Pound-Drever-Hall-locked, frequency-stabilized cavity ring-down spectrometer

Cygan, A.; Lisak, D.; Masłowski, Piotr; Bielska, Katarzyna; Wójtewicz, Szymon; Domysławska, J.; Trawiński, R. S.; Ciuryło, R.; Abe, Hisashi; Hodges, Joseph T.

doi:10.1063/1.3595680

Cited by 95 publications

(67 citation statements)

References 55 publications

(60 reference statements)

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“…1. The first is the PDH-locked FS-CRDS used for probing the P7 P7 transition [11,20]. The second one is the optical atomic clock which provides the optical frequency reference [12,13].…”

Section: Experimental Apparatusmentioning

confidence: 99%

Absolute frequency determination of molecular transition in the Doppler regime at kHz level of accuracy

Bielska

Wójtewicz

Morzynski

et al. 2017

Journal of Quantitative Spectroscopy and Radiative Transfer

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We measured absolute frequency of the unperturbed P7 P7 O2 B-band transition ν0 = 434783.5084857(82) GHz and the collisional self-shift coefficient δ = −9.381(62) × 10 −21 GHz/(molecule/cm 3 ). With Doppler-limited spectroscopy we achieved the relative standard uncertainty of 2 × 10 −11 on line position, typical for Doppler-free techniques. Shapes of the spectral line were measured with a Pound-Drever-Hall-locked frequency-stabilized cavity ring-down spectrometer referenced to an 88 Sr optical atomic clock via an optical frequency comb.

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“…1. The first is the PDH-locked FS-CRDS used for probing the P7 P7 transition [11,20]. The second one is the optical atomic clock which provides the optical frequency reference [12,13].…”

Section: Experimental Apparatusmentioning

confidence: 99%

Absolute frequency determination of molecular transition in the Doppler regime at kHz level of accuracy

Bielska

Wójtewicz

Morzynski

et al. 2017

Journal of Quantitative Spectroscopy and Radiative Transfer

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“…Our recent progress in CRDS [21,22] allowed to increase signal-to-noise ratio of absorption axis of the spectrum to 10 4 level [21]. At this point a factor that limits precision of line shape measurements is stability of the frequency axis which is as good as the reference laser to which the ring-down cavity is locked (currently a HeNe laser with frequency stability of 1 MHz).…”

Section: Discussionmentioning

confidence: 99%

“…Its broad and precise tunability will allow to use it for spectroscopy with sub kHz resolution. Moreover, the laser system can serve to stabilize a frequency axis for our cavity-enhanced molecular spectroscopy experiments [21,22].…”

Section: Introductionmentioning

confidence: 99%

Ultra-Narrow Laser for Optical Frequency Reference

Lisak¹,

Cygan²,

Bielska³

et al. 2012

Acta Phys. Pol. A

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We present ultra-narrow line width, tunable diode laser system which will be used as a local oscillator in an optical atomic clock and for precision spectroscopy of Sr near 689 nm. Design of the high nesse optical cavity used as short-term frequency reference is optimized with respect to insensitivity to vibrations. We achieved laser line width of about 8 Hz, measured by comparison of two identical systems. The relative phase lock of two lasers is better than 150 mHz. Laser tunability and usefulness for precison spectroscopy were demonstrated through line shape measurement of a 20 kHz wide resonance of the optical cavity.

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“…However, the major disadvantage of this method is a strong dependence of the cavity mode frequency on mechanical instabilities causing fluctuations of the output signal [64]. Such disadvantages can be overcome using active stabilization of the cavity length [65,66], or can be minimized with the CEAS approach -cavity enhanced absorption spectroscopy [67].…”

Section: Cavity Ring-down Absorption Spectroscopy (Crds)mentioning

confidence: 99%

Detection of Gaseous Compounds with Different Techniques

Mikołajczyk

Bielecki

Stacewicz

et al. 2016

Metrology and Measurement Systems

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Sensing technology has been developed for detection of gases in some environmental, industrial, medical, and scientific applications. The main tasks of these works is to enhance performance of gas sensors taking into account their different applicability and scenarios of operation. This paper presents the descriptions, comparison and recent progress in some existing gas sensing technologies. Detailed introduction to optical sensing methods is presented. In a general way, other kinds of various sensors, such as catalytic, thermal conductivity, electrochemical, semiconductor and surface acoustic wave ones, are also presented. Furthermore, this paper focuses on performance of the optical method in detecting biomarkers in the exhaled air. There are discussed some examination results of the constructed devices. The devices operated on the basis of enhanced cavity and wavelength modulation spectroscopies. The experimental data used for analyzing applicability of these different sensing technologies in medical screening. Several suggestions related to future development are also discussed.

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Pound-Drever-Hall-locked, frequency-stabilized cavity ring-down spectrometer

Cited by 95 publications

References 55 publications

Absolute frequency determination of molecular transition in the Doppler regime at kHz level of accuracy

Absolute frequency determination of molecular transition in the Doppler regime at kHz level of accuracy

Ultra-Narrow Laser for Optical Frequency Reference

Detection of Gaseous Compounds with Different Techniques

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