• Microwave propagation through modulated air plasma

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    • Keywords


      Plasma microwave; scanning probe; modulation

    • Abstract


      When a microwave propagates through a plasma in which electron density and electron collision frequency periodically vary, the propagating wave is modulated in amplitude and phase. An approximate theory is derived to suit the laboratory experimental conditions. Introducing the amplitude and phase difference, the dependence of electron density and electron collision frequency has been derived for different radio frequency modulation and frequency parameter. A scanning double probe technique is used to measure the exact time variation in the plasma parameters at any fixed position during a single cycle of the applied field. Theoretical values agree with those of experiment.

    • Author Affiliations


      S K Varshney1 M Sakuntala1 2

      1. Department of Physics, Shri Varshney College, Aligarh - 202 001
      2. Department of Physics, Banaras Hindu University, Varanasi - 221 005
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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