Počet záznamů: 1

Radiation emission from wrinkled SiGe/SiGe nanostructure

  1. 1.
    0349035 - UT-L 2011 RIV US eng J - Článek v odborném periodiku
    Fedorchenko, Alexander I. - Cheng, H. H. - Sun, G. - Soref, R. A.
    Radiation emission from wrinkled SiGe/SiGe nanostructure.
    Applied Physics Letters. Roč. 96, č. 11 (2010), s. 113104-113107 ISSN 0003-6951
    Výzkumný záměr: CEZ:AV0Z20760514
    Klíčová slova: SiGe wrinkled nanostructures * si-based optical emitter * synchrotron radiation
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 3.820, rok: 2010
    http://apl.aip.org/resource/1/applab/v96/i11/p113104_s1?isAuthorized=no

    Semiconductor optical emitters radiate light via band-to-band optical transitions. Here, a different mechanism of radiation emission, which is not related to the energy band of the materials, is proposed. In the case of carriers traveling along a sinusoidal trajectory through a wrinkled nanostructure, radiation was emitted via changes in their velocity in a manner analogous to synchrotron radiation. The radiated frequency of wrinkled SiGe/SiGe nanostructure was found to cover a wide spectrum with radiation power levels of the order of submilliwatts. Thus, this nanostructure can be used as a Si-based optical emitter and it will enable the integration of optoelectronic devices on a wafer.
    Trvalý link: http://hdl.handle.net/11104/0189379