Stark effect in He I in extremely high electric field

• Autorzy: Windholz L , Drozdowski R , Wasowicz T J , Kwela J
• Języki publikacji: EN

Abstrakty

EN

In the spectral range between 480–630 nm the Stark effect of the transitions n1Q–21S, n1Q–21P and n3Q–23P (n = 3–10, Q = S, P, D, ...) was studied in atomic helium using electric field up to 1500 kV/cm. For such an extremely high field the Stark splitting becomes greater than the simple structure of the atom. In consequence, anticrossings of the Stark components of the same magnetic quantum number occur. The experimental results have been compared with the theoretical shifts. The results of calculations show good agreement with observation not only for low field values, but also for those in high fields and in the case of level anticrossings.

Słowa kluczowe

EN

Stark effect; helium; electric field

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2006
• Tom: Vol. 36, nr 4
• Strony: s. 569--574
• Opis fizyczny: Bibliogr. 10 poz., wykr.

Twórcy

autor

Windholz L

• Institiut für Experimentalphysik der Technischen Universität Graz, A-8010 Graz, Petersgasse 16, Austria

autor

Drozdowski R

• Institute of Experimental Physics, University of Gdańsk, ul. Wita Stwosza 57, 80-952 Gdańsk, Poland

autor

Wasowicz T J

• Institute of Experimental Physics, University of Gdańsk, ul. Wita Stwosza 57, 80-952 Gdańsk, Poland

autor

Kwela J

• Institute of Experimental Physics, University of Gdańsk, ul. Wita Stwosza 57, 80-952 Gdańsk, Poland

Bibliografia

• [1] WINDHOLZ L., DROZDOWSKI R., KWELA J., HELDT J., Stark effect in atomic helium in a very high electric field up to 1500 kV/cm, Proceedings of SPIE 5258, 2003, pp. 57–61.
• [2] WINDHOLZ L., DROZDOWSKI R., WĄSOWICZ T.J., KWELA J., Anticrossing effects in Stark spectra of helium, Proceedings of SPIE 5849, 2005, pp. 24–8.
• [3] WINDHOLZ L., Stark effect of Ar I'-lines, Physica Scripta 21(1), 1980, pp. 67–74.
• [4] COK D.R., LUNDEEN S.R., Magnetic and electric fine structure in helium Rydberg states, Physical Review A 19(5), 1979, pp.1830–40, and erratum: Phys. Rev. A 24(6), 1981, pp. 3283–84.
• [5] MARTIN W.C., Improved 4He I 1snl ionization energy, energy levels, and Lamb shifts for 1sns and 1snp terms, Physical Review A 36(8), 1987, pp. 3575–89.
• [6] KAISER D., LIU Y.-Q., VON OPPEN G., Electric-field singlet-triplet antrecrossing of H I, Journal Physics B: Atomic, Molecular and Optical Physics 26(3), 1993, pp. 363–80.
• [7] KAISER D., PhD Thesis, TU Berlin 1993.
• [8] NIST Atomic Spectra Database, http://physics.nist.gov/cgi-bin/AtData/display.ksh.
• [9] KONO A., HATTORI S., Accurate oscillator strengths for neutral helium, Physical Review A 29(6), 1984, pp. 2981–88.
• [10] BETHE H., SALPETER E., QuAntum Mechanics of One- and Two-Electron Atoms, Springer, Berlin 1957.