Zobrazeno 1 - 10
of 11
pro vyhledávání: '"J A, Gelbwachs"'
Autor:
Y C Chan, J A Gelbwachs
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 25:3601-3612
A complete systematic study of the broadening and shifting of the Sr resonance line (51P1-51S0) by collisions with all five rare gases has been conducted with a high-resolution laser-induced fluorescence method. The method enabled the authors to meas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83fb9c73076eb33e916eac7f56913dff
https://doi.org/10.1088/0953-4075/25/17/012
https://doi.org/10.1088/0953-4075/25/17/012
Publikováno v:
1996 IEEE Aerospace Applications Conference. Proceedings.
Remote optical sensing with lasers, known as lidar, has been shown to be a useful technique for civilian meteorological and environmental applications. Recently, the potential of lidar for addressing applications of interest to aerospace systems has
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7705c49437b1ce9d540e819539326c9b
https://doi.org/10.1109/aero.1996.495968
https://doi.org/10.1109/aero.1996.495968
Autor:
Y. C. Chan, J. A. Gelbwachs
Publikováno v:
Optical Society of America Annual Meeting.
The spectral lineshapes of the Sr (51P1–51P0) resonance transition perturbed by rare gases have been examined with a high-resolution laser-induced fluorescence method. In He and Ne, the collisional broadened spectral profiles are found to be symmet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1030174851301f79dafe51dc3b969ad
https://doi.org/10.1364/oam.1992.mkk6
https://doi.org/10.1364/oam.1992.mkk6
Autor:
F. E. Hovis, J. A. Gelbwachs
Publikováno v:
The Journal of Chemical Physics. 78:6680-6687
Collisional quenching of In(5p2 4P1/2) and In(6p 2P) by Ar, H2, D2, N2, and CH4 has been measured by laser pumping of the 5p2 4P1/2 level. The quenching cross sections for 5p2 4P1/2 range from 1.6×10−16 cm2 for Ar to 37×10−16 cm2 for H2. The cr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5755f3373d69def5d17810adf53eab24
https://doi.org/10.1063/1.444667
https://doi.org/10.1063/1.444667
Autor:
F. E. Hovis, J. A. Gelbwachs
Publikováno v:
Analytical Chemistry. 56:1392-1394
Barium has been detected at the 0.7 ng/mL level by laser-induced fluorescence of Ba/sup +/ in an N/sub 2/O/C/sub 2/H/sub 2/ flame. Excitation of a thermally populated 5d/sup 2/D state with a CW dye laser tuned to 614 nm leads to 455-nm emission back
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::184dc51e3ccc297f1e35b3896466179b
https://doi.org/10.1021/ac00272a042
https://doi.org/10.1021/ac00272a042
Autor:
G. L. Loper, J. A. Gelbwachs
Publikováno v:
Atmospheric Transmission.
The CO2 laser photoacoustic technique has been used to measure 002 laser absorption spectra of water vapor/air mixtures containing various water vapor partial pressures at selected temperatures down to 10°C. At CO2 laser wavelengths where water vapo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00deb22d0d43174b2f4eeff5a15b81c8
https://doi.org/10.1117/12.931900
https://doi.org/10.1117/12.931900
Described are the results of a laboratory study of the weak water-continuum absorption within the 8- to 12-micrometer atmospheric transmission window. The highly sensitive photoacoustic detection technique was used in conjunction with a line-tunable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92446effe2e72823d4d24abe3eebe094
https://doi.org/10.21236/ada141962
https://doi.org/10.21236/ada141962
Publikováno v:
Applied optics. 22(23)
Water continuum CO2 laser absorption spectra are reported for temperatures between 27 and -10 degrees C. The continuum is found to possess a negative temperature coefficient. The results obtained suggest that the magnitude of this temperature coeffic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::973427d63a6fa8ea0c93515f978f1541
https://pubmed.ncbi.nlm.nih.gov/18200254
https://pubmed.ncbi.nlm.nih.gov/18200254
Autor:
J. A. Gelbwachs
Publikováno v:
Laser Spectroscopy VIII ISBN: 9783662151662
The atomic resonance filter is an isotropic, wide field-of-view, incoherent, survivable device with an ultranarrow optical bandwidth, namely, ~0.01A in the visible. These properties make it ideal for the detection of a weak laser signal against a con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48d903a13c7e8d3e1a42a99a4e810d13
https://doi.org/10.1007/978-3-540-47973-4_130
https://doi.org/10.1007/978-3-540-47973-4_130
This report describes recent work performed at The Aerospace Corporation to determine the capability of the CO2 laser photoacoustic technique to detect the rocket fuels hydrazine, monomethylhydrazine (MMH), and unsymmetrical dimethylhydrazine (UDMH)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5c561af8bdbf01a7c0ff6f2f4e759ff
https://doi.org/10.21236/ada112950
https://doi.org/10.21236/ada112950