Fourier transform (FT) analysis is applied to electromodulation data for circumstances in which Franz-Keldysh oscillations (FKO) dominate the optical spectrum. It is shown that the FT analysis simplifies the procedure for obtaining the electric fields from the FKO's. In addition, an internal check is provided by virtue of the fact that both light and heavy hole contributions to the optical spectrum are resolved in the transformed data. Applications to various device structures are considered from simple structures optimized for the FKO effect to HEMTs and HBTs.


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    Title :

    Fourier transform analysis of Franz-Keldysh oscillations in electromodulation spectroscopy


    Contributors:

    Published in:

    Proceedings of LEOS'94 ; 2 ; 214-215 vol.2


    Publication date :

    1994-01-01


    Size :

    170056 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Fourier Transform Analysis of Franz-Keldysh Oscillations in Electromodulation Spectroscopy

    IEEE; Lasers and Electro-Optics Society | British Library Conference Proceedings | 1994