TY - JOUR
T1 - Oblique reflection of solitons in an inhomogeneous plasma
T2 - Effect of trapped electrons
AU - Aziz, Farah
AU - Malik, Hitendra K.
AU - Stroth, Ulrich
N1 - Funding Information:
Manuscript received March 6, 2010; revised June 7, 2010; accepted July 6, 2010. Date of publication August 12, 2010; date of current version October 8, 2010. The work of F. Aziz was supported by the Higher Education Commission, Pakistan. F. Aziz is with the Institut für Plasmaforschung (IPF), Universität Stuttgart, 70569 Stuttgart, Germany, and also with the Department of Physics, GC University, Lahore 54000 Pakistan. H. K. Malik is with the Department of Physics, Indian Institute of Technology Delhi, New Delhi 110 016, India. U. Stroth is with the Institut für Plasmaforschung (IPF), Universität Stuttgart, 70569 Stuttgart, Germany. Digital Object Identifier 10.1109/TPS.2010.2060366
PY - 2010/10
Y1 - 2010/10
N2 - This paper aims at studying the oblique reflection of solitons in an inhomogeneous plasma having finite-temperature ions and trapped electrons (two-temperature nonisothermal electrons). In order to study the soliton reflection, a coupled equation is derived based on modified Korteweg-deVries equations for the incident and reflected solitons, and then, it is solved along with the use of incident soliton solution. The expressions for the reflected soliton amplitude, width, and reflection coefficient are obtained and examined for different parameter regimes. The reflection coefficient, which is the ratio of reflected and incident soliton amplitudes, is found to be independent of the ion and electron temperatures. It infers that both the amplitudes change in the same proportion with the ion and electron temperatures. It is observed that the soliton reflects with higher amplitude when the obliqueness is smaller. It is also seen that the reflected soliton undergoes a downshift in its original line of propagation. This downshift is further investigated in detail. The effect of the trapped electrons on the soliton reflection characteristics and on the downshift is also analyzed.
AB - This paper aims at studying the oblique reflection of solitons in an inhomogeneous plasma having finite-temperature ions and trapped electrons (two-temperature nonisothermal electrons). In order to study the soliton reflection, a coupled equation is derived based on modified Korteweg-deVries equations for the incident and reflected solitons, and then, it is solved along with the use of incident soliton solution. The expressions for the reflected soliton amplitude, width, and reflection coefficient are obtained and examined for different parameter regimes. The reflection coefficient, which is the ratio of reflected and incident soliton amplitudes, is found to be independent of the ion and electron temperatures. It infers that both the amplitudes change in the same proportion with the ion and electron temperatures. It is observed that the soliton reflects with higher amplitude when the obliqueness is smaller. It is also seen that the reflected soliton undergoes a downshift in its original line of propagation. This downshift is further investigated in detail. The effect of the trapped electrons on the soliton reflection characteristics and on the downshift is also analyzed.
KW - Inhomogeneous plasma
KW - modified Korteweg-deVries (KdV) (mKdV) equation
KW - nonisothermal electrons
KW - reflection of solitons
UR - http://www.scopus.com/inward/record.url?scp=77957895623&partnerID=8YFLogxK
U2 - 10.1109/TPS.2010.2060366
DO - 10.1109/TPS.2010.2060366
M3 - Article
AN - SCOPUS:77957895623
SN - 0093-3813
VL - 38
SP - 2802
EP - 2811
JO - IEEE Transactions on Plasma Science
JF - IEEE Transactions on Plasma Science
IS - 10 PART 2
M1 - 5546989
ER -