Efficient second-harmonic power extraction was demonstrated recently with GaAs TUNNETT diodes up to 235 GHz and with InP Gunn devices up to 325 GHz. This paper discusses the latest theoretical and experimental results from second-harmonic power extraction at submillimeter-wave frequencies and explores the potential of using power extraction at higher harmonic frequencies to generate continuous-wave radiation with significant output power levels at frequencies above 325 GHz. Initial experimental results are more than 50 /spl mu/W at 356 GHz from a GaAs TUNNETT diode in a third-harmonic mode and at least 0.2-5 /spl mu/W in the frequency range 400-560 GHz from InP Gunn devices in a third or higher harmonic mode. The spectral output of these submillimeter-wave sources was analyzed with a simple Fourier-transform terahertz spectrometer and, up to 415 GHz, with a spectrum analyzer and appropriate harmonic mixers.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Generation of submillimeter-wave radiation with GaAs TUNNETT diodes and InP Gunn devices in a second or higher harmonic mode


    Contributors:
    Eisele, H. (author) / Naftaly, M. (author) / Kamoua, R. (author)


    Publication date :

    2004-01-01


    Size :

    155881 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Continuous millimeter-wave TUNNETT diode system for inspection applications

    Nishizawa, Jun-ichi / Kurabayashi, Toru / Plotka, Piotr et al. | IEEE | 2006


    D-Band Operation of a Second Harmonic GaAs Gunn Oscillator

    Curow, M. / Abou-Elnour, A. / Schuenemann, K. | British Library Online Contents | 1996


    Temporal Dynamics of Mode Interaction in Submillimeter-Wave Second-Harmonic Gyrotron

    Bratman, V. L. / Fedotov, A. E. / Idehara, T. | British Library Online Contents | 2001


    Lasing from GaAs Gunn devices

    Chung, S. H. / Balkan, N. | British Library Online Contents | 2006