We describe a new sub-Doppler spectrometer with an enlarged gas cell, which was created at the IAP RAS for high-precision laboratory measurements of molecular transitions at millimeter and submillimeter wavelengths in the interests of radio astronomy. By using a larger diameter with a shortened cell length, a calibrated attenuator for radiation power adjustment, and synthesizers with lower phase noise, it was possible to eliminate a number of shortcomings of the previous spectrometer and not only to measure with high accuracy the transition frequencies of a number of molecules taking into account hyperfine splitting, but also to study their shifts due to both pressure and radiation power. In particular, information about precise frequencies will be used to examine the inner dynamics in the star-forming regions, and also to search for variations of fundamental constants. The principle of frequency-independent cell-aperture irradiation was employed when the optical scheme of the spectrometer was designed. The examples show Lamb-dip measurements of the hyperfine structure in the CH3CN and HNCO molecular lines.
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02 November 2022
A Correction to this paper has been published: https://doi.org/10.1007/s11141-022-10195-y
References
G. Cazzoli, C. Puzzarini, and A.V. Lapinov, Astrophys. J., 592, L95–L98 (2003). https://doi.org/10.1086/377527
G. Cazzoli, C. Puzzarini, and A.V. Lapinov, Astrophys. J., 611, 615–620 (2004). https://doi.org/10.1086/421992
A. V. Lapinov, Proc. SPIE, 6580, 658001 (2006). https://doi.org/10.1117/12.724761
F. J. Lovas, J. Phys. Chem. Ref. Data, 33, 177–355 (2004). https://doi.org/10.1063/1.1633275
V. S. Letokhov and V.P.Chebotaev, Ultra-High Resolution Nonlinear Laser Spectroscopy [in Russian], Nauka, Moscow (1990).
G.Yu.Golubyatnikov, S. P. Belov, I. I. Leonov, et al., Radiophys. Quantum Electron., 56, Nos. 8–9, 599–609 (2014). https://doi.org/10.1007/s11141-014-9464-2
G.Yu.Golubyatnikov, S. P. Belov, and I. I.Leonov, Radiophys. Quantum Electron., 58, No. 8, 622–631 (2015). https://doi.org/10.1007/s11141-016-9634-5
S.P. Belov, G.Yu.Golubiatnikov, A.V. Lapinov, et al., J. Chem. Phys., 145, No. 2, 024307 (2016). https://doi.org/10.1063/1.4954941
L.-H.Xu, J. T.Hougen, G.Yu. Golubiatnikov, et al., J. Mol. Spectrosc., 357, 11–23 (2019). https://doi.org/10.1016/j.jms.2018.12.003
G. Cazzoli and L.Dore, J. Mol. Spectrosc., 141, 49–58 (1990). https://doi.org/10.1016/0022-2852(90)90277-W
G. Winnewisser, S.P. Belov, Th.Klaus, and R. Schieder, J. Mol. Spectrosc., 184, 468–472 (1997). https://doi.org/10.1006/jmsp.1997.7341
G.Yu.Golubiatnikov, A.V. Lapinov, A. Guarnieri, and R.Knöchel, J. Mol. Spectrosc., 234, 190–194 (2005). https://doi.org/10.1016/j.jms.2005.08.012
E.A.Alekseev, V.V. Ilyushin, and A.A.Meshcheryakov, Radiophys. Radioastr ., 19, No. 4, 364–374 (2014). 10.15407/rpra19.04.364
L.-H.Xu, E. M.Reid, B.Guislain, et al., J. Mol. Spectrosc., 342, 116–124 (2017). https://doi.org/10.1016/j.jms.2017.06.008
J. Lamb, Optical Study for ALMA Receivers. ALMA Memo 359, North American ALMA Science Center, Charlottesville (2001).
I. Lapkin, O.Nyström, V. Desmaris, et al., in: Proc. 19th Int. Symp. Space Terahertz Technology, April 28–30, 2008, Groningen, Netherlands, P. 351–357.
O. Nyström, I. Lapkin, V.Desmaris, et al., J. Infrared Millim. Terahertz Waves, 30, 746–761 (2009). https://doi.org/10.1007/s10762-009-9493-7
Goldsmith P. F., in: K. J. Button, ed., Infrared and Millimeter Waves, Vol.6, Academic Press, New York (1982), p. 277–344.
P. F. Goldsmith, Quasioptical Systems: Gaussian Beam Quasioptical Propagation and Applications, IEEE Press, New York (1998).
O. Svelto, Principles of Lasers, Plenum, New York (1989).
T.-S.Chu, IEEE Trans. Antennas Propag., AP-31, No. 4, 614–619 (1983). https://doi.org/10.1109/TAP.1983.1143090
G.-Q.Wang and S.-C. Shi, in: Proc. Global Symp. Millimeter Waves, April 21–24, 2008, Nanjing, China, 4534598. https://doi.org/10.1109/GSMM.2008.4534598
A. W. Love, Microwave J ., 5, 117–122 (1962).
J. F. Johansson, N.Whyborn, P.R.Acharya, et al., in: Proc. 2nd Int. Symp. Space Terahertz Tech., February 26–28, 1991, Pasadena, USA, pp. 63–69.
S. Withington and J.A.Murphy, IEEE Trans. Antennas Propag., 40, 198–206 (1992). https://doi.org/10.1109/8.127404
G. Cazzoli and C.Puzzarini, J. Mol. Spectrosc., 240, 153–163 (2006). https://doi.org/10.1016/j.jms.2006.09.013
J. Emsley, The Elements, Clarendon Press, London (1991).
A.V. Lapinov, G.Yu.Golubiatnikov, V.N. Markov, and A. Guarnieri, Astron. Lett., 33, No. 2, 121–129 (2007). https://doi.org/10.1134/S1063773707020065
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 64, No. 12, pp. 971–982, December 2021. Russian DOI: https://doi.org/10.52452/00213462_2021_64_12_971
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Alekseev, R., Lapkin, I.V., Lapinov, A.V. et al. Quasi-Optical Sub-Doppler Lamb-Dip Spectrometer. Radiophys Quantum El 64, 873–883 (2022). https://doi.org/10.1007/s11141-022-10185-0
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DOI: https://doi.org/10.1007/s11141-022-10185-0