Stronger self-focusing of a chirped pulse laser with exponential density ramp profile in cold quantum magnetoplasma

被引：30

作者：

Thakur, Vishal ^{[1
]}

Kant, Niti ^{[1
]}

机构：

[1] Lovely Profess Univ, Dept Phys, GT Rd, Phagwara 144411, Punjab, India

来源：

OPTIK | 2018年 / 172卷

关键词：

Self-focusing; Exponential plasma density ramp; Chirped pulse laser; Cold quantum plasma; RESONANT 2ND-HARMONIC GENERATION; PLASMA INTERACTION; MAGNETIZED-PLASMA; BEAM; RADIATION; DRIVEN; PROPAGATION; ACCELERATOR; BLOCKS; LIGHT;

D O I：

10.1016/j.ijleo.2018.07.027

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Stronger self-focusing of chirped pulse laser with exponential plasma density ramp profile in cold quantum magnetoplasma has been presented. Low value of the beam width parameter in the focal region due to nonlinear dielectric role of relativistic plasma with exponential density transition is observed. Further, the significant contribution of the cold quantum magnetoplasma with the optimized value of magnetic field lead to enhanced self-focusing. Here, in this present manuscript we have observed stronger self-focusing with increased value of the chirp parameter 'b'. Also intensity of the laser beam imparts chief role in achieving the stronger self-focusing. The present work may have very valuable applications in the field of laser driven accelerators, laser driven fusion etc.

引用

页码：191 / 196

页数：6

共 37 条

[1] Propagation of Gaussian laser beam through magnetized cold plasma with increasing density ramp [J].

Aggarwal, Munish ;

Kumar, Harish ;

Kant, Niti .

OPTIK, 2016, 127 (04) :2212-2216

[2] SELF-FOCUSING AND DIFFRACTION OF LIGHT IN A NONLINEAR MEDIUM [J].

AKHMANOV, SA ;

SUKHORUKOV, AP ;

KHOKHLOV, RV .

SOVIET PHYSICS USPEKHI-USSR, 1968, 10 (05) :609-+

[3] Studies on laser-driven generation of fast high-density plasma blocks for fast ignition [J].

Badziak, J. ;

Glowacz, S. ;

Hora, H. ;

Jablonski, S. ;

Wolowski, J. .

LASER AND PARTICLE BEAMS, 2006, 24 (02) :249-254

[4]

Boyd R. W., 2009, SELF FOCUSING PRESEN, P114

[5] Relativistic laser-matter interaction and relativistic laboratory astrophysics [J].

Bulanov, S. V. ;

Esirkepov, T. Zh. ;

Habs, D. ;

Pegoraro, F. ;

Tajima, T. .

EUROPEAN PHYSICAL JOURNAL D, 2009, 55 (02) :483-507

[6] Laser wakefield acceleration using wire produced double density ramps [J].

Burza, M. ;

Gonoskov, A. ;

Svensson, K. ;

Wojda, F. ;

Persson, A. ;

Hansson, M. ;

Genoud, G. ;

Marklund, M. ;

Wahlstrom, C. -G. ;

Lundh, O. .

PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS, 2013, 16 (01)

[7] Effects of pulse duration on self-focusing of ultra-short lasers in underdense plasmas [J].

Faure, J ;

Malka, V ;

Marquès, JR ;

David, PG ;

Amiranoff, F ;

Phuoc, KT ;

Rousse, A .

PHYSICS OF PLASMAS, 2002, 9 (03) :756-759

[8] Additional focusing of a high-intensity laser beam in a plasma with a density ramp and a magnetic field [J].

Gupta, Devki Nandan ;

Hur, Min Sup ;

Suk, Hyyong .

APPLIED PHYSICS LETTERS, 2007, 91 (08)

[9] Non-stationary self-focusing of intense laser beam in plasma using ramp density profile [J].

Habibi, M. ;

Ghamari, F. .

PHYSICS OF PLASMAS, 2011, 18 (10)

[10]

Hass F., 2011, QUANTUM PLASMAS HYDR

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