Spectroscopy in an extremely thin vapor cell: Comparing the cell-length dependence in fluorescence and in absorption techniques

Journal Article · Tue Jun 01 04:00:00 EDT 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.69.065802· OSTI ID:20643840

Sarkisyan, D; Varzhapetyan, T; Sarkisyan, A; Malakyan, Yu; Papoyan, A; Lezama, A; Bloch, D; Ducloy, M ^[1]

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1. Institute for Physical Research, NAS of Armenia, Ashtarak-2, 378410 Armenia (Armenia)

We compare the behavior of absorption and of resonance fluorescence spectra in an extremely thin Rb vapor cell as a function of the ratio of L/{lambda}, with L the cell thickness (L{approx}150-1800 nm) and {lambda} the wavelength of the Rb D{sub 2} line ({lambda}=780 mn). The Dicke-type coherent narrowing [G. Dutier et al., Europhys. Lett. 63, 35 (2003)] is observed only in transmission measurements, in the linear regime, with its typical collapse and revival, which reaches a maximum for L=(2n+1){lambda}/2 (n integer). It is shown not to appear in fluorescence, whose behavior-amplitude, and spectral width, is more monotonic with L. Conversely, at high-intensity, the sub-Doppler saturation effects are shown to be the most visible in transmission around L=n{lambda}.

• OSTI ID: 20643840
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 69; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION
AMPLITUDES
COMPARATIVE EVALUATIONS
DOPPLER EFFECT
EMISSION SPECTRA
LASER RADIATION
LENGTH
LIGHT TRANSMISSION
PHOTON-ATOM COLLISIONS
RESONANCE FLUORESCENCE
RUBIDIUM
SPECTROSCOPY
THICKNESS
VAPORS
WAVELENGTHS