Collisional and radiative excitation transfers in Kr-Xe mixtures: Quenching of Kr

A Pulsed Source for Kr(5s[3/2]1) Resonance State Atoms Using Two-Photon-Driven Amplified Spontaneous Emission: Measurement of Quenching Rate Constants

“…Equation 1 only is valid if the resonance state is not quenched by collisions with the parent gas, and we can conclude that quenching of Kr(5s[3/2] 1 ) is negligible, relative to radiative decay, up to 20 Torr of Kr. This conclusion is in accord with rate constant values assigned to two- and three-body quenching processes of Kr(5s[3/2] 1 ) atoms. 6b, …”

“…The only remaining alternative is excitation transfer to the repulsive H 2 (a 3 Σ + ) state. The reaction of metastable Kr(5s[3/2] 2 ) atoms with N 2 gives mainly N 2 triplet state products (the B 3 Π g −A 3 Σ + u bands are easily observed) and perhaps some N atoms. 17c, We did not examine the emissions from the Kr(5s[3/2] 1 ) + N 2 reaction; however, Yu et al did not observe any N 2 * emission from the vac. UV to the visible range in this work .…”

Accurate Estimation of Carotid Luminal Surface Roughness Using Ultrasonic Radio-Frequency Echo

“…The same is expected for the 3 P 1,2 states, which are the precursors of the first excited molecular states that emit the broad-band radiation centred at 135 nm. The 1,3 P 1 states of Kr are populated either by absorption of the radiation emitted by the Ar dimers or by binary collisions with these dimers in a way similar to that proposed by Cook and Leichner [12] for the Kr-Xe mixture. The 3 P 0,2 states are not dipole-coupled to the ground state and thus they cannot absorb radiation.…”

“…The possibility of transferring energy from a lighter dimer to a heavier one with high efficiency opens up new possibilities of efficient excitation of these systems. The first observation of energy transfer was reported by Verkhovtseva et al [9] and spectroscopic and kinetic analyses of the argon-xenon and krypton-xenon mixtures have been reported by several groups [10][11][12][13]. In this paper excimer emissions from rare gases which are excited by a DC electrical discharge and expand from a nozzle into a vacuum are compared with emission spectra from a static gas target excited by a heavy-ion beam.…”

Stimulated emission of inert-gas excimers in the vacuum ultraviolet

“…A large number of papers are devoted to the study of the radiative and amplification features of an inert-gas plasma containing small amounts of xenon as an impurity. [24][25][26][27][28][29] It was shown that, along with efficient transport of the excitation energy to the xenon, the narrow-band radiation is amplified in a krypton-xenon plasma created by a dc discharge. 28,29 Discharge tubes of various lengths, fabricated from fused quartz and having magnesium fluoride windows (Fig.…”