Advanced Search
MyIDEAS: Login

SUBWAVELENGTH PERIODIC RIPPLE FORMATION ON GaN SURFACE BY FEMTOSECOND LASER PULSES

Contents:

Author Info

  • X. C. WANG

    ()
    (Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, Singapore 638075, Singapore)

  • G. C. LIM

    (Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, Singapore 638075, Singapore)

  • F. L. NG

    (Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, Singapore 638075, Singapore)

  • W. LIU

    (Institute of Materials Research and Engineering, 3 Research Link, Singapore 117602, Singapore)

  • S. J. CHUA

    (Institute of Materials Research and Engineering, 3 Research Link, Singapore 117602, Singapore)

Registered author(s):

    Abstract

    The formation of femtosecond pulsed laser-induced periodic surface structure on GaN is reported for the first time (to our knowledge) in this paper. It has been found that the formation of the laser-induced ripples is very much dependent and quite sensitive to the laser conditions of the incident laser beam energy fluence and pulse numbers. Possibly due to the unique property of high-defect density of GaN material, the process window for laser-induced ripple formation is quite narrow compared to other materials such as InP, GaP, Al2O3 etc. Nevertheless, through finely adjusting laser beam fluence and pulse number, subwavelength periodic ripples could be formed on the GaN surface. The formation of such periodic two-dimensional structures was attributed to optical interference of the incident laser light with scattered waves from a surface disturbance. Photoluminescence emission could still be detected on the GaN ripple area, indicating little degradation of GaN optical property after femtosecond laser processing. The femtosecond laser-induced ripple structure has potential applications in the fabrication of nanostructures for the GaN-based devices.

    Download Info

    If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
    File URL: http://www.worldscinet.com/cgi-bin/details.cgi?type=pdf&id=pii:S0218625X05007530
    Download Restriction: Access to full text is restricted to subscribers.

    File URL: http://www.worldscinet.com/cgi-bin/details.cgi?type=html&id=pii:S0218625X05007530
    Download Restriction: Access to full text is restricted to subscribers.

    As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.

    Bibliographic Info

    Article provided by World Scientific Publishing Co. Pte. Ltd. in its journal Surface Review and Letters.

    Volume (Year): 12 (2005)
    Issue (Month): 04 ()
    Pages: 651-657

    as in new window
    Handle: RePEc:wsi:srlxxx:v:12:y:2005:i:04:p:651-657

    Contact details of provider:
    Web page: http://www.worldscinet.com/srl/srl.shtml

    Order Information:
    Email:

    Related research

    Keywords: Femtosecond pulsed laser; ripple formation; GaN; laser fluence; subwavelength period;

    References

    No references listed on IDEAS
    You can help add them by filling out this form.

    Citations

    Lists

    This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

    Statistics

    Access and download statistics

    Corrections

    When requesting a correction, please mention this item's handle: RePEc:wsi:srlxxx:v:12:y:2005:i:04:p:651-657. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Tai Tone Lim).

    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.

    If references are entirely missing, you can add them using this form.

    If the full references list an item that is present in RePEc, but the system did not link to it, you can help with 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 profile, as there may be some citations waiting for confirmation.

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