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Sökning: L773:9783642400025 OR L773:9783642400032

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1.
  • Axner, Ove, 1957-, et al. (författare)
  • NICE-OHMS – frequency modulation cavity-enhanced spectroscopy : principles and performance
  • 2014
  • Ingår i: Cavity-Enhanced Spectroscopy and Sensing. - Berlin : Springer Berlin/Heidelberg. - 9783642400025 - 9783642400032 ; , s. 221-251
  • Bokkapitel (refereegranskat)abstract
    • Noise-immune cavity-enhanced optical heterodyne molecular spectroscopy (NICE-OHMS) is a sensitive technique for detection of molecular species in gas phase. It is based on a combination of frequency modulation for reduction of noise and cavity enhancement for prolongation of the interaction length between the light and a sample. It is capable of both Doppler-broadened and sub-Doppler detection with absorption sensitivity down to the 10−12 and 10−14 Hz−1/2 cm−1 range, respectively. This chapter provides a thorough description of the basic principles and the performance of the technique.
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2.
  • Masłowski, P., et al. (författare)
  • Cavity-enhanced direct frequency comb spectroscopy
  • 2014
  • Ingår i: Cavity-enhanced spectroscopy and sensing. - Berlin, Heidelberg : Springer. - 9783642400025 - 9783662510797 - 9783642400032 ; , s. 271-321
  • Bokkapitel (refereegranskat)abstract
    • In less than fifteen years since the development of the first optical frequency comb (OFC), the device has revolutionized numerous research fields. In spectroscopy, the unique properties of the OFC spectrum enable simultaneous acquisition of broadband spectra while also providing high spectral resolution. Due to the regular structure of its spectrum, an OFC can be efficiently coupled to an optical enhancement cavity, resulting in vastly increased effective interaction length with the sample and absorption sensitivities as low as 1.3×10-11 cm-1 Hz-1/2 per spectral element. This technique, called cavity-enhanced direct frequency comb spectroscopy (CE-DFCS), provides ultra-sensitive absorption measurements simultaneously over a wide spectral range and with acquisition times shorter than a second. This chapter introduces the main ideas behind CE-DFCS including properties of various comb sources, methods of coupling and locking the OFC to the enhancement cavity, and schemes for broadband, simultaneous detection. Examples of experimental implementations are given, and a survey of applications taking advantage of the rapid, massively parallel acquisition is presented. 
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  • Resultat 1-2 av 2
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Foltynowicz, Aleksan ... (2)
Ye, J. (1)
Axner, Ove, 1957- (1)
Silander, Isak, 1980 ... (1)
Ehlers, Patrick, 198 ... (1)
Wang, Junyang (1)
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Maslowski, P. (1)
Cossel, K.C. (1)
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