Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-23T04:54:28.885Z Has data issue: false hasContentIssue false
  • English
  • Français

Stimulated Raman scattering of ultra intense hollow Gaussian beam in relativistic plasma

Published online by Cambridge University Press:  17 June 2015

Prerana Sharma
Prerana Sharma*
Affiliation:
Physics Department, Ujjain Engineering College, Ujjain, India
*
Address correspondence and reprint requests to: Prerana Sharma, Physics Department, Ujjain Engineering College, Ujjain, M. P. 456010, India. E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

Effect of relativistic nonlinearity on stimulated Raman scattering (SRS) of laser beam propagating carrying null intensity in center [hollow Gaussian beam (HGB)] is studied in collisionless plasma. The construction of the equations is done employing the fluid theory which is developed with partial differential equation and Maxwell's equations. The phenomenon of SRS is shown along with the excitation of seed plasma wave considering relativistic nonlinearity. The power of plasma wave is observed for higher order of HGB. The Raman back reflectivity is studied numerically for various orders of hollow Gaussian laser beam (HGLB) and the numerical analysis shows that these parameters play vital role on reflectivity characteristics. It is observed that the Raman back reflectivity is less for the higher order of HGLB.

Keywords

Hollow Gaussian beamRelativistic nonlinearityStimulated Raman scattering
Type
Research Article
Information
Laser and Particle Beams , Volume 33 , Issue 3 , September 2015 , pp. 489 - 498
Copyright
Copyright © Cambridge University Press 2015 

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

REFERENCES

Akhmanov, S.A., Sukhorukov, A.P. & Khokhlov, R.V. (1968). Self-focusing and diffraction of light in a nonlinear medium. Sov. Phys. Usp. 10, 609–636.CrossRefGoogle Scholar
Bers, A., Shkarofsky, I.P. & Shoucri, M. (2009). Relativistic Landau damping of electron plasma waves in stimulated Raman scattering. Phys. Plasmas 16, 022104.CrossRefGoogle Scholar
Borisov, A., Borovisky, A.V., Korobkin, V.V., Prokhorov, A.M., Shiryaev, O.B., Shi, X.M., Luk, T.S., McPherson, A., Solem, J.C., Boyer, K. & Rhodes, C.K. (1992). Observation of relativistic and charge-displacement self-channeling of intense subpicosecond ultraviolet (248 nm) radiation in plasmas. Phys. Rev. Lett. 68, 2309.CrossRefGoogle ScholarPubMed
Gao, W., Lu, Z.W., Wang, S.Y., He, W.M. & Hasi, W.L.J. (2010). Measurement of stimulated Brillouin scattering threshold by the optical limiting of pump output energy. Laser Part. Beams 28, 179–184.CrossRefGoogle Scholar
Gill, T.S., Mahajan, R. & Kaur, R. (2010). Relativistic and ponderomotive effects on evolution of dark hollow Gaussian electromagnetic beams in a plasma. Laser Part. Beams 28, 521–529.CrossRefGoogle Scholar
Grow, D.T., Ishaaya, A.A., Vuong, L.T. & Gaeta, A.L. (2006). Collapse dynamics of supper-Gaussian beam. Opt. Soc. Am. 14, 5468.Google Scholar
Gupta, M.K., Sharma, R.P. & Mahmoud, S.T. (2007). Generation of plasma wave and third harmonic generation at ultra relativistic laser power. Laser Part. Beams 25, 211–218.CrossRefGoogle Scholar
Gupta, R., Rafat, M. & Sharma, R.P. (2011 b). Effect of relativistic self-focusing on plasma wave excitation by a hollow Gaussian beam. J. Plasma Phys. 77, 777–784.CrossRefGoogle Scholar
Gupta, R., Sharma, P., Rafat, M. & Sharma, R.P. (2011 a). Cross-focusing of two hollow Gaussian laser beam in plasma. Laser Part. Beams 29, 227–230.CrossRefGoogle Scholar
Hora, H., Miley, G.H., Ghoranneviss, M. & Salar Elahi, A. (2013). Application of picosecond terawatt laser pulses for fast ignition of fusion. Laser Part. Beams 31, 249–256.CrossRefGoogle Scholar
Kruer, W.L. (1974). The Physics of Laser Plasma Interaction. New York: Addison-Wesley.Google Scholar
Kumar, N., Tripathi, V.K. & Sawhney, B.K. (2006). Filamentation of a relativistic short pulse laser in a plasma. Phys. Scr. 73, 659.CrossRefGoogle Scholar
Mahmoud, S.T. & Sharma, R.P. (2001). Relativistic self-focusing and its effect on stimulated Raman and stimulated Brillouin scattering in laser plasma interaction. Phys. Plasmas 8, 3186.CrossRefGoogle Scholar
Max, C.E., Arons, J. & Langdon, B. (1974). Self-modulation and self-focusing of electromagnetic waves in plasmas. Phys. Rev. Lett. 33, 209.CrossRefGoogle Scholar
Milchberg, H.M., Durfee, C.G. & Cilarth, M. (1995). High order frequency conversion in the plasma wave guide. Phys. Rev. Lett. 75, 2494–2497.CrossRefGoogle Scholar
Paknezhad, A. (2013 a). Brillouin backward scattering in the nonlinear interaction of a short-pulse laser with an underdense transversely magnetized plasma. Laser Part. Beams 31, 313319.CrossRefGoogle Scholar
Paknezhad, A. (2013 b). Nonlinear Raman forward scattering of a short laser pulse in a collisional transversely magnetized plasma. Phys. Plasmas 20, 012110.CrossRefGoogle Scholar
Paknezhad, A. & Dorranian, D. (2011). Nonlinear backward Raman scattering in the short laser pulse interaction with a cold underdense transversely magnetized plasma. Laser Part. Beams 29, 373–380.CrossRefGoogle Scholar
Purohit, G., Chauhan, P.K. & Sharma, R.P. (2008). Excitation of an upper hybrid wave by a high power laser beam in plasma. Laser Part. Beams 26, 61–67.CrossRefGoogle Scholar
Purohit, G., Chauhan, P.K., Sharma, R.P. & Pandey, H.D. (2005). Effect of relativistic mutual interaction of two laser beams on the growth of laser ripple in plasma. Laser Part. Beams 23, 69–77.CrossRefGoogle Scholar
Purohit, G., Pandey, H.D., Mahmoud, S.T. & Sharma, R.P. (2004). Growth of high-power laser ripple in plasma and its effect on plasma wave excitation: Relativistic effects. J. Plasma Phys. 70, part 1, 25.CrossRefGoogle Scholar
Purohit, G., Sharma, P. & Sharma, R.P. (2012). Filamentation of laser beam and suppression of stimulated Raman scattering due to localization of electron plasma wave. J. Plasma Phys. 78, 55–63.CrossRefGoogle Scholar
Saini, N.S. & Gill, T.S. (2006). Self-focusing and self-phase modulation of an elliptic Gaussian laser beam in collisionless magnetoplasma. Laser Part. Beams 24, 447–453.CrossRefGoogle Scholar
Sharma, R.P. & Gupta, M.K. (2006). Effect of relativistic and ponderomotive nonlinearities on stimulated Raman scattering in laser plasma interaction. Phys. Plasmas 13, 1.CrossRefGoogle Scholar
Sharma, R.P. & Sharma, P. (2009 a). Suppression of stimulated Raman scattering due to localization of electron plasma wave in laser beam filaments. Phys. Plasmas 16, 032301.CrossRefGoogle Scholar
Sharma, R.P. & Sharma, P. (2009 b). Effect of laser beam filamentation on second harmonic spectrum in laser plasma interaction. Laser Part. Beams 27, 157–169.CrossRefGoogle Scholar
Sharma, R.P. & Singh, R.K. (2013). Stimulated Brillouin backscattering of filamented hollow Gaussian beams. Laser Part. Beams 8, 1.Google Scholar
Sharma, R.P., Sharma, P., Rajput, S. & Bhardwaj, A.K. (2009). Suppression of stimulated Brillouin scattering in laser beam hot spots. Laser Part. Beams 27, 619–627.CrossRefGoogle Scholar
Sharma, R.P., Vyas, A. & Singh, R.K. (2013). Effect of laser beam filamentation on coexisting stimulated Raman and Brillouin scattering. Phys. Plasmas 20, 102108.CrossRefGoogle Scholar
Singh, M., Singh, R.K. & Sharma, R.P. (2013). THz generation by cosh-Gaussian lasers in a rippled density plasma. Euro. Phys. Lett. 104, 35002.CrossRefGoogle Scholar
Singh, R.K. & Sharma, R.P. (2013). Stimulated Raman backscattering of filamented hollow Gaussian beams. Laser Part. Beams 31, 387–394.CrossRefGoogle Scholar
Sodha, M.S., Misra, S.K. & Misra, S. (2009 a). Focusing of a dark hollow Gaussian electromagnetic beam in a magnetoplasma. J. Plasma Phys. 75, 731–748.CrossRefGoogle Scholar
Sodha, M.S., Misra, S.K. & Misra, S. (2009 b). Focusing of dark hollow Gaussian electromagnetic beams in a plasma. Laser Part. Beams 27, 57–68.CrossRefGoogle Scholar
Sodha, M.S., Tripathi, V.K. & Ghatak, A.K. (1976). Seif-focusing of laser beams in plasmas and semiconducters. Prog. Opt. 13, 169–265.CrossRefGoogle Scholar
Sun, G.-Z., Ott, E., Lee, Y.C. & Guzdar, P. (1987). Self-focusing of short intense pulses in plasmas. Phys. Fluids 30, 526.CrossRefGoogle Scholar
Turnbull, D., Li, S., Morozov, A. & Suckewer, S. (2012 a). Possible origins of a time-resolved frequency shift in Raman plasma amplifiers. Phys. Plasmas 19, 073103.CrossRefGoogle Scholar
Turnbull, D., Li, S., Morozov, A. & Suckewer, S. (2012 b). Simultaneous stimulated Raman, Brillouin, and electron-acoustic scattering reveals a potential saturation mechanism in Raman plasma amplifiers. Phys. Plasmas 19, 083109.CrossRefGoogle Scholar
Verma, K., Sajal, V., Varshney, P., Kumar, R. & Sharma, N.K. (2014). Stimulated Raman scattering of beat wave of two counter-propagating X-mode lasers in a magnetized plasma. Phys. Plasmas 21, 022104.CrossRefGoogle Scholar