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The F2 laser emission in Ne matrixes at 160.6 nm is reported for the first time. Its excitation spectrum in the 11-16 eV range has been recorded by means of tunable synchrotron radiation. Anomalous envelopes of vibrational progressions occurring in the gas ...
Permanent Bragg gratings in monomode optical fibers are obtained by irradiation through an interference pattern of an ultraviolet laser. The main parameters of such gratings, in particular the index modulation amplitude and their length, are precisely dete ...
The v' = 0-4 vibrational levels of the b4S- state of NO in Ar and Kr matrtixes were selectively excited in the near-IR by a tunable laser from the metastable a4P state previously populated by an ArF excimer laser. One of the decay channels of the b state i ...
A microscopic, theor., and exptl. description of an elementary solid state photoreaction, i.e. the dissocn. of a small mol. in a rare lattice is presented. The ingredients and results of mol. dynamics calcns. for the dissocn. of F2, Cl2, HI, and H2O mols. ...
The mechanical resistance of UV irradiated optical fibers has been investigated by dynamic fatigue tests. The intrinsic Weibull distribution of the pristine and chemically stripped fiber were almost identical. The high germanium doped fiber was homogeneous ...
The issue of mechanical resistance of optical fibers irradiated by UV laser sources has been recently reported. An important mechanical degradation as expressed by the decrease of median breaking strength and the widening of the Weibull distribution has be ...
Rydberg-Rydberg transitions are induced by absorption from the lowest Rydberg state of NO A 2S+ (3ss) in Ar matrixes, which is excited by an ArF laser at 193.3 nm. The depopulation of the A(v = 0) level to higher Rydberg states is probed by depletion of it ...
The evolution of the argon metastable states density has been studied by absorption spectroscopy in power-modulated plasmas of argon and a mixture of 4% silane in argon. A small concentration of silane suppresses the argon metastable states density by mole ...
A frequency calibration in the tuning range of the ArF excimer laser near 193 nm was performed. Different electronic spectra of NO were measured by laser-induced fluorescence in a cell and in an oxyacetylene flame. Spectra were measured with a frequency-do ...
Energy- and time-resolved IR emission spectra of NO trapped in Kr and Xe matrixes following excitation by an ArF laser were recorded. In Kr matrixes, the ground-state levels are predominantly populated by radiative decay from the a 4P state. The Xe matrixe ...