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Volumn 58, Issue 3, 1998, Pages 2460-2466

Enhanced and reduced absorptions via quantum interference: Solid system driven by a rf field

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EID: 0001468987     PISSN: 10502947     EISSN: 10941622     Source Type: Journal    
DOI: 10.1103/PhysRevA.58.2460     Document Type: Article
Times cited : (43)

References (31)
  • 17
    • 0011711522 scopus 로고
    • PRBMDO
    • For example, see L. E. Erickson, Phys. Rev. B 19, 4412 (1979); PRBMDO
    • (1979) Phys. Rev. B , vol.19 , pp. 4412
    • Erickson, L.E.1
  • 19
    • 33645513912 scopus 로고
    • PHYSAG
    • For reviews of early studies on quantum interference effects in atomic gases, see G. W. Series, Physica (Amsterdam) 33, 138 (1967); PHYSAG
    • (1967) Physica (Amsterdam) , vol.33 , pp. 138
    • Series, G.W.1
  • 20
  • 28
    • 85037231957 scopus 로고    scopus 로고
    • To separate stimulated Raman signals from background probe absorption, the driving beam is gated by the AOM to produce a pulse train. The transmitted intensity (Formula presented) of the probe beam from the sample suddenly decreases at the end of each pulse of the driving beam. This intensity drop (Formula presented) of the probe beam corresponds to the stimulated Raman signal. (Formula presented) can be obtained by deducing (Formula presented) immediately after the end of the pulse from the (Formula presented) just before that. In the measurements, these two probe intensities were independently collected by two boxcar integrators. The two gates of the integrators were set at intervals of (Formula presented) before and after the end of the pulse, and their widths were both (Formula presented). Two outputs from the integrators were sent to a differential amplifier. (Formula presented) was estimated from the output of this amplifier. The stimulated Raman spectra were obtained from (Formula presented) as a function of (Formula presented)
    • To separate stimulated Raman signals from background probe absorption, the driving beam is gated by the AOM to produce a pulse train. The transmitted intensity (Formula presented) of the probe beam from the sample suddenly decreases at the end of each pulse of the driving beam. This intensity drop (Formula presented) of the probe beam corresponds to the stimulated Raman signal. (Formula presented) can be obtained by deducing (Formula presented) immediately after the end of the pulse from the (Formula presented) just before that. In the measurements, these two probe intensities were independently collected by two boxcar integrators. The two gates of the integrators were set at intervals of (Formula presented) before and after the end of the pulse, and their widths were both (Formula presented). Two outputs from the integrators were sent to a differential amplifier. (Formula presented) was estimated from the output of this amplifier. The stimulated Raman spectra were obtained from (Formula presented) as a function of (Formula presented).


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