IDEAS home Printed from https://ideas.repec.org/a/wsi/srlxxx/v09y2002i01ns0218625x02002038.html
   My bibliography  Save this article

Beat Structure In The Doubly Excited Rydberg States Converging To Then = 2threshold Of Helium

Author

Listed:
  • R. FOLLATH

    (BESSY, Albert-Einstein-Straß e 15, 12489 Berlin, Germany)

  • G. Reichardt

    (BESSY, Albert-Einstein-Straß e 15, 12489 Berlin, Germany)

  • O. SCHWARZKOPF

    (BESSY, Albert-Einstein-Straß e 15, 12489 Berlin, Germany)

  • W. GUDAT

    (BESSY, Albert-Einstein-Straß e 15, 12489 Berlin, Germany)

Abstract

TheN = 2double excitation series of helium was examined with the high performance U125 plane grating monochromator at BESSY II set to a resolving power of 90 000. A hitherto unresolved beat structure in the principal series was observed at very high excitation levels. The beat can be explained by the mixing of two series converging to different ionization thresholds and having an energy spacing corresponding to the energy split between the2p1/2and the2p3/2level of singly ionized helium. This indicates that the electron interaction at high excitation levels must be described within the JK coupling scheme.

Suggested Citation

  • R. FOLLATH & G. Reichardt & O. SCHWARZKOPF & W. GUDAT, 2002. "Beat Structure In The Doubly Excited Rydberg States Converging To Then = 2threshold Of Helium," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 9(01), pages 165-168.
    • Handle: RePEc:wsi:srlxxx:v:09:y:2002:i:01:n:s0218625x02002038
    DOI: 10.1142/S0218625X02002038
    as

    Download full text from publisher

    File URL: http://www.worldscientific.com/doi/abs/10.1142/S0218625X02002038
    Download Restriction: Access to full text is restricted to subscribers
    File URL: https://libkey.io/10.1142/S0218625X02002038?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:wsi:srlxxx:v:09:y:2002:i:01:n:s0218625x02002038. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Tai Tone Lim (email available below). General contact details of provider: http://www.worldscinet.com/srl/srl.shtml .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.