1.
Phys Rev E Stat Nonlin Soft Matter Phys
; 63(4 Pt 2): 046610, 2001 Apr.
Artigo
em Inglês
| MEDLINE
| ID: mdl-11308971
RESUMO
We discuss the properties of selective reflection spectroscopy at the interface between a resonant vapor and a complex dense medium, such as a metallic film layered on a dielectric substrate. We show that in the approximation of a low-density vapor, the signal mixes up the absorptive and dispersive components of the "effective resonant susceptibility" of the vapor, with the mixture amount governed by simple laws of linear optics. Preliminary experiments performed at the interface between Cs vapor (D2, 852-nm line) and a silver-coated glass window are reported, that show qualitatively the effect of the atom-surface van der Waals interaction.