Amplification and Guiding of Microwave Radiation in a Plasma Channel Created by an Ultrashort High-Intensity Laser Pulse in Noble Gases

被引：11

作者：

Bogatskaya, A. V. ^{[1
,2
,3
]}

Popov, A. M. ^{[1
,2
,3
]}

Smetanin, I. V. ^{[3
]}

机构：

[1] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119991, Russia

[2] Moscow MV Lomonosov State Univ, DV Skobeltsyn Inst Nucl Phys, Moscow 119991, Russia

[3] PN Lebedev Phys Inst, Moscow 119991, Russia

来源：

JOURNAL OF RUSSIAN LASER RESEARCH | 2014年 / 35卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

nonequilibrium plasma; plasma waveguides; multiphoton ionization; electron energy distribution function; ELECTROMAGNETIC-RADIATION; FEMTOSECOND; DISCHARGES; AIR;

D O I：

10.1007/s10946-014-9445-0

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We develop an analytical model of the evolution of a plasma channel produced in rare gases (argon and xenon) by a femtosecond KrF laser pulse. We show that the strong nonequilibrium of the photoelectron energy spectrum and the presence of the Ramsauer minimum in the transport scattering cross section makes the channel optically more dense as compared to the non-ionized gas in the microwave frequency band, and consequently such a channel appears to be a waveguide. In xenon, this nonequilibrium state of the plasma leads to the transportation and amplification of the microwave signal during the relaxation process of the photoelectron energy spectrum.

引用

页码：437 / 446

页数：10

共 26 条

[1] The physics of attosecond light pulses [J].

Agostini, P ;

DiMauro, LF .

REPORTS ON PROGRESS IN PHYSICS, 2004, 67 (06) :813-855

[2]

[Anonymous], 2015, Electromagnetic Theory

[3] KIRCHHOFFS RADIATION LAW FOR PLASMAS WITH NON-MAXWELLIAN DISTRIBUTIONS [J].

BEKEFI, G ;

HIRSHFIELD, JL ;

BROWN, SC .

PHYSICS OF FLUIDS, 1961, 4 (02) :173-176

[4] Plasma channel produced by femtosecond laser pulses as a medium for amplifying electromagnetic radiation of the subterahertz frequency range [J].

Bogatskaya, A. V. ;

Volkova, E. A. ;

Popov, A. M. .

QUANTUM ELECTRONICS, 2013, 43 (12) :1110-1117

[5] On the possibility of the amplification of subterahertz electromagnetic radiation in a plasma channel created by a high-intensity ultrashort laser pulse [J].

Bogatskaya, A. V. ;

Popov, A. M. .

JETP LETTERS, 2013, 97 (07) :388-392

[6]

BUNKIN F.V., 1973, SOV PHYS USP, V15, P416

[7] Microwave guiding in air by a cylindrical filament array waveguide [J].

Chateauneuf, M. ;

Payeur, S. ;

Dubois, J. ;

Kieffer, J. -C. .

APPLIED PHYSICS LETTERS, 2008, 92 (09)

[8]

Chin S. L., 2010, FEMTOSECOND LASER FI

[9] Femtosecond filamentation in transparent media [J].

Couairon, A. ;

Mysyrowicz, A. .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2007, 441 (2-4) :47-189

[10] Forward THz radiation emission by femtosecond filamentation in gases: theory and experiment [J].

D'Amico, C. ;

Houard, A. ;

Akturk, S. ;

Liu, Y. ;

Le Bloas, J. ;

Franco, M. ;

Prade, B. ;

Couairon, A. ;

Tikhonchuk, V. T. ;

Mysyrowicz, A. .

NEW JOURNAL OF PHYSICS, 2008, 10

← 1 2 3 →