Nonlinear Interaction of Electromagnetic Radiation with a Weakly-Magnetized Nonuniform Plasma

1981 ◽  
pp. 251-259
Author(s):  
Hideo Sugai ◽  
Susumu Takeda
Keyword(s):  
Electromagnetic Radiation ◽  
Nonlinear Interaction ◽  
Nonuniform Plasma

INVESTIGATION OF NONLINEAR INTERACTION OF ELECTROMAGNETIC RADIATION WITH SPACE CHARGE IN VACUUM ELECTRONIC DEVICES

2012 ◽  
Vol 15 ◽  
pp. 105-112
Author(s):  
A.H. MAKARYAN ◽  
H.S. HAROYAN ◽  
V.A. SAHAKYAN ◽  
V.R. TADEVOSYAN
Keyword(s):  
Electromagnetic Radiation ◽  
Space Charge ◽  
Nonlinear Interaction ◽  
Radiation Power ◽  
Incident Radiation ◽  
Polarization Current ◽  
Vacuum Electronic Devices ◽  
Power Direction ◽  
Current Characteristics ◽  
Detection Characteristics

The nonlinear interaction of electromagnetic radiation in microwave, terahertz, and optical regions with non-uniformly distributed space charge in the interelectrode space of vacuum devices is investigated. The detection of electromagnetic radiation in the vacuum electronic tubes (diode and triode) with parallel plate electrodes is experimentally demonstrated. The dependence of the detected signal on the incident radiation power, direction of wave polarization, current characteristics and frequency of modulating signal has been investigated. The equation of motion of an electron in the field of electromagnetic wave in the presence of space charge was obtained, according to which, the detection is due to nonlinearity associated with the non-uniform distribution of electrons along the electrostatic field direction. The measured detection characteristics are in reasonable agreement with theoretical estimates.

Absorbers of energy of electromagnetic radiation optical and microwave ranges based on polymeric composites

2017 ◽  
Vol 3 (4) ◽  
pp. 64-68
Author(s):  
V. A. Bannyi ◽  
A. I. Savitsky ◽  
L. I. Kramoreva ◽  
E. S. Petrova ◽  
D. B. Kulikovich ◽  
...  
Keyword(s):  
Electromagnetic Radiation ◽  
Polymeric Composites
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