Improvement of spectral resolution by using the excitation dependence of dipoledipole interaction in a dense atomic gas Academic Article uri icon


  • We have studied the selective reflection from the interface between a dense rubidium (Rb) atomic vapor and a transparent dielectric. A remarkable narrowing of the spectrum, which can be used to improve the resolution of spectroscopy of dense media, has been demonstrated. This narrowing results from the reduction of the dipole-dipole interaction between atoms when the Rb vapor is excited by a strong pump laser. By using this technique, we have resolved the hyperfine structure of the Rb D2 line, which is hidden by collisional broadening. 2008 Springer-Verlag.

published proceedings

  • Applied Physics B

author list (cited authors)

  • Li, H., Varzhapetyan, T. S., Sautenkov, V. A., Rostovtsev, Y. V., Chen, H., Sarkisyan, D., & Scully, M. O.

citation count

  • 16

complete list of authors

  • Li, H||Varzhapetyan, TS||Sautenkov, VA||Rostovtsev, YV||Chen, H||Sarkisyan, D||Scully, MO

publication date

  • May 2008