry, which results in only a very thin (approximately 1000A) layer of sample being excited. Excitation of such a thin layer is required to obtain high time resolution in samples undergoing shock wave loading, which is the intended application for this technique. Optical time resolution of 100 psec has been achieved, and shorter time scales appear within easy reach.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6888833
- Report Number(s):
- SAND-84-0389C; CONF-840872-2; ON: DE84015213
- Resource Relation:
- Conference: SPIE annual technical symposium, San Diego, CA, USA, 19 Aug 1984
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
74 ATOMIC AND MOLECULAR PHYSICS
LASER SPECTROSCOPY
EQUIPMENT
ORGANIC COMPOUNDS
SHOCK WAVES
DYE LASERS
ELECTRONIC STRUCTURE
FLUORESCENCE
STREAK PHOTOGRAPHY
TIME RESOLUTION
LASERS
LIQUID LASERS
LUMINESCENCE
PHOTOGRAPHY
RESOLUTION
SPECTROSCOPY
TIMING PROPERTIES
440300* - Miscellaneous Instruments- (-1989)
400300 - Organic Chemistry- (-1987)
640302 - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory