Abstract book - Prof. Per Jensen, Ph.D. - Bergische Universität ...

66 Poster session, D19Frequency-comb assisted cavity ring-down measurements of theoxygen B-band transition frequencies and pressure shiftsJ. Domysławska 1 , S. Wójtewicz 1 , D. Lisak 1 , A. Cygan 1 , F. Ozimek 2 , K. Stec 1 , K.Bielska 1 , P. Masłowski 1 , Cz. Radzewicz 2 , R. S. Trawiński 1 and R. Ciuryło 11 Instytut Fizyki, Uniwersytet Mikołaja Kopernika, ul. Grudziądzka 5/7, 87-100 Toruń,Poland; jolka@fizyka.umk.pl; 2 Wydział Fizyki, Uniwersytet Warszawski, ul. Hoża 69,00-681 Warszawa, PolandWe present the transition frequencies and pressure shifting of the weak B-band, R-branch lines of oxygen, measured with high resolution and accuracy. Our investigationswere performed using a Pound-Drever-Hall locked frequency-stabilized cavity ringdownspectrometer (PDH-locked FS-CRDS) described in papers 1-3 . This experimentalsetup provides high-resolution and a very high signal-to-noise ratio in the measuredspectra 4 . The CDR spectrometer was recently linked to an optical frequency comb(OFC) similarly as in 5-7 working in the visible region of spectrum. This upgrade allowsfor accurate determination of the absolute frequency of the CRD probe laser at eachpoint of the measured spectrum 8 .Our results were compared to data available in the literature. In order to achieve theaccuracy we report in the transition frequencies and collisional shifting coefficients, itwas necessary to take into account several subtle line-shape effects, such as speeddependenceof collisional broadening and shifting and Dicke narrowing.Domyslawska J.Wojtewicz S.Lisak D.Cygan A.Ozimek F.Stec K.Bielska K.Maslowski P.Radzewicz Cz.Trawinski R.S.Ciurylo R.The research is part of the program of the National Laboratory FAMO in Toruń, Polandand is supported by the Polish National Science Centre, Project No. DEC-2011/01/B/ST2/00491. The research was also supported by the Foundation for PolishScience TEAM Project co-financed by the EU European Regional Development Fund.References[1] A. Cygan, D. Lisak, P. Masłowski, K. Bielska, S. Wójtewicz, J. Domysławska, R.S. Trawiński, R. Ciuryło, H. Abe, J. T. Hodges, Rev. Sci. Instrum. 82, 063107 (2011)[2] A. Cygan, D. Lisak, S. Wójtewicz, J. Domysławska, R. S. Trawiński, R. Ciuryło,Meas. Sci. Technol. 22, 115303 (2011)[3] S. Wójtewicz, D. Lisak, A. Cygan, J. Domysławska, R. S. Trawiński, R. Ciuryło,Phys. Rev. A. 84, 032511 (2011)[4] A. Cygan, D. Lisak, S. Wójtewicz, J. Domysławska, J. T. Hodges, R. S. Trawiński,R. Ciuryło, Phys. Rev. A 85, 022508 (2012)[5] T. Udem, J. Reichert, R. Holzwarth, T. W. Hansch, Phys. Rev. Lett. 82, 3568 (1999)[6] D. Gatti, A. Gambetta, A. Castrillo, G. Galzerano, P. Laporta, L. Gianfrani, M.Marangoni, Opt. Express 19, 17520 (2011)[7] D. Mazzotti, P. Cancio, A. Castrillo, I. Galli, G. Giusfredi, P. De Natale, J. Opt. A:Pure Appl. Opt. 8, S490 (2006)[8] J. Domysławska, S. Wójtewicz, D. Lisak, A. Cygan, F. Ozimek, K. Stec, Cz.Radzewicz, R. S. Trawiński, R. Ciuryło, J. Chem. Phys. 136, 024201 (2012)