2001
DOI: 10.1364/josab.18.001701
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Characterization of the retrofluorescence inhibition at the interface between glass and optically thick Cs vapor

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Cited by 11 publications
(27 citation statements)
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“…These features are similar to those reported previously for excitation on the Cs 852 nm line [3], but here the resolution of the hyperfine components makes visible that the dip is shifted to the red (note that the discussion in [3,4,7] has been limited to the strongest hyperfine component, for which the red side is plagued with the-hardly resolved-other hyperfine components, of a weaker amplitude). It is however very delicate to find a narrow contribution on the fluorescence spectrum itself, as it was already the case in [3,4,7]. However, the FM applied to the laser (at 10 kHz, and with an excursion ~ 10 MHz much smaller than the width of the direct signal) allows to process the signal by a lock-in detector, delivering the frequency-derivative of the initial spectrum, which emphasizes the narrow contributions.…”
supporting
confidence: 88%
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“…These features are similar to those reported previously for excitation on the Cs 852 nm line [3], but here the resolution of the hyperfine components makes visible that the dip is shifted to the red (note that the discussion in [3,4,7] has been limited to the strongest hyperfine component, for which the red side is plagued with the-hardly resolved-other hyperfine components, of a weaker amplitude). It is however very delicate to find a narrow contribution on the fluorescence spectrum itself, as it was already the case in [3,4,7]. However, the FM applied to the laser (at 10 kHz, and with an excursion ~ 10 MHz much smaller than the width of the direct signal) allows to process the signal by a lock-in detector, delivering the frequency-derivative of the initial spectrum, which emphasizes the narrow contributions.…”
supporting
confidence: 88%
“…Remarkably, in a series of papers [3-6] on so-called "retrofluorescence" -i.e. observation of the fluorescence in a backward direction, relatively to an excitation under near normal incidence-the J.-M. Gagné group has observed [3,4] a tiny sub-Doppler component (width ~40 MHz vs. Doppler width ~250 MHz) in the excitation spectrum of fluorescence on the Cs D 2 line at 852 nm appearing over a broad dip in the fluorescence spectrum (see also in [7] for a confirmation on the Rb D 2 line, with a width ~25-30 MHz for the sub-Doppler contribution).The broad spectral dip [9,10] is known to originate in a non-radiative relaxation on the wall (the corresponding quenching is mostly on resonance, corresponding to maximal absorption length), but the specific sub-Doppler feature reported in [3,4,7] has lacked a clear interpretation. The claim has been that it 3 is needed to discriminate between a far-field region (i.e.…”
mentioning
confidence: 99%
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