Yu. Malakyan

Publications (2)0 Total impact

• Source

  Available from: arxiv.org

  Article: Narrow and contrast resonance of increased absorption in Lambda-system observed in Rb cell with buffer gas

  A. Sargsyan, A. Papoyan, A. Sarkisyan, Yu. Malakyan, G. Grigoryan, D. Sarkisyan, Y. Pashayan-Leroy, C. Leroy
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  ABSTRACT: We report observation of a narrow (sub-natural) and high-contrast resonance of increased absorption ("bright" resonance) in Rb cell with Ne buffer gas under previously unexplored experimental conditions for coupling and probe radiation configuration. The coupling laser stabilized frequency is detuned by ~ 3 GHz from 5S1/2, Fg=3 --> 5P3/2, Fe=2,3,4 transitions, while the probe laser frequency is scanned across these transitions. We believe the bright resonance formation, occurring when the probe laser frequency is blue-shifted from the coupling frequency by a value of the ground state hyperfine splitting, is caused predominantly by a 2-photon absorption of the probe radiation 5S1/2, Fg=2 --> 5S1/2, Fg=3 with 5P3/2 as an intermediate state. We also report and interpret splitting of the bright resonance into 6 well resolved and contrast components in moderate magnetic fields (B ~ 10 - 250 G).
  03/2009;
• Conference Proceeding: Coherent spectral narrowing of the faraday rotation in Rb vapor nanocell

  D. Sarkisyan, T. Varzhapetyan, Yu. Malakyan, A. Papoyan, D. Bloch, M. Ducloy
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  ABSTRACT: Faraday rotation in a nanocell with smoothly variable thickness L of Rb atomic vapor column in the range 140-1700 nm has been obtained. Unusual behavior of Faraday rotation versus the ratio L/lambda (lambda = 780 nm) has been studied
  Quantum Electronics Conference, 2004. (IQEC). International; 06/2004