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Volumn 104, Issue 24, 1996, Pages 9689-9697

Laser cooling of molecules: A sequential scheme for rotation, translation, and vibration

Author keywords

[No Author keywords available]

Indexed keywords

AMPLIFIERS (ELECTRONIC); CESIUM; COOLING; DOPPLER EFFECT; ELECTRON ENERGY LEVELS; ELECTRON TRANSITIONS; FREQUENCIES; LASERS; MOLECULAR BEAMS; OPTICAL PUMPING; RAMAN SCATTERING;

EID: 0030170101     PISSN: 00219606     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.471731     Document Type: Article
Times cited : (186)

References (49)
  • 1
    • 0000788501 scopus 로고
    • The mechanical effects of light
    • J. Opt. Soc. Am. 2, (1985), special issue on the mechanical effects of light, edited by P. Meystre and S. Stenholm.
    • (1985) J. Opt. Soc. Am. , vol.2 , Issue.SPEC. ISSUE
    • Meystre, P.1    Stenholm, S.2
  • 2
    • 84975568412 scopus 로고
    • Laser cooling and trapping of atoms
    • J. Opt. Soc. Am. B 6, (1989), special issue on laser cooling and trapping of atoms, edited by S. Chu and C. Wieman.
    • (1989) J. Opt. Soc. Am. B , vol.6 , Issue.SPEC. ISSUE
    • Chu, S.1    Wieman, C.2
  • 26
    • 85033056374 scopus 로고    scopus 로고
    • note
    • 2. If total saturation of all transitions is not achieved, how well the MSFL performs during the TE, RE, or VE cooling steps will depend on actual sideband intensities. Of major concern are weak unsaturated transitions that could degrade TE cooling efficiency (molecules getting left behind in the chirp). Repumping, explained in the appendices, is a possible solution. Numerical simulations of these effects are currently underway. We also note that the problem of driving the weakest transitions with the weakest sidebands is somewhat mitigated by the fact that broadband amplifiers (e.g., alexandrite and semiconductor power amplifiers) characteristically saturate at some intensity (for a given frequency). This results in the highest gain for the weakest sidebands.
  • 35
    • 85033064007 scopus 로고    scopus 로고
    • note
    • 2, starting with the P(6) line this limit is estimated to be ∼670 GHz/ms. In practice (especially for large J, or rotational heating), it would be faster and more efficient to perform a "stepped" P chirp whereby the chirp proceeds by rapidly slewing between sequential even or odd J resonances [P(J), P(J - 2),⋯, etc.]. Although technically more difficult to perform than a continuous chirp, a stepped chirp could selectively cool (or heat) ortho or para molecules independently.
  • 45
    • 85033071482 scopus 로고    scopus 로고
    • note
    • 2)=A-Bv″. The largest possible slope (B) is desirable in this case. The slopes (B) for the alkali metal dimer B-X bands have been found to lie in the order Li>K>Cs>Rb>Na.
  • 46
    • 85033066890 scopus 로고
    • Ph.D. thesis, University of Iowa
    • J. T. Bahns, Ph.D. thesis, University of Iowa, 1983;
    • (1983)
    • Bahns, J.T.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.