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Experimental Study Of Caesium 6p$_{;J};$+6p$% _{;J}; Ightarrow $ 6s+N$_{;Ljprime };$ Energy Pooling Collisions And Modeling Of Laser Excited Atom Density In Presence Of Optical Pumping And Radiation Trapping


De Tomasi, F.; Milošević, Slobodan; Verkerk, P.; Fioretti, A.; Allegrini, M.; Jabbour, Z.J.; Huennekens, J.
Experimental Study Of Caesium 6p$_{;J};$+6p$% _{;J}; Ightarrow $ 6s+N$_{;Ljprime };$ Energy Pooling Collisions And Modeling Of Laser Excited Atom Density In Presence Of Optical Pumping And Radiation Trapping // Journal of physics B : atomic, molecular and optical physics, 30 (1997), 21; 4991-5008 doi:10.1088/0953-4075/30/21/031 (međunarodna recenzija, članak, znanstveni)


Naslov
Experimental Study Of Caesium 6p$_{;J};$+6p$% _{;J}; Ightarrow $ 6s+N$_{;Ljprime };$ Energy Pooling Collisions And Modeling Of Laser Excited Atom Density In Presence Of Optical Pumping And Radiation Trapping

Autori
De Tomasi, F. ; Milošević, Slobodan ; Verkerk, P. ; Fioretti, A. ; Allegrini, M. ; Jabbour, Z.J. ; Huennekens, J.

Izvornik
Journal of physics B : atomic, molecular and optical physics (0953-4075) 30 (1997), 21; 4991-5008

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Energy pooling; optical pumping; radiation trapping

Sažetak
An experimental study of caesium energy pooling collisions, Cs(6P(J)) + Cs(6P(J)) --> Cs(7P(J')) + Cs(6S(1/2)), at thermal energies, has been carried out in a capillary cell using diode laser excitation. Use of the capillary cell minimizes the effects of radiation trapping, but nonetheless, such effects still play a significant role in the analysis. Consequently, a rate equation model, which treats simultaneous effects of saturation, optical pumping, and radiation trapping, has been developed and is used to determine the Cs(6P(J)) atom density under these experimental conditions. The excited atom densities are combined with measured fluorescence ratios to determine rate coefficients for the caesium energy pooling process. Our values for these rate coefficients are in agreement, within combined error bars, with values we have recently obtained under very different experimental conditions.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
00350102

Ustanove
Institut za fiziku, Zagreb

Autor s matičnim brojem:
Slobodan Milošević, (106893)

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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