Results 201 to 210 of about 77,555 (230)

Measurement of luminescence in coral skeletons

Journal of Experimental Marine Biology and Ecology, 2003
Luminescent lines in skeletons of the massive coral Porites record periods when seawater was significantly diluted by land runoff. Records developed from such lines would be useful in a wide range of areas, including climatology, oceanography, civil engineering, agriculture, water resources and reef management.
David Barnes, R.B. Taylor, Janice M. Lough   +2 more
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Femtosecond luminescence measurements in GaAs

Solid State Communications, 1986
Abstract We report luminescence measurements in GaAs with femtosecond time resolution. This represents more than an order-of-magnitude improvement over previous luminescence measurements and allows us to study initial relaxation processes of photoexcited carriers.
A. C. Gossard, Dominique Block, Jagdeep Shah   +2 more
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Time-resolved measurements of luminescence

Journal of Luminescence, 2013
Abstract Luminescence sensing and imaging has become more widespread in recent years in a variety of industries including the biomedical and environmental fields. Measurements of luminescence lifetime hold inherent advantages over intensity-based response measurements, and advances in both technology and methods have enabled their use in a broader ...
Michael J. McShane, Bradley B. Collier
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Luminescent thermometry for aerodynamic measurements

Review of Scientific Instruments, 1994
A luminescent temperature sensitive paint containing the molecule rhodamine B base in a silicone polymer paint has been developed that utilizes video imaging detection to produce temperature maps of an entire surface from luminescence intensity measurements.
Martin Gouterman, Jean Gallery, Gamal Khalil, James B. Callis, Blair McLachlan, James F. Bell   +5 more
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Reflection measurements for luminescent powders

Physica B: Condensed Matter, 2018
Abstract Luminescent materials are useful in applications varying from lighting and display technologies to document security features and medical research, amongst many others. Measurement of the excitation range is an important consideration, and absorption bands are often determined from a decrease in the measured diffuse reflectance of the ...
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On the measurement of luminescence excitation spectra

Journal of Luminescence, 1974
Abstract A method is presented for the unique determination of excitation spectra for non-linear luminescence, assuming only that the non-linearity occurs subsequent to absorption.
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Luminescence and photoacoustic measurements of LiAl5O8: Fe3+

Journal of Luminescence, 1988
Abstract It is presented a revision of optical band assignments of Fe3+-doped lithium aluminate. Luminescence, excitation and photoacoustic measurements were done on powder samples of the ordered phase of the material.
F. de Souza Barros, T. Abritta
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Bayesian analysis of luminescence measurements

Radiation Measurements, 2015
Abstract The age equation sets luminescence dating as a method of absolute dating. However, it is also characterized by the introduction of a large number of uncertainties. To assess these uncertainties, we decided to proceed under a Bayesian approach.
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Measurement of Short Luminescence Decay Times

Applied Optics, 1967
The stroboscopic technique for measuring luminescence decay times and for time-resolved spectroscopy can be greatly simplified by using a photomultiplier which has a control mesh behind the photocathode. This makes it possible to cut off the tube output by applying a negative bias of 1-2 V to the mesh; then the tube can be gated on for short periods by
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Polarization effects in the measurement of luminescence yields

The Journal of Chemical Physics, 1977
It is shown how the formula ordinarily used to compute the quantum yield of luminescence relative to that of a ’’standard’’ substance should be changed in order to take account of polarization effects in the excitation monochrometer and emission spectrometer, as well as nonzero emission anistropy of the emitting systems. A simplification results in a ’’
A. Findeisen, J. A. Poole
openaire   +2 more sources