Open AccessEssential features of optical processes in neon-buffered submicron-thin Rb vapor cell
Author(s) -
G. Hakhumyan,
A. Sargsyan,
Claude Leroy,
Y. Pashayan-Leroy,
A. Papoyan,
D. Sarkisyan
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.014577
Subject(s) - neon , buffer gas , lambda , torr , wavelength , optics , materials science , atomic physics , spectral line , absorption spectroscopy , vapor pressure , absorption (acoustics) , laser , fluorescence , observable , physics , analytical chemistry (journal) , argon , chemistry , astronomy , chromatography , thermodynamics , quantum mechanics
A new submicron thin cell (STC) filled with Rb and neon gas is developed and comparison of resonant absorption with STC containing pure Rb is provided. The effect of collapse and revival of Dicke-type narrowing is still observable for the thickness L = lambda /2 and L = lambda , where lambda is a resonant laser wavelength 794 nm (D(1) line). For an ordinary Rb cm-size cell with addition of buffer gas, the velocity selective optical pumping/saturation (VSOP) resonances in saturated absorption spectra are fully suppressed if neon pressure > 0.5 Torr. A spectacular difference is that for L = lambda , VSOP resonances are still observable even when neon pressure is > or = 6 Torr. Narrow fluorescence spectra at L = lambda /2 allow one to realize online buffer gas pressure monitoring. A good agreement with theoretical model is observed.