Cavity enhanced absorption spectroscopy of carbon dioxide using a DFB diode laser and a swept optical cavity

• Autorzy: Xin P. S. , Ming G. X. , Ping C. F. , Wei H. , Jie S. , Yong Y. , Jun Z. W.
• Języki publikacji: EN

Abstrakty

EN

A compact DFB tunable diode laser operating around 1.572um was used to study the cavity enhanced absorption spectroscopy of carbon dioxide near 1.572 um. It was experimentally demonstrated that a narrow-band continuous wave laser could be used in combination with a high-finesse optically stable cavity to perform highly sensitive direct absorption spectroscopy using ideas from the field of cavity ring down spectroscopy in a simple experimental setup. Laser radiation was coupled into optical cavity via accidental coincidences of laser frequency with one ofmultitude modes of the cavity. Absorption spectrum of carbon dioxide was obtained, the absorption signals were extracted from the measurement recording only the highest light intensity that leaked out of the optical cavity. A wavemeter was used to record accurate frequency of the laser. An absorption sensitivity of about 3.39x10^{-7cm-1 has been achieved.}

Słowa kluczowe

EN

spectroscopy; cavity enhanced absorption spectroscopy (CEAS); carbon dioxide

PL

spektroskopia; dwutlenek węgla

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2004
• Tom: Vol. 34, nr 4
• Strony: 589--595
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Xin P. S.

• The Environment Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China

autor

Ming G. X.

• The Environment Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China

autor

Ping C. F.

• The Environment Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China

autor

Wei H.

• The Environment Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China

autor

Jie S.

• The Environment Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China

autor

Yong Y.

• The Environment Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China

autor

Jun Z. W.

• The Environment Spectroscopy Laboratory, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China

Bibliografia

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