Comment on “Simultaneous in situ measurements and diurnal variations of NO, NO2, O3, jNO2, CH4, H2O and CO2in the 40 to 26 km region using an open path tunable diode laser spectrometer” by Christopher R. Webster and Randy D. May

1989 ◽  
Vol 94 (D12) ◽  
pp. 14991-14991
Author(s):  
H. K. Roscoe
Keyword(s):  
Diode Laser ◽  
In Situ Measurements ◽  
Diurnal Variations ◽  
Tunable Diode Laser ◽  
Laser Spectrometer ◽  
Diode Laser Spectrometer ◽  
Open Path

scholarly journals A simulation process of tunable open path diode laser spectrometer to detect a carbon monoxide gas in NIR region

2022 ◽  
Vol 961 (1) ◽  
pp. 012081
Author(s):  
Ruaa Kahtan Mahmood ◽  
Samira Adnan Mehdi
Keyword(s):  
Carbon Monoxide ◽  
Diode Laser ◽  
Near Infrared ◽  
Second Harmonic ◽  
Wave Length ◽  
Tunable Diode Laser ◽  
Theoretical Research ◽  
Laser Spectrometer ◽  
Diode Laser Spectrometer ◽  
Open Path

Abstract By modifying the wavelength of the open path tunable diode laser spectrometer (TDLS) in the near infrared region, theoretical research was implemented to improve the detection limit of carbon monoxide gas. To adjust the correct wavelength in the NIR area, MatLab code was created. Following that, frequency domain measurements were performed in order to extract the second harmonic as an indicator of gas presence. According to the results, the correct wave length in the NIR area is (1584.877 nm), and the lowest limit of CO gas concentration is (0.012 ppb).

In situ stratospheric measurements of CH4,13CH4, N2O, and OC18O using the Bliss tunable diode laser spectrometer

1992 ◽  
Vol 19 (1) ◽  
pp. 45-48 ◽  
Author(s):  
Christopher R. Webster ◽  
Randy D. May
Keyword(s):  
Diode Laser ◽  
Tunable Diode Laser ◽  
Laser Spectrometer ◽  
Diode Laser Spectrometer

In situ measurement of stratospheric nitric oxide using a balloon-borne tunable diode laser spectrometer

1984 ◽  
Vol 23 (8) ◽  
pp. 1140 ◽  
Author(s):  
Christopher R. Webster ◽  
Robert T. Menzies
Keyword(s):  
Nitric Oxide ◽  
Diode Laser ◽  
In Situ Measurement ◽  
Tunable Diode Laser ◽  
Laser Spectrometer ◽  
Diode Laser Spectrometer

Kalman filtering of tunable diode laser spectrometer absorbance measurements

1994 ◽  
Vol 33 (24) ◽  
pp. 5506 ◽  
Author(s):  
Haris Riris ◽  
Clinton B. Carlisle ◽  
Russell E. Warren
Keyword(s):  
Diode Laser ◽  
Kalman Filtering ◽  
Tunable Diode Laser ◽  
Laser Spectrometer ◽  
Diode Laser Spectrometer

Lunar multichannel diode laser spectrometer DLS-L for in-situ study of samples pyrolytically evolved from regolith onboard Luna-27 mission

2021 ◽  
Author(s):  
Viacheslav Meshcherinov ◽  
Imant Vinogradov ◽  
Mikhail Gerasimov ◽  
Viktor Kazakov ◽  
Maxim Spiridonov ◽  
...  
Keyword(s):  
Diode Laser ◽  
Laser Spectrometer ◽  
In Situ Study ◽  
Diode Laser Spectrometer

HHigh Resolution Spectroscopy Using a Stabilized Diode Laser: the 2υ9 Band of HNO3

1988 ◽  
Vol 43 (5) ◽  
pp. 402-406 ◽  
Author(s):  
Thomas Giesen ◽  
M. Harter ◽  
R. Schieder ◽  
G. Winnewisser ◽  
K.M.T. Yamada
Keyword(s):  
High Resolution ◽  
Spectral Data ◽  
Internal Rotation ◽  
Diode Laser ◽  
Tunable Diode Laser ◽  
Fermi Resonance ◽  
High Resolution Spectrum ◽  
Laser Spectrometer ◽  
Diode Laser Spectrometer ◽  
Stabilization Technique

The high resolution spectrum of the 2 υ9 band of HNO3 has been recorded by a tunable diode laser spectrometer with a newly developed frequency stabilization technique. The spectral data were digitally stored and processed by a dedicated micro-computer in order to improve the sensitivity and the precision of the measurements. In addition to the anomalies due to the Fermi resonance with the υ5 = 1 state, we have observed the line doubling caused by the internal rotation of the OH group.

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