Electromagnetic waves scattering by periodic plasma structure

• Published in: Physica A Vol. 241; no. 1; pp. 226 - 230
• Main Authors: Danilov, A.V., Ilchenko, S.A., Kunavin, A.T., Markov, A.V., Sapozhnikov, D.V., Yakovlev, V.Y., Permyakov, V.A., Tsemko, S.N., Volsky, V.A.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-07-1997
• Subjects: Discharge tubes array; Reflection, transmission and absorption factors; Resonant absorption; Reflection, transmission and absorption factors; Resonant absorption; Discharge tubes array; 52.40.Db
• DOI: 10.1016/S0378-4371(97)00087-3
• EISSN: 1873-2119
• ISSN: 0378-4371

Periodic arrays of discharge tubes placed directly against each other were used to produce a plasma layer reflecting and absorbing electromagnetic waves. Reflection, transmission and absorption factors of normally incident waves were studied both theoretically and experimentally for these arrays in the frequency range from 5 to 12 GHz. Two wave-polarizations were under investigation, electric field of the wave was either parallel (E-wave) or perpendicular (H-wave) to the tube axis. Glass tubes with ID 1.3-1.4 cm were filled with ArHg mixture or Xe at a pressure of several Torr. Plasma density on the tube axis varied from 10
12 to 10
13 cm
−3. Only principal reflected and transmitted spatial modes were found to exist. Results of calculation fit the experimental data well.