A Comparison of Laser Oscillators and Quasiclassical Solid State Oscillators

  • Karl F. RenkEmail author
Part of the Graduate Texts in Physics book series (GTP)


We present three types of quasiclassical oscillators that are able to generate microwave radiation of high frequency: Gunn oscillator (used as source of radiation up to ∼ 200 GHz); superlattice oscillator (in development, up to 200 GHz); and resonant-tunneling diode oscillator (demonstrated up to 700 GHz). These oscillators are solid state oscillators, driven by active can be media. An active medium of a solid state oscillator makes use of the nonlinear transport in a semiconductor (Gunn oscillator) or in a semiconductor heterostructure (superlattice oscillator and resonant-tunneling diode oscillator). The nonlinear transport is due to a negative mobility of conduction electrons. The origin of a negative differential mobility is of quantum mechanical nature. However, the transport can be described classically.


Negative Differential Resistance Laser Oscillator Negative Resistance Resonance Circuit High Frequency Field 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Institut für Angewandte PhysikUniversität RegensburgRegensburgGermany

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