Electromagnetic waves scattering by periodic plasma structure

✍ Scribed by A.V. Danilov; S.A. Ilchenko; A.T. Kunavin; A.V. Markov; D.V. Sapozhnikov; V.Y. Yakovlev; V.A. Permyakov; S.N. Tsemko; V.A. Volsky

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 226 KB
• Volume: 241
• Category: Article
• ISSN: 0378-4371
• DOI: 10.1016/s0378-4371(97)00087-3

✦ Synopsis

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 12GHz. 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 1.3-1.4cm were filled with Ar-Hg mixture or Xe at a pressure of several Torr. Plasma density on the tube axis varied from 1012 to 1013 cm -3. Only principal reflected and transmitted spatial modes were found to exist. Results of calculation fit the experimental data well.