Studies of laser induced cesium and rubidium hydride formation in vapor cells and their application for isotope separation

Cesium (Cs) particle formation based on a laser photochemical reaction with a self-injection-seeded Ti:sapphire laser for Cs isotope separation

“…Both 7D and 7P states have sufficient energy for one-step reaction with hydrogen molecules to form CsH. In the previous study using a diode laser with the Cs(7P) excitation state, onestep excitation to form CsH was impossible, another excitation step was required to form the excited hydrogen molecule, H 2 * [10]. This one-step reaction between the…”

“…Laser-chemical isotope separation is one of the promising methods for isotope separation [9], and the application to rubidium isotope separation has been reported [10]. At least one study has applied laserchemical isotope separation to Cs separation [11,12].…”

Properties of a Pulsed Ti:Sapphire Laser Oscillator with an Extended Standing-Wave Cavity

“…A pulsed Ti:sapphire laser is suitable here, since it is tunable over a wide wavelength region, and it has a relatively large energy density compared with a diode laser. The excitation laser needs to have a linewidth sufficiently narrower than the isotope shift for selective photoionization or photoinduced chemical reaction, 5) if a separation method based on the polarization selection rule 6) or the Doppler shift effect 7) is not applicable. A self-seeded grazing incidence cavity (GIC) geometry with a pair of diffraction gratings 8,9) allows the Ti:sapphire oscillator to have a stable single-longitudinal-mode (SLM) operation with a low pump threshold energy.…”

Properties of a Pulsed Ti:Sapphire Laser Oscillator with an Extended Standing-Wave Cavity

“…The excitation laser needs to have a linewidth sufficiently narrower than the isotope shift for selective photoionization or photoinduced chemical reaction, 5) if a separation method based on the polarization selection rule 6) or the Doppler shift effect 7) is not applicable.…”