Determination of the absolute excited state densityof a sodium target by means of beam deflectionmeasurements

W. P. Wiersema*, A. R. Schlatmann, S. Schippers, R. Morgenstern

*Bijbehorende auteur voor dit werk

    OnderzoeksoutputAcademicpeer review

    2 Citaten (Scopus)


    The average deflection of a laser excited, divergent sodium beam with a broad velocity distribution is measured by means of a Langmuir-Taylor detector and exploited for determining the absolute density of the excited state in the interaction area. Simulations of the excitation and deflection process point out that the knowledge of the velocity distribution of the sodium atoms plays a crucial part in obtaining reliable information from deflection measurements. From the comparison of simulated and experimental results we find that in our set-up typically 30% of the sodium atoms are in the excited state when both ground state levels are pumped with an intensity of 35 mW cm-2 from an electro-optically modulated CW laser beam; the corresponding excited state density is 1.5 x 10(9) cm-3.

    Originele taal-2English
    Pagina's (van-tot)3725-3734
    Aantal pagina's10
    TijdschriftJournal of Physics B-Atomic Molecular and Optical Physics
    Nummer van het tijdschrift16
    StatusPublished - 28-aug.-1994


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