Laser Optogalvanic Spectroscopy: Experimental Details and Potential Applications in R and D
Laser Optogalvanic Spectroscopy (LOGS) is an extremely sensitive detection technique based on the 'Optogalvanic Effect'. The impedance change of gaseous discharge following the absorption of resonant laser light by the discharge species has proved to be a powerful spectroscopic tool to inv...
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Published in | Defense science journal Vol. 44; no. 4; pp. 279 - 293 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
New Delhi
Defence Scientific Information & Documentation Centre
01.01.1994
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Abstract | Laser Optogalvanic Spectroscopy (LOGS) is an extremely sensitive detection technique based on the 'Optogalvanic Effect'. The impedance change of gaseous discharge following the absorption of resonant laser light by the discharge species has proved to be a powerful spectroscopic tool to investigate all kinds of matter in vapour phase in discharge plasmas and flames. LOGS does not require any optical detector and the signal-to-noise ratios are often greater than 10/sup 3/. The advent of tunable lasers has pushed LOGS as a unique detection technique, efficient over a wide frequency spectrum from UV through visible to IR. As a simple and most sensitive detection technique, LOGS can have diverse practical applications in science and technology. The experimental details with different discharge excitations and the potential applications of LOGS are briefly described. Some prominent practical applications like wavelength calibration, laser linewidth determination, trace element detection, isotope analysis, material characterisation, laser frequency and power stabilisation, Rydberg atom spectroscopy and combustion and plasma diagnostics are briefly discussed. |
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AbstractList | Laser Optogalvanic Spectroscopy (LOGS) is an extremely sensitive detection technique based on the 'Optogalvanic Effect'. The impedance change of gaseous discharge following the absorption of resonant laser light by the discharge species has proved to be a powerful spectroscopic tool to investigate all kinds of matter in vapour phase in discharge plasmas and flames. LOGS does not require any optical detector and the signal-to-noise ratios are often greater than 10/sup 3/. The advent of tunable lasers has pushed LOGS as a unique detection technique, efficient over a wide frequency spectrum from UV through visible to IR. As a simple and most sensitive detection technique, LOGS can have diverse practical applications in science and technology. The experimental details with different discharge excitations and the potential applications of LOGS are briefly described. Some prominent practical applications like wavelength calibration, laser linewidth determination, trace element detection, isotope analysis, material characterisation, laser frequency and power stabilisation, Rydberg atom spectroscopy and combustion and plasma diagnostics are briefly discussed. |
Author | Reddy, M.N. |
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CitedBy_id | crossref_primary_10_1088_1361_6404_aa5a8e crossref_primary_10_1088_1748_0221_17_12_C12009 crossref_primary_10_1016_j_optcom_2015_05_048 crossref_primary_10_1063_1_4935217 crossref_primary_10_1088_1748_0221_11_01_C01079 |
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Copyright | Copyright Defence Scientific Information & Documentation Centre Jul 1994 |
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Title | Laser Optogalvanic Spectroscopy: Experimental Details and Potential Applications in R and D |
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