High resolution cw CARS spectroscopy in D2 gas |
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| Authors: | B.B. Krynetsky,L.A. Kulevsky,V.A. Mishin,A.M. Prokhorov,A.D. Savel&#x ev,V.V. Smirnov |
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| Affiliation: | Academy of Sciences of the USSR, P.N. Lebedev Physical Institute, 117924 Moscow, Leninski prospect 53, USSR |
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| Abstract: | The result of spectroscopic measurements of the Q-branch of gaseous D2 by the method of coherent anti-Stokes Raman scattering are presented. The experiments were carried out with cw single-frequency lasers. The resolution was 40 MHz. The dispersion of |χ(3)| was investigated and its maximum value was estimated to be (0.7 ± 0.3) × 10-13 esu at 1 atm pressure. The full width of Q(2) line versus pressure was measured over the range of 0.06–40 atm. Signal to noise ratios reached 105 in our experiments. |
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