Our recent studies shows that GaN possesses large two-photon absorption coefficients, even at infrared (IR) wavelength dose to midgap energy. This indicates that two photon confocal photoluminescence images and two-photon optical-beam-induced-current (TP-OBIC) microscopy can be applied on the GaN studies and imaging. Confocal laser scanning microscopy provides a significant improvement in axial resolution over conventional epi-fluorescence microscopy by eliminating out-of-focus fluorescence using a spatial filter in the form of a confocal aperture.


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    Title :

    Two-photon photoluminescence and current images of bulk GaN and InGaN green LEDs


    Contributors:
    Chi-Kuang Sun (author) / Kian-Giap Gan (author) / Fu-Jen Kao (author) / Mao-Kuo Huang (author) / Yung-Shun Wang (author) / Mack, M.P. (author) / DenBaars, S.P. (author)


    Publication date :

    1999-01-01


    Size :

    207276 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English





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