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Irradiation of cleaved KI single crystals with photons near the bulk absorption threshold between 5.1 and 6.0 eV produces hyper-thermal I( 2 P 3/2 ) emission with a minor thermal component, and with little spin orbit excited I( 2 P 1/2 ) emission. The I-atom kinetic energy distribution may be tuned by choice of photon energy indicating that control...
We have used the pump-probe technique to measure the photostimulated positive-ion yield, as a function of time delay, between two ultraviolet laser pulses. We find that the ion yield from 265nm femtosecond-irradiated MgO and LiF depends critically on the laser pulse delay in two-pulse correlation experiments. For example, single-pulse excitation of MgO produces a variety of ions including Mg +...
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