English  |  正體中文  |  简体中文  |  Items with full text/Total items : 66984/66984 (100%)
Visitors : 23164858      Online Users : 473
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU 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


    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/39055


    Title: A study of the Franz-Keldysh oscillations in electromodulation reflectance of Si-delta-doped GaAs by a fast Fourier transformation
    Authors: Chang,WH;Hsu,TM;Lee,WC;Chuang,RS
    Contributors: 物理研究所
    Keywords: ELECTRIC-FIELD;PHOTOREFLECTANCE;SPECTROSCOPY;REGION
    Date: 1998
    Issue Date: 2010-07-08 14:03:30 (UTC+8)
    Publisher: 中央大學
    Abstract: The line shapes of electromodulation spectra exhibit extended Franz-Keldysh oscillations and interference beats in the presence of a uniform built-in electric field. For this work, we used photoreflectance and contactless electroreflectance to study the Franz-Keldysh oscillations in Si-delta-doped GaAs. The fast Fourier transformation taken to the photoreflectance and contactless electroreflectance spectra, produced more complicated results than were observed in previous studies, when the effect of the modulation field is nonnegligible. This indicates that the interference beats are not only due to different effective heavy-hole and light-hole mass but also to the modulation field. We propose that the Franz-Keldysh oscillations generally contain four frequencies, which correspond to the heavy-hole and Light-hole splitting. A comparison between the experiments and some numerical simulations attest to the validity of our proposal. This line shape analysis could then be applied to estimate the strength of a modulation field in contactless electroreflectance and photoreflectance. (C) 1998 American Institute of Physics.
    Relation: JOURNAL OF APPLIED PHYSICS
    Appears in Collections:[物理研究所] 期刊論文

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML313View/Open


    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback  - 隱私權政策聲明