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Transient Simulation of Absorption Machines
Journal of Solar Energy Engineering, 1982This paper presents a model for a water-cooled Lithium-Bromide/water absorption chiller and predicts its transient response both during the start-up phase and during the shutoff period. The simulation model incorporates such influencing factors as the thermodynamic properties of the working fluid, the absorbent, the heat-transfer configuration of ...
D. K. Anand, R. W. Allen, B. Kumar
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Transient absorption of polydiacetylene molecules
The Journal of Chemical Physics, 1987During excitation with ultraviolet light, polydiacetylene crystals show a photoinduced absorption which is ascribed to a triplet excited state of the individual polymer chains. We have measured this absorption using partially and fully polymerized TS and FBS single crystals. The results of stationary and time-resolved experiments are discussed.
H. Sixl, R. Jost, R. Warta
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Confocal transient absorption microscope
Optical Society of America Annual Meeting, 1991Confocal laser scanning microscopes have been widely used in the 3-D measurement of surfaces and internal structures of samples. The absorption (transmission)-mode confocal microscope, however, has difficulty in the tomographic observation, because its 3-D optical transfer function is angularly band-limited, called the missing cone problem.
Keiji Sasaki +2 more
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Transient Absorption Spectra and Dynamics of InSe Nanoparticles
The Journal of Physical Chemistry B, 2006Time-resolved fluorescence and transient absorption results have been obtained for small (approximately 3 nm) and large (approximately 5-8 nm) InSe nanoparticles in room-temperature solutions. The large particles are nonfluorescent, indicating that the conduction band is at M and the optical transition is forbidden.
Shuming, Yang, David F, Kelley
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Transient anisotropy effects in the absorption saturation of GaAs
Journal of Luminescence, 1985Abstract The absorption of polarized light imparts a transient anisotropy on GaAs due to the preferential orientational excitation of electron-hole pairs. We present a series of experiments designed to measure the relaxation of the wavevector orientation of these photoexcited electron-hole pairs.
J.L. OUDAR +4 more
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Transient absorption by a Rydberg atom in a resonant cavity
Physical Review A, 1988A theoretical analysis is presented describing the interaction of the field in a high-Q microwave cavity with an atom that is suddenly excited to the lower of two Rydberg levels that are resonantly coupled by the field. It is found that the field initially in the cavity is canceled by interference with the source field emitted by the atom.
, Mallalieu, , Parker, , Stroud
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Absorption Changes and Decays of Transients in Irradiated Papain
International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine, 1974SummaryPulse-radiolysis studies of aqueous papain solutions have been made over the 50 µs to 0·40 s time-scale and the 300 to 500 nm wave-length range. For the intermediates formed from both e−aq and OH, the observed changes in optical density over the above time-scale are independent of papain concentration and dose per pulse.
J R, Clement +5 more
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The influence of molecular oxygen on transient absorption and transient photocurrent kinetics
Journal of Photochemistry and Photobiology A: Chemistry, 1997The transient absorption and transient photocurrent kinetics of photoinduced intermolecular electron transfer reactions in solution can show considerable discrepancies at different molecular oxygen concentrations. The lifetimes of the radical anions observed by transient absorption are decreased in the presence of oxygen, and this is explained by a ...
Markus von Raumer +2 more
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Transient molecular absorptions induced by the absorption of CO2 laser radiation
Optics Communications, 1976Abstract Laser-induced molecular absorptions are reported for the species SF 6 , CF 3 I, and CF 3 Br. Induced absorptions are observed at frequencies ∼ 40 cm -1 lower than that of a CO 2 TEA laser which is used to vibrationally excite the molecules in a low pressure cell.
A.B. Petersen, J. Tiee, C. Wittig
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Attosecond Transient Absorption in Molecular Hydrogen
CLEO: 2014, 2014Isolated attosecond pulses are used to probe laser-perturbed hydrogen molecules using attosecond absorption spectroscopy. We observe dynamic features in the delay-dependent absorption on both the electronic and nuclear timescales for the first time.
Cheng, Yan +4 more
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