Fluorescence of Sodium Vapour Excited by 330 nm Laser Pulses

• Authors: N. Gorbunov , P. Kozłowski , K. Nowak , T. Stacewicz
• Languages of publication: EN

Abstracts

EN

We report results of investigation on the fluorescence induced in sodium vapour by pulses of laser light tuned near the 3S → 4P transition (330 nm). The fluorescence was observed in perpendicular and parallel directions in respect to the laser beam. A depletion of fluorescence intensity corresponding to the 5D → 3P transition (498 nm) was observed along the laser beam. We explain this effect as a result of reabsorption that is caused by intense population of the 3P level due to cascade stimulated processes. The most intense depletion occurs about 20 ns after the laser pulse and it corresponds to the moment of maximal population of the 3P level.

Keywords

EN

32.80.Wr; 34.80.Dp; 46.65.+g

Discipline

• 46.65.+g: Random phenomena and media(see also 05.40.-a Fluctuation phenomena, random processes, noise, and Brownian motion)
• 32.80.Wr: Other multiphoton processes
• 34.80.Dp: Atomic excitation and ionization

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2001
• Volume: 99
• Issue: 5
• Pages: 531-537

Dates

published

2001-05

received

2000-09-18

(unknown)

2000-12-14

(unknown)

2001-03-01

Contributors

author

N. Gorbunov

• Physics Institute, St. Petersburg State University, Ulianovskaya 1, 198904 St. Petersburg, Russia

author

P. Kozłowski

• Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland

author

K. Nowak

• Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland

author

T. Stacewicz

• Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland

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Identifiers

DOI

10.12693/APhysPolA.99.531