Particle Formation by Resonant Laser Light in Alkali-Metal Vapor

Tam, A. C.; Moe, George; Happer, W.

doi:10.1103/physrevlett.35.1630

Cited by 144 publications

(63 citation statements)

References 11 publications

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“…In 1976 Tam and Happer [5] observed the formation of small CsH crystals through laser excitation of Cs atoms in the presence of H z. Since then many experiments have * Stiftungsgastprofessor of the Stifterverband fiir die deutsche Wissenschaft studied the CsH X 1S + ground state and its dissociation energy, as well as the Cs + H2 reaction (e.g.…”

Section: Introductionmentioning

confidence: 99%

Ab initio MRD CI calculations on the cesium hydride (CsH) molecule

Carnell

Peyerimhoff

Heß

1989

Z Phys D - Atoms, Molecules and Clusters

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Ab initio multi-reference configuration interaction (MRD CI) calculations were carried out for the potential energy curves of the first 17 electronic states of the CsH molecule up to large bond distances (20 bohr). The aS+ states were also calculated by means of relativistic all-electron SCF and CI using the spin-free no-pair operator with external field projectors. For the low-lying states, the spectroscopic parameters were determined. Dipole moments as well as the transition dipole moments: # ( X ' S +~ A ~ Z+), #(X 1 Z + B ~ Z+), # ( A ~ S + ~ B ~ S+), were also calculated. Non-relativistic and relativistic results are compared. An analysis of the interactions in the 1,3S+ states is also proposed.

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Section: Introductionmentioning

confidence: 99%

Ab initio MRD CI calculations on the cesium hydride (CsH) molecule

Carnell

Peyerimhoff

Heß

1989

Z Phys D - Atoms, Molecules and Clusters

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“…Also contributing to the output power drop at higher temperatures is the possible increase in the rate of chemical reactions between Cs vapor and Ethane buffer gas. The products of these reactions (soot and cesium hydrate) create additional losses for the laser light because of absorption and light scattering which has been observed in previous works [8,[27][28][29].…”

Section: −1mentioning

confidence: 72%

“…This heat consequently flows out to the cell walls (cell diameter is 2.5 cm). From the thermal conductivity of the buffer gas, the temperature difference between the cell center and the cell walls in a steady state regime can be found from the steady state heat equation [27]:…”

Section: −1mentioning

confidence: 99%

Alkali lasers for magnetic resonance imaging

Zhdanov

Knize

2010

Open Physics

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Abstract:Spin-polarized nuclei of such gases as 3 He and 129 Xe are successfully used for magnetic resonance imaging of lungs and other organs of human body. To produce large numbers of spin-polarized nuclei required for this medical application, a high power narrowband tunable laser source is required. Diode pumped alkali lasers, developed during last several years can be an ideal source for this application. In this paper we present our latest achievements in diode pumped alkali lasers development. We describe optically pumped Cs laser tunable in the range of 14 GHz and operating in single transverse mode with a linewidth less than 3 MHz. We also present continuous wave diode pumped Rb and Cs lasers with output power 17 W and 20 W.

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“…The first to observe an influence of the laser on nucleation was Tam et al [7]. They worked on vapors of Cesium with small amounts of hydrogen, and observed that upon irradiation by a laser, some particles appeared, which he identified as cesium-hydride crystals.…”

Section: External Fieldsmentioning

confidence: 98%