• DocumentCode
    3592005
  • Title

    Wrinkled SiGe Nanofilms as a Source of Terahertz Radiation

  • Author

    Fedorchenko, Alexander I. ; Cheng, Henry H. ; Koroleva, Anastasia ; Wei-Chih Wang

  • Author_Institution
    Inst. of Thermomech., Prague, Czech Republic
  • fYear
    2014
  • Firstpage
    121
  • Lastpage
    124
  • Abstract
    We demonstrate that the wrinkled Si1-xGex/Si1-yGey films can serve as radiation sources, which emit electromagnetic waves in a very wide range of the frequencies including the terahertz band from 0.3 to 3 THz. The emission mechanism is based on the change of acceleration of carriers, when they travel along the sinusoidal trajectory in wrinkled Si1-xGex/Si1-yGey films, a manner similar to synchrotron radiation with undulators, or like a free-electron laser.
  • Keywords
    Ge-Si alloys; nanostructured materials; semiconductor materials; semiconductor thin films; terahertz wave spectra; Si1-xGex-Si1-yGey; carrier acceleration; electromagnetic waves; emission mechanism; frequency 0.3 THz to 3 THz; sinusoidal trajectory; terahertz band; terahertz radiation source; wrinkled nanofilms; Etching; Films; Nanostructures; Quantum cascade lasers; Silicon; Silicon germanium; Trajectory; hole oscillation; terahertz radiation; wrinkled SiGe nanofilms;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Optomechatronic Technologies (ISOT), 2014 International Symposium on
  • Type

    conf

  • DOI
    10.1109/ISOT.2014.37
  • Filename
    7119401
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3592005