Strong-field index enhancement via selective population of dressed states Academic Article uri icon


  • A three-level [Formula Presented] scheme is proposed in order to achieve a large (resonant) index of refraction with vanishing absorption. This scheme is based on the selective population of one of the dressed states produced by a strong laser field. For modest values of the density and realistic atomic parameters the present scheme gives the index to absorption ratio [Formula Presented] It is to be noted that an off-resonant two-level scheme can also give such a ratio but the index of refraction will be smaller. The present approach to index enhancement is not limited to weak fields, as is the case in some other schemes. 1997 The American Physical Society.

published proceedings


author list (cited authors)

  • Loffler, M., Nikonov, D. E., Kocharovskaya, O. A., & Scully, M. O.

citation count

  • 26

complete list of authors

  • Loffler, M||Nikonov, DE||Kocharovskaya, OA||Scully, MO

publication date

  • December 1997