Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-26T15:53:39.908Z Has data issue: false hasContentIssue false
  • English
  • Français

Relativistic longitudinal self-compression of ultra-intense Gaussian laser pulses in magnetized plasma

Published online by Cambridge University Press:  19 August 2020

Gunjan Purohit Open the ORCID record for Gunjan Purohit [Opens in a new window] ,
Priyanka Rawat ,
Pradeep Kothiyal  and
Ramesh Kumar Sharma
Gunjan Purohit*
Affiliation:
Laser Plasma Computational Laboratory, Department of Physics, DAV (PG) College, Dehradun, Uttarakhand248001, India
Priyanka Rawat
Affiliation:
Laser Plasma Computational Laboratory, Department of Physics, DAV (PG) College, Dehradun, Uttarakhand248001, India
Pradeep Kothiyal
Affiliation:
Department of Mathematics, DAV (PG) College, Dehradun, Uttarakhand248001, India
Ramesh Kumar Sharma
Affiliation:
Laser Plasma Computational Laboratory, Department of Physics, DAV (PG) College, Dehradun, Uttarakhand248001, India
*
Author for correspondence: G. Purohit, Laser Plasma Computational Laboratory, Department of Physics, DAV (PG) College, Dehradun, Uttarakhand 248001, India. E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

This article presents a preliminary study of the longitudinal self-compression of ultra-intense Gaussian laser pulse in a magnetized plasma, when relativistic nonlinearity is active. This study has been carried out in 1D geometry under a nonlinear Schrodinger equation and higher-order paraxial (nonparaxial) approximation. The nonlinear differential equations for self-compression and self-focusing have been derived and solved by the analytical and numerical methods. The dielectric function and the eikonal have been expanded up to the fourth power of r (radial distance). The effect of initial parameters, namely incident laser intensity, magnetic field, and initial pulse duration on the compression of a relativistic Gaussian laser pulse have been explored. The results are compared with paraxial-ray approximation. It is found that the compression of pulse and pulse intensity of the compressed pulse is significantly enhanced in the nonparaxial region. It is observed that the compression of the high-intensity laser pulse depends on the intensity of laser beam (a0), magnetic field (ωc), and initial pulse width (τ0). The preliminary results show that the pulse is more compressed by increasing the values of a0, ωc, and τ0.

Keywords

Higher-order paraxial theorymagnetized plasmarelativistic nonlinearityself-compression
Type
Research Article
Information
Laser and Particle Beams , Volume 38 , Issue 3 , September 2020 , pp. 188 - 196
Check for updates
Copyright
Copyright © The Author(s) 2020. Published by Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Balakin, AA, Litvak, AG, Mironov, VA and Skobelev, SA (2012) Self-compression of relativistically strong femtosecond laser pulses during the excitation of a plasma wake wave. EPL (Europhysics Letters) 100, 34002.CrossRefGoogle Scholar
Bingham, R, Mendonca, JT and Shukla, PK (2004) Plasma based charged-particle accelerators. Plasma Physics and Controlled Fusion 46, R1–R23.CrossRefGoogle Scholar
Bokaei, B and Niknam, AR (2014) Weakly relativistic and ponderomotive effects on self-focusing and self-compression of laser pulses in near critical plasmas. Physics of Plasmas 21, 103107.CrossRefGoogle Scholar
Bokaei, B, Niknam, AR and Imani, E (2015) Spatiotemporal evolution of high-power laser pulses in relativistic magnetized inhomogeneous plasmas. Physics of Plasmas 2, 092310.CrossRefGoogle Scholar
Cao, X, Fang, F, Wang, Z and Lin, Q (2017) Relativistic longitudinal self-compression of ultrashort time-domain hollow Gaussian pulses in plasma. The European Physical Journal D 71, 256.CrossRefGoogle Scholar
Chessa, P, Mora, P and Antonsen, TM Jr. (1998) Numerical simulation of short laser pulse relativistic self-focusing in underdense plasma. Physics of Plasmas 5, 3451–3459.CrossRefGoogle Scholar
Faisal, M, Verma, MP and Sodha, MS (2008) Self-focusing of electromagnetic pulsed beams in collisional plasmas. Physics of Plasmas 15, 102301.CrossRefGoogle Scholar
Gamaly, EG, Rode, AV, Luther-davies, B and Tikhonchuk, VT (2002) Ablation of solids by femtosecond lasers: ablation mechanism and ablation thresholds for metals and dielectrics. Physics of Plasmas 9, 949–957.CrossRefGoogle Scholar
Gill, TS, Kaur, R and Mahajan, R (2010) Propagation of high-power electromagnetic beam in relativistic magnetoplasma: higher order paraxial ray theory. Physics of Plasmas 17, 093101.CrossRefGoogle Scholar
Gupta, PK, Sharma, S, Gaur, N, Singh, RK, Sharma, RP and Uma, R (2016) Laser pulse compression and intensity enhancement in plasma. Physics of Plasmas 23, 093122.CrossRefGoogle Scholar
Hauri, CP, Kornelis, W, Helbing, FW, Heinrich, A, Couairon, A, Mysyrowicz, A and Keller, U (2004) Generation of intense, carrier-envelope phase-locked few-cycle laser pulses through filamentation. Applied Physics B 79, 673–677.CrossRefGoogle Scholar
Karle, Ch and Spatschek, KH (2008) Relativistic laser pulse focusing and self-compression in stratified plasma-vacuum systems. Physics of Plasmas 15, 123102.CrossRefGoogle Scholar
Karlsson, M, Anderson, D, Desaix, M and Lisak, M (1991) Dynamic effects of Kerr nonlinearity and spatial diffraction on self-phase modulation of optical pulses. Optics Letters 16, 1373–1375.CrossRefGoogle ScholarPubMed
Kumar, S, Gupta, PK, Singh, RK, Sharma, S, Uma, R and Sharma, RP (2017) Pulse-compression and self-focusing of Gaussian laser pulses in plasma having relativistic–ponderomotive nonlinearity. Laser and Particle Beams 35, 429–436.CrossRefGoogle Scholar
Liang, Y, Sang, H-B, Wan, F and Bai-Song Xie, CL (2015) Relativistic laser pulse compression in magnetized plasmas. Physics of Plasmas 22, 073105.CrossRefGoogle Scholar
Liao, G, Li, YT, Li, C, Liu, H, Zhang, YH, Jian, WM, Yuan, X, Nilsen, J, Ozaki, T, Wang, WM, Sheng, ZM, Neely, D, Mckenna, P and Zhang, J (2017) Intense terahertz radiation from relativistic laser–plasma interactions. Plasma Physics and Controlled Fusion 59, 014039.CrossRefGoogle Scholar
Lontano, M and Murusidze, IG (2003) Dynamics of space-time self-focusing of a femtosecond relativistic laser pulse in an underdense plasma. Optics Express 11, 248–258.CrossRefGoogle Scholar
Malka, V (2010) Laser plasma accelerators. Physics of Plasmas 19, 055501.CrossRefGoogle Scholar
Mora, P and Antonsen, TM Jr (1997) Kinetic modeling of intense, short laser pulses propagating in tenuous plasmas. Physics of Plasmas 4, 217–229.CrossRefGoogle Scholar
Mourou, GA, Barty, CPJ and Perry, MD (2008) Ultrahigh-intensity lasers: physics of the extreme on a tabletop. Physics Today 51, 22–30.CrossRefGoogle Scholar
Olumi, M and Maraghechi, B (2014) Self-compression of intense short laser pulses in relativistic magnetized plasma. Physics of Plasmas 21, 113102.CrossRefGoogle Scholar
Pape, SLE, Divol, L, Macphee, A, Naney, JMC, Hohenberger, M, Froula, D, Glebov, V, Lande, OL, Stoeckl, C, Dewald, E, Khan, S, Yeamans, C, Michel, P, Schneider, M, Knauer, J, Kilkenny, J and Mackinnon, AJ (2019) Optimization of high energy X ray production through laser plasma interaction. High Energy Density Physics 31, 13–18.CrossRefGoogle Scholar
Purohit, G and Gaur, B (2019) Self-focusing of cosh-Gaussian laser beam and its effect on the excitation of ion-acoustic wave and stimulated Brillouin backscattering in collisionless plasma. Optical and Quantum Electronics 51, 398.CrossRefGoogle Scholar
Purohit, G, Sharma, P and Sharma, RP (2012) Filamentation of laser beam and suppression of stimulated Raman scattering due to localization of electron plasma wave. Journal of Plasma Physics 78, 55–63.CrossRefGoogle Scholar
Ren, C, Duda, BJ, Hemker, RG, Mori, WB, Katsouleas, T, Antonsen, TM Jr. and Mora, P (2001) Compressing and focusing a short laser pulse by a thin plasma lens. Physical Review E 63, 026411.CrossRefGoogle Scholar
Saedjalil, N and Jafari, S (2016) Self-focusing and self-compression of a laser pulse in the presence of an external tapered magnetized density-ramp plasma. High Energy Density Physics 19, 48–57.CrossRefGoogle Scholar
Schroeder, CB, Benedetti, C, Esarey, E and Leemans, WP (2011) Nonlinear pulse propagation and phase velocity of laser-driven plasma waves. Physical Review Letters 106, 135002.CrossRefGoogle ScholarPubMed
Sharma, A and Kourakis, I (2010) Relativistic laser pulse compression in plasmas with a linear axial density gradient. Plasma Physics and Controlled Fusion 52, 065002.CrossRefGoogle Scholar
Shi, Y, Qin, H and Fisch, NJ (2017) Laser-pulse compression using magnetized plasmas. Physical Review E 95, 023211.CrossRefGoogle ScholarPubMed
Shibu, S, Parasher, J and Pandey, HD (1998) Possibility of pulse compression of a short-pulse laser in a plasma. Journal of Plasma Physics 59, 91–96.CrossRefGoogle Scholar
Shorokhov, O, Pukhov, A and Kostyukov, I (2003) Self-compression of laser pulses in plasma. Physical Review Letters 91, 265002.CrossRefGoogle ScholarPubMed
Singh, M and Gupta, DN (2018) Laser-absorption effect on pulse-compression under Ohmic and weak-relativistic ponderomotive nonlinearity in plasmas. Laser Physics Letters 15, 016001.CrossRefGoogle Scholar
Sodha, MS and Faisal, M (2008) Propagation of high-power electromagnetic beams in overdense plasmas: higher order paraxial theory. Physics of Plasmas 15, 033102.CrossRefGoogle Scholar
Strickland, D and Mourou, G (1985) Compression of amplified chirped optical pulses. Optics Communications 56, 219–221.CrossRefGoogle Scholar
Stuart, BC, Feit, MD, Herman, S, Rubenchik, AM, Shore, BW and Perry, MD (1996) Optical ablation by high-power short-pulse lasers. Journal of the Optical Society of America B 13, 459–468.CrossRefGoogle Scholar
Subbarao, D, Uma, R and Singh, H (1998) Paraxial theory of self-focusing of cylindrical laser beams. I. ABCD law. Physics of Plasmas 5, 3440–3450.CrossRefGoogle Scholar
Tabak, M, Hammer, J, Glinsky, ME, Kruer, WL, Wilks, SC, Woodworth, J, Campbell, EM, Perry, MD and Mason, RJ (1994) Ignition and high gain with ultrapowerful lasers. Physics of Plasmas 1, 1626–1634.CrossRefGoogle Scholar
Wilson, TC, Li, FY, Weng, SM, Chen, M, Mckenna, P and Sheng, ZM (2019) Laser pulse compression towards collapse and beyond in plasma. Journal of Physics B: Atomic Molecular and Optical Physics 52, 055403.CrossRefGoogle Scholar