Pulsed laser photothermal spectroscopy of liquids and solids: Progress report for period September 30, 1986-November 30, 1987

Technical Report · Sun Nov 01 04:00:00 EST 1987

OSTI ID:5553282

Eyring, E M

A new apparatus has been created that measures the lifetimes of radiationless decay processes in liquids on time scales dropping down to a few nanoseconds. The particular novelty of the instrument lies in its capability of accurately resolving the shape of pulsed laser generated photoacoustic signals in liquids thus permitting a detailed comparison with recently developed theoretical models for their shape. The use of poly(vinylidene difluoride) piezoelectric detectors in these experiments has been compared with photothermal beam deflection. The measurements have also been extended to the millisecond time scale by the inclusion of photothermal lens detection. A new study of luminescenie in rare earth salts with a variety of inorganic dopants has also been carried out. 9 refs., 6 figs.

• Research Organization: Utah Univ., Salt Lake City (USA)
• DOE Contract Number: FG02-84ER13227
• OSTI ID: 5553282
• Report Number(s): DOE/ER/13227-4; ON: DE88003839
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ALKALI METAL COMPOUNDS
CHALCOGENIDES
COMPLEXES
DE-EXCITATION
DIENES
DOCUMENT TYPES
DOPED MATERIALS
ELECTRICITY
EMISSION SPECTRA
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
EUROPIUM COMPOUNDS
FERROCENE
FLUIDS
FOURIER TRANSFORMATION
GAS LASERS
HELIUM-NEON LASERS
HYDROCARBONS
INFRARED SPECTROMETERS
INTEGRAL TRANSFORMATIONS
IRON COMPLEXES
LASERS
LIQUIDS
LUMINESCENCE
MATERIALS
MEASURING INSTRUMENTS
MOLYBDENUM COMPOUNDS
MOLYBDENUM OXIDES
NEODYMIUM LASERS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
PHOTOACOUSTIC EFFECT
PHOTOACOUSTIC SPECTROMETERS
PHOTOACOUSTIC SPECTROSCOPY
PHOTOLUMINESCENCE
PIEZOELECTRICITY
POLYENES
POLYMERS
POLYVINYLS
PROGRESS REPORT
PULSE TECHNIQUES
RADIATIONLESS DECAY
RARE EARTH COMPOUNDS
REFRACTORY METAL COMPOUNDS
SIGNALS
SODIUM COMPOUNDS
SOLID STATE LASERS
SOLIDS
SPECTRA
SPECTROMETERS
SPECTROSCOPY
TIME MEASUREMENT
TRANSFORMATIONS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS