Note : Rotational Raman scattering on CO2 using a volume Bragg grating as a notch filter

B.L.M. Klarenaar, F.K. Brehmer, S. Welzel, H.J. Meiden, van der, M.C.M. Sanden, van de, R.A.H. Engeln

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Uittreksel

We present a novel approach for filtering Rayleigh scattering and stray light from Raman scattering in a gas discharge, using a volume Bragg grating as a notch filter. For low frequency rotational Raman contributions, it is essential to filter out Rayleigh scattering and stray light at the laser wavelength to be able to measure an undisturbed Raman spectrum. Using the Bragg grating, having an optical density of 3.1 at the central wavelength of 532 nm and a full width at half maximum of 7 cm-1, we were able to measure a nearly full rotational CO2 spectrum (1.56 cm-1 peak-to-peak separation). The rotational temperature in a CO2 discharge was determined with an accuracy of 2%.
Originele taal-2Engels
Pagina's (van-tot)04106-1/4
Aantal pagina's5
TijdschriftReview of Scientific Instruments
Volume86
DOI's
StatusGepubliceerd - 2015

Vingerafdruk

Stray light
Rayleigh scattering
Bragg gratings
Notch filters
notches
Raman scattering
Raman spectra
filters
Wavelength
Density (optical)
optical density
rotational spectra
gas discharges
Full width at half maximum
wavelengths
Discharge (fluid mechanics)
low frequencies
Lasers
Gases
lasers

Citeer dit

Klarenaar, B.L.M. ; Brehmer, F.K. ; Welzel, S. ; Meiden, van der, H.J. ; Sanden, van de, M.C.M. ; Engeln, R.A.H. / Note : Rotational Raman scattering on CO2 using a volume Bragg grating as a notch filter. In: Review of Scientific Instruments. 2015 ; Vol. 86. blz. 04106-1/4.
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abstract = "We present a novel approach for filtering Rayleigh scattering and stray light from Raman scattering in a gas discharge, using a volume Bragg grating as a notch filter. For low frequency rotational Raman contributions, it is essential to filter out Rayleigh scattering and stray light at the laser wavelength to be able to measure an undisturbed Raman spectrum. Using the Bragg grating, having an optical density of 3.1 at the central wavelength of 532 nm and a full width at half maximum of 7 cm-1, we were able to measure a nearly full rotational CO2 spectrum (1.56 cm-1 peak-to-peak separation). The rotational temperature in a CO2 discharge was determined with an accuracy of 2{\%}.",
author = "B.L.M. Klarenaar and F.K. Brehmer and S. Welzel and {Meiden, van der}, H.J. and {Sanden, van de}, M.C.M. and R.A.H. Engeln",
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Note : Rotational Raman scattering on CO2 using a volume Bragg grating as a notch filter. / Klarenaar, B.L.M.; Brehmer, F.K.; Welzel, S.; Meiden, van der, H.J.; Sanden, van de, M.C.M.; Engeln, R.A.H.

In: Review of Scientific Instruments, Vol. 86, 2015, blz. 04106-1/4.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

TY - JOUR

T1 - Note : Rotational Raman scattering on CO2 using a volume Bragg grating as a notch filter

AU - Klarenaar, B.L.M.

AU - Brehmer, F.K.

AU - Welzel, S.

AU - Meiden, van der, H.J.

AU - Sanden, van de, M.C.M.

AU - Engeln, R.A.H.

PY - 2015

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AB - We present a novel approach for filtering Rayleigh scattering and stray light from Raman scattering in a gas discharge, using a volume Bragg grating as a notch filter. For low frequency rotational Raman contributions, it is essential to filter out Rayleigh scattering and stray light at the laser wavelength to be able to measure an undisturbed Raman spectrum. Using the Bragg grating, having an optical density of 3.1 at the central wavelength of 532 nm and a full width at half maximum of 7 cm-1, we were able to measure a nearly full rotational CO2 spectrum (1.56 cm-1 peak-to-peak separation). The rotational temperature in a CO2 discharge was determined with an accuracy of 2%.

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DO - 10.1063/1.4918730

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SP - 04106-1/4

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

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