Propagation of terahertz electromagnetic wave in plasma with inhomogeneous collision frequency

In this paper, we investigate the absorption spectra of terahertz electromagnetic wave in plasma with inhomogeneous collision frequency. Profiles are introduced to describe the non-uniformity of collision frequency. It is interesting to find that when the plasma is collision frequency inhomogeneous, the absorption spectrum would decreases faster than that in uniform plasma. And the rate of decreasing would be different when the profile changes. Two parameters are set up to predict how the profiles affect the absorption spectra. Furthermore, the effects of electron density are also considered.

[1]  N. Fontaine,et al.  Time-resolved pulsed-plasma characterization using broadband terahertz pulses correlated with fluorescence imaging , 2005 .

[2]  G. Cerri,et al.  FDTD Solution of the Maxwell–Boltzmann System for Electromagnetic Wave Propagation in a Plasma , 2008, IEEE Transactions on Antennas and Propagation.

[3]  R. Scott,et al.  Plasma Characterization With Terahertz Pulses , 2008, IEEE Journal of Selected Topics in Quantum Electronics.

[4]  G. Brodin,et al.  Linear and nonlinear wave propagation in weakly relativistic quantum plasmas , 2012, 1209.4213.

[5]  李振华,et al.  Absorption characteristic of arc plasma in the infrared region , 2011 .

[6]  V. A. Apkarian,et al.  Nonresonant ionization of oxygen molecules by femtosecond pulses: plasma dynamics studied by time-resolved terahertz spectroscopy. , 2005, The Journal of chemical physics.

[7]  N. Dangelo.  Electrostatic dust-cyclotron waves in plasmas with opposite polarity grains , 2002 .

[8]  R. Hochstrasser,et al.  Intense terahertz pulses by four-wave rectification in air. , 2000, Optics letters.

[9]  Yue Liu,et al.  Effect of electron density profile on power absorption of high frequency electromagnetic waves in plasma , 2012 .

[10]  J. Roth,et al.  Numerical calculation of the reflection, absorption, and transmission of microwaves by a nonuniform plasma slab , 1993 .

[11]  Michael Keidar,et al.  Analysis of an Electromagnetic Mitigation Scheme for Reentry Telemetry Through Plasma , 2008 .

[12]  V. B. Pathak,et al.  Electromagnetic eigenmodes of collisional and collisionless plasmas and their stability to stimulated Brillouin scattering , 2007 .

[13]  C. Yuan,et al.  Properties of Propagation of Electromagnetic Wave in a Multilayer Radar-Absorbing Structure With Plasma- and Radar-Absorbing Material , 2011, IEEE Transactions on Plasma Science.

[14]  James P. Rybak,et al.  Progress in Reentry Communications , 1971, IEEE Transactions on Aerospace and Electronic Systems.

[15]  B. Shokri,et al.  Reflection and Absorption of Electromagnetic Wave Propagation in an Inhomogeneous Dissipative Magnetized Plasma Slab , 2013, IEEE Transactions on Plasma Science.

[16]  Jean-Jacques Greffet,et al.  Field theory for generalized bidirectional reflectivity: derivation of Helmholtz’s reciprocity principle and Kirchhoff’s law , 1998 .

[17]  C. Yuan,et al.  Propagation properties of broadband terahertz pulses through a bounded magnetized thermal plasma , 2011 .

[18]  E. Linfield,et al.  Terahertz semiconductor-heterostructure laser , 2002, Nature.

[19]  Riju C. Issac,et al.  Plasma characterization with terahertz time–domain measurements , 2003 .