Tunable Diode-Laser Spectroscopy With Wavelength Modulation: A Calibration-Free Approach to the Recovery of Absolute Gas Absorption Line Shapes
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References
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"Tunable Diode-Laser Spectroscopy Wi..." refers background in this paper
..., from the HITRAN database [35]) to the measured absolute absorption-line function....
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624 citations
"Tunable Diode-Laser Spectroscopy Wi..." refers background or methods in this paper
...In practice, modulation indexes greater than unity are used to maximize the recovered signals, bringing all the consequences of more complex signal analysis [20]–[24], [28]....
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...on Fourier decomposition of the absorption-line function have been developed to deal with such large modulation indexes (m) [20]–[22], [24], [28] and later extensions take account of the effects of unwanted RAM signals [22], [28] and etalon fringes [24]....
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...TDLS with wavelength-modulation spectroscopy (WMS) enables ac detection at some frequency of choice and the use of a lockin amplifier for better signal recovery [7]–[12], [20]–[28]....
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473 citations
Additional excerpts
...[15] P. Werle, “A review of recent advances in semiconductor laser based gas monitors,” Spectrochim....
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...Furthermore, the laser and detector components developed for communications systems are fully compatible with single-mode optical fiber, and this has been exploited to remotely address multiplesensing points over single-mode optical-fiber networks [13], [14] (a useful review of work in the field prior to 1998 was published by Werle [15])....
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438 citations
378 citations
"Tunable Diode-Laser Spectroscopy Wi..." refers methods in this paper
...The technique was first developed using mid-infrared (IR) lasers [1]–[6] to address strong fundamental rotation/vibration absorption lines, but the...
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