Polarization change of light scattering near a2 P 3/2?2 S 1/2 resonance

Kroop, V.; Kammler, Ch.; Behmenburg, W.

doi:10.1007/bf01408967

Cited by 6 publications

(2 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The intensity of the fluorescence I(a) is detected in the x direction and is analyzed by a linear polarizer set at an angle a to the quantization axis. The line polarization PL is defined as I(0) -I(90) I(0)+I (90) In previous experimental studies [1,2], sodium atoms in a vapor were irradiated by very weak laser light and PL was measured as a function of laser tuning over approximately +10 GHz from the 3 S&/2 -3 P3/2 transition (the D2 line). The resolution of the data was limited by the Doppler width of the transition, about 1 GHz; however, strong depolarization effects were found near resonance.…”

Section: Introductionmentioning

confidence: 99%

Line polarization of laser-excited NaD2-transition resonance fluorescence

1992

View full text Add to dashboard Cite

The sodium D& transition is resonantly excited by~-polarized, narrow-band laser radiation. The line polarization of the resulting fluorescence detected normally to the plane containing the electric-field vector of the radiation and its propagation direction, as well as the atomic beam, is measured as a function of radiation intensity and tuning. The data are compared to calculations from a quantumelectrodynamic theory which includes all participating energy states in the hyperfine representation. The quantitative agreement is very good.PACS number(s): 32.80. Bx, 32.50.+d, 42.50.Hz, 42.50.Wm

show abstract

Section: Introductionmentioning

confidence: 99%

Line polarization of laser-excited NaD2-transition resonance fluorescence

1992

View full text Add to dashboard Cite

show abstract

“…Rayleigh/Raman-and fluorescence components differ also with regard to their polarization. The linear polarization degree P~(coL) of the Rayleigh/Ramancomponent is unaffected by collisions, but changes with co L due to interferences of the frequency dependent scattering amplitudes of the 32p fs-intermediate states contributing to the scattering [12]. …”

Section: ) Icol-co~l ~ Acoomentioning

confidence: 99%

Collisional depolarization and redistribution of laser radiation in near resonance with a2 P 3/2?2 S 1/2 transition

Kroop

Behmenburg

1980

Z Physik A

Self Cite

View full text Add to dashboard Cite

We have investigated experimentally and theoretically the spectral distribution and collisional depolarization of laser light near resonant to the Na transition 3 2S1/2~---,3 2P3/2 scattered from a Na/Ar mixture in a cell (nNa ~ 4.0 x 101 o cm 3, nAr ~ 1.0 X 1017 cm-3). In particular, at excitation intensity of ~3mW/mm 2 and bandwidth of <10MHz, intensity I F and linear polarization degree P~ of the D2-fluorescence component of the scattered spectrum have been measured as functions of the laser detuning A2 L from the D2-resonance within two regions: 1) I A 2LI < Doppler-width; 2) 20 > I A 2c[/A/l o > 1. Within the first region the influence of hyperfine splitting as well as pumping of the hyperfine and Zeeman sublevels of 3 2S1/2 was studied in detail. Using an overall, total collision cross section for depolarization of 3 2P3/2 state atoms, calculations on the basis of the theory of redistribution reproduce qualitatively, but in a consistent manner, the experimental functions lr(A 2i.) and Pp(A2L). The possibility to derive differential cross sections from Pv(A2L) is discussed.

show abstract