Zobrazeno 1 - 10 of 15 pro vyhledávání: '"A. D. Streater"'
1
Flux measurements of alkali atoms diffusing via multiple surface scattering in a silanated glass tube
Autor: Tyler Morgus, Alan D Streater, Michael A. Waxman
Publikováno v: Journal of Physics B: Atomic, Molecular and Optical Physics. 35:4125-4138
Alkali atoms that are diffusing away from a source via multiple surface scattering in a nonstick coated glass tube are monitored by laser fluorescence. Densities are measured by fluorescence intensity and weak-field absorption, and small asymmetries
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::476c68ddc0469bc9d2778bc9f4baa9ab
https://doi.org/10.1088/0953-4075/35/20/301
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2
Surface light-induced drift resulting from inelastic scattering
Autor: Alan D. Streater, Michael A. Vaksman
Publikováno v: Canadian Journal of Physics. 78:285-291
Surface light-induced drift (SLID) is known to give rise to an extremely sensitive method of studying the state-specificity of gas-surface interactions. SLID occurs under velocity-selective laser excitation of a resonant gas whenever the scattering,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::614a7b8274f84b177934f87137431d7d
https://doi.org/10.1139/p00-053
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3
Measurement of ratios of momentum-transport cross sections for potassium–rare-gases by nulling light-induced drift
Autor: A. D. Streater, T. C. Morgus, S. J. Rohn
Publikováno v: Physical Review A. 57:4983-4986
We report measured pressure ratios for mixtures of neon with other rare gases that lead to a cancellation of normal light-induced drift of potassium atoms excited on the ${D}_{1}$ line by a narrow-band laser. These data can provide a stringent test f
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bfc8c68c1cefb63c1b4e0802c456cdb7
https://doi.org/10.1103/physreva.57.4983
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5
Gain and coherence effects induced by strong cw-laser coupling in potassium–rare-gas mixtures
Autor: J. A. Kleinfeld, A. D. Streater
Publikováno v: Physical Review A. 53:1839-1853
We describe theoretical and experimental investigations of steady-state gain without population inversion that can occur on the ${\mathit{D}}_{1}$ transition of potassium, upon strong cw-laser excitation of the ${\mathit{D}}_{2}$ transition. A Raman-
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1945f86ec5bc3a83599cef5b402f5e51
https://doi.org/10.1103/physreva.53.1839
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6
Diffusion cross sections for potassium and levels in rare gases
Autor: F Yahyaei-Moayyed, A P Hickman, A D Streater
Publikováno v: Journal of Physics B: Atomic, Molecular and Optical Physics. 29:435-448
We have used a light-induced drift (LID) experiment to determine ratios of cross sections for diffusion of potassium in the excited , and the ground levels in five rare gases. The measured ratios are combined with the ground-state cross sections and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::42285769b8e441d484aa3c6918c92a6f
https://doi.org/10.1088/0953-4075/29/3/011
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7
Observation of gain due to coherence effects in a potassium-helium mixture
Autor: J. A. Kleinfeld, A. D. Streater
Publikováno v: Physical Review A. 49:R4301-R4304
We report steady-state gain due to coherence effects in a potassium-helium mixture, for strong pumping near the ${\mathit{D}}_{2}$ line and probing near the ${\mathit{D}}_{1}$ line. The absorption-gain spectra are in good agreement with a four-level
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1a0e24dd25bc033009553f8e58fcde1
https://doi.org/10.1103/physreva.49.r4301
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8
Momentum transport cross sections for excited and ground state potassium with rare gases by light-induced diffusive pulling
Autor: A D Streater, D T Mugglin
Publikováno v: Journal of Physics B: Atomic, Molecular and Optical Physics. 26:689-704
The authors have used the light-induced diffusive pulling (LDP) method to measure the ground state momentum transport cross sections and the relative difference of the excited and ground state cross sections with respect to the ground state for potas
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2bb9a607ffda8e6c55992b7fe9c0fb3f
https://doi.org/10.1088/0953-4075/26/4/010
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9
A laser preconditioning process for improving the laser damage threshold, and the search for subtle laser damage from long-duration laser exposure for IBS thin films
Autor: Dale C. Ness, Alan D. Streater
Publikováno v: SPIE Proceedings.
Laser damage testing of ion beam sputtered (IBS) films for 1064 nm, Q-switched, low repetition rate operation typically involves the measurement of small physical defects that can be detected visually or photographically. For this kind of damage the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::449defcd5a6066ab92252eb530fa44d7
https://doi.org/10.1117/12.753747
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10
A year of automated LDT testing on ion beam sputtered thin film optics and laser conditioning of IBS films
Autor: Thomas Bittancourt, Dale C. Ness, Alan D. Streater
Publikováno v: SPIE Proceedings.
The automated laser damage testing system at REO has been in operation for over a year, providing quantitative and detailed information on laser damage of ion beam sputtered (IBS) thin films in a production setting. Results have accumulated in a data
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::452c03c8c7417e00fb83aa2a03b17f3d
https://doi.org/10.1117/12.696020
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