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Linear and nonlinear spectroscopy at a cesium vapour/dielectric interface using a semiconductor laser

M.D. Gibb, Harold K. Haugen

Chemical Physics LettersJul 1, 19890 citations

The resonant coupling between cesium Rydberg atoms and dielectric surfaces and cavity QED experiments with the blackbody field

K. S. Lai

Nov 1, 19980 citations

Multiphoton evanescent wave spectroscopy and dynamics

Vladimir G Bordo, Horst‐Guenter Rubahn

Non-intrusive laser-spectroscopical methods for the diagnostics of the gas-surface interaction in the near-field of a dielectric surface have been developed both experimentally and theoretically. The techniques base on either two-photon evanescent wave excitation or combined evanescent-volume wave excitation. Spectra obtained for sodium atoms at a glass-vacuum interface are quantitatively reproduced by a rigorous theoretical approach. In the case of pure evanescent wave excitation the excitation conditions can be chosen such that either the velocity distribution of desorbing atoms is determined or that atom-surface interaction parameters (polarizability of the adsorbed atoms, desorption rate, sticking coefficient) are obtained from the Autler- Townes splitting of the two-photon lines. By the use of combined evanescent-volume wave excitation one is able to distinguish optically between different groups of atoms interacting with the surface and one can extract their two- dimensional velocity distributions. In addition, information is obtained about superelastic scattering of the atoms interacting with the dielectric substrate.Non-intrusive laser-spectroscopical methods for the diagnostics of the gas-surface interaction in the near-field of a dielectric surface have been developed both experimentally and theoretically. The techniques base on either two-photon evanescent wave excitation or combined evanescent-volume wave excitation. Spectra obtained for sodium atoms at a glass-vacuum interface are quantitatively reproduced by a rigorous theoretical approach. In the case of pure evanescent wave excitation the excitation conditions can be chosen such that either the velocity distribution of desorbing atoms is determined or that atom-surface interaction parameters (polarizability of the adsorbed atoms, desorption rate, sticking coefficient) are obtained from the Autler- Townes splitting of the two-photon lines. By the use of combined evanescent-volume wave excitation one is able to distinguish optically between different groups of atoms interacting with the surface and one can extract their two- dimensional velocity distributions. In addition, information is obtained about superelastic scattering of the atoms interacting with the dielectric substrate.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIEDec 5, 20010 citations

Laser-induced quantum adsorption of neutral atoms in dielectric surfaces

Thierry Passerat de Silans, B. Farias, Marcos Oriá +1 more

Applied Physics BNov 4, 200519 citations

Light-induced spin-polarized desorption of Rb atoms from Co surfaces

K. Asakawa, Naoki Tanabe, Oki Watanabe +4 more

We investigated the spin polarization of Rb atoms undergoing light-induced desorption from a spin-polarized Co (110) surface. Desorption of Rb atoms was induced via pulsed UV irradiation of the Rb-adsorbed Co surface. The number of desorbed atoms, their velocity distribution, and their spin polarization were measured via the absorption of circularly polarized light resonant with the desorbed Rb atoms. The results were analyzed in conjunction with density functional theory calculations, indicating that the desorbed Rb atoms were spin polarized. This was explained by a nonthermal desorption mechanism accompanying spin-polarized electron transfer between the Co surface and adsorbed Rb.We investigated the spin polarization of Rb atoms undergoing light-induced desorption from a spin-polarized Co (110) surface. Desorption of Rb atoms was induced via pulsed UV irradiation of the Rb-adsorbed Co surface. The number of desorbed atoms, their velocity distribution, and their spin polarization were measured via the absorption of circularly polarized light resonant with the desorbed Rb atoms. The results were analyzed in conjunction with density functional theory calculations, indicating that the desorbed Rb atoms were spin polarized. This was explained by a nonthermal desorption mechanism accompanying spin-polarized electron transfer between the Co surface and adsorbed Rb.

arXiv:2601.08442Physical review. B./Physical review. BJul 31, 20260 citations

Optical Absorption Spectra of Cesium Atoms in Rare-Gas Matrices

Teinosuke Kanda, Takeo Ebisu

Journal of the Physical Society of JapanSep 1, 19714 citations

Spectroscopy of cesium atoms adsorbing and desorbing at a dielectric surface

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