Pressure broadening and frequency shift of the D1 and D2 lines of K in the presence of Ne and Kr
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We present the results of pressure broadening and frequency shift of K D1 and D2 lines in presence of 1–4 amg of Neon gas and 1–5 amg of Krypton gas by laser absorption spectroscopy. Both pressure broadening and frequency shift are linearly related to gas density with high accuracy. The asymmetry of the absorption line shape caused by van der Waals potential was first found in the near-line wings of large density Kr in the experiment. We have also investigated the temperature dependence of the pressure broadening and frequency shift in a range of 353–403 K in Neon and 373–417 K in Krypton and compared the results of the pressure broadening and frequency shift with previous values.
KeywordsAtomic and Molecular Collisions
- 20.W. Happer, Y.-Y. Jau, T. Walker, Optically pumped atoms (John Wiley & Sons, Weinheim, Germany, 2010) Google Scholar
- 28.S.J. Seltzer, Developments in alkali-metal atomic magnetometry, Ph.D. thesis, Princeton University, 2008 Google Scholar