English  |  正體中文  |  简体中文  |  Items with full text/Total items : 54367/62174 (87%)
Visitors : 14639710      Online Users : 61
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTHU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    National Tsing Hua University Institutional Repository > 電機資訊學院 > 電機工程學系 > 期刊論文 >  The double resonant enhancement of optical second harmonic susceptibility in the compositionally asymmetric coupled quantum well

    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/71000

    Title: The double resonant enhancement of optical second harmonic susceptibility in the compositionally asymmetric coupled quantum well
    Authors: Lien, Chenhsin;Huang, Yimin;Lei, Tan‐Fu
    教師: 連振炘
    Date: 1994
    Publisher: American Institute of Physics
    Relation: Journal of Applied Physics, American Institute of Physics, Volume 75, Issue 4, Feb 1994, Pages 2177 - 2183
    Keywords: ALAS
    Abstract: The second harmonic suceptibility due to the intersubband transitions in the three-level GaAs/AlxGa1-xAs/AlyGa1-yAs compositionally asymmetric coupled quantum well (CACQW) under the influence of the applied electric field is investigated theoretically. The subband eigenenergy E(n) of the CACQOW structure could he designed to form an equally spaced energy-level ladder. Since the eigenenergy spacing could be designed to resonate with the pumping source, the second harmonic susceptibility could be greatly enhanced through the double resonance. Based on the theoretical calculations, the second harmonic susceptibility as high as 220 nm/V can be achieved for the CACQW. This is a more than three orders of magnitude enhancement as compared to that of the bulk GaAs. In addition to the design of CACQW structure, the double resonance can also be achieved by biasing the CACQW under a proper electric field. The extinguishment of the second order nonlinear optical effect by the applied electric field has also been studied. This phenomenon is attributed to the symmetry restoration of envelope wave functions of the CACQW structures under the quenching electric field C(off). A simple physical model to estimate the C(off) has also been developed.
    Relation Link: http://www.aip.org/
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/71000
    Appears in Collections:[電機工程學系] 期刊論文

    Files in This Item:

    File Description SizeFormat
    2030103010006.pdf1366KbAdobe PDF486View/Open


    SFX Query


    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback