Adaptive Optics in the Far IR and Submillimeter Ranges

  • A. B. Shvartsburg
Part of the Ettore Majorana International Science Series book series (EMISS, volume 54)


A new method for high speed temporal modulation of infrared wave beams, reflected from semiconductor thin films containing a plasma of free carriers, is proposed. The physical foundations of such a method, based on the non-linear and bistability properties of free carrier plasmas in these films, show the possibility of developing high-speed tunable modulators and polarizers. The bistability conditions are tunable by means of magnetic field. The reflection of a continuous wave beam from a film with tunable reflection coefficient leads to pulse shaping, the pulse duration being as small as 10−9 sec.


Reflection Coefficient Wave Beam Carrier Temperature Carrier Heating Complex Reflection Coefficient 
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Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • A. B. Shvartsburg
    • 1
  1. 1.Central Design Bureau for Unique InstrumentationUSSR Academy of SciencesMoscowUSSR

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