Three-dimensional (3D) whispering cave modes (WCMs) for photonic quantum rings (PQRs) are described. The 3D-emitting but surface-normal dominant PQR laser features microampere-level low-threshold currents. The linewidths can be sub-Å while for the PQR laser size less than 1 ¿m, the increasing intermode spacing leads to a single eigenmode PQR laser with a threshold of 300 nA. In contrast to the regular 2D WGM, the 3D WCM's major polarization state is tangential to the PQR rim favoring a strong carrier-photon coupling for the recombinant carriers generating PQRs. A new blue GaN PQRs at wavelengths from 420 to 470 nm also achieve surface-normal lasing easily, thanks to the robust 3D helix WCMs. The PQR can outperform LEDs for high end while overcoming the thermal problem of the LED, where mega-pixel PQR laser chips can be used for panel-less laser TVs.


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    Titel :

    Photonic Quantum Ring Laser of Whispering Cave Mode and the Mega-Pixel Laser Chip


    Beteiligte:
    Kwon, O'Dae (Autor:in)


    Erscheinungsdatum :

    01.12.2008


    Format / Umfang :

    2235907 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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