Nonlinear heating of underdense collisional plasma by a laser pulse
The nonlinear interaction of a laser pulse with a homogenous unmagnetized underdense plasma, taking ohmic heating and the effects of ponderomotive force into account, is theoretically studied. Since the ponderomotive force modifies the electrons density and temperature distribution, the nonlinear di...
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| Veröffentlicht in: | Physics of plasmas 2011-05, Vol.18 (5), p.053111-053111-4 |
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| container_end_page | 053111-4 |
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| container_issue | 5 |
| container_start_page | 053111 |
| container_title | Physics of plasmas |
| container_volume | 18 |
| creator | Abari, M. Etehadi Shokri, B. |
| description | The nonlinear interaction of a laser pulse with a homogenous unmagnetized underdense plasma, taking ohmic heating and the effects of ponderomotive force into account, is theoretically studied. Since the ponderomotive force modifies the electrons density and temperature distribution, the nonlinear dielectric permittivity of plasma is obtained in non-relativistic regime. Furthermore, electric and magnetic fields, electron density, temperature distribution, and the effective permittivity variations are obtained in terms of plasma length by making use the steady state solutions of the Maxwell and hydrodynamic equations. It is shown that the oscillations wave length of electric and magnetic fields decreases when the laser intensity increases. At the same time, in this case, electron density oscillations become highly peaked. Also, the amplitude of the electron temperature oscillations increase and their wavelength decreases. |
| doi_str_mv | 10.1063/1.3589280 |
| format | Article |
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Etehadi ; Shokri, B.</creator><creatorcontrib>Abari, M. Etehadi ; Shokri, B.</creatorcontrib><description>The nonlinear interaction of a laser pulse with a homogenous unmagnetized underdense plasma, taking ohmic heating and the effects of ponderomotive force into account, is theoretically studied. Since the ponderomotive force modifies the electrons density and temperature distribution, the nonlinear dielectric permittivity of plasma is obtained in non-relativistic regime. Furthermore, electric and magnetic fields, electron density, temperature distribution, and the effective permittivity variations are obtained in terms of plasma length by making use the steady state solutions of the Maxwell and hydrodynamic equations. It is shown that the oscillations wave length of electric and magnetic fields decreases when the laser intensity increases. At the same time, in this case, electron density oscillations become highly peaked. 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Etehadi</creatorcontrib><creatorcontrib>Shokri, B.</creatorcontrib><title>Nonlinear heating of underdense collisional plasma by a laser pulse</title><title>Physics of plasmas</title><description>The nonlinear interaction of a laser pulse with a homogenous unmagnetized underdense plasma, taking ohmic heating and the effects of ponderomotive force into account, is theoretically studied. Since the ponderomotive force modifies the electrons density and temperature distribution, the nonlinear dielectric permittivity of plasma is obtained in non-relativistic regime. Furthermore, electric and magnetic fields, electron density, temperature distribution, and the effective permittivity variations are obtained in terms of plasma length by making use the steady state solutions of the Maxwell and hydrodynamic equations. It is shown that the oscillations wave length of electric and magnetic fields decreases when the laser intensity increases. At the same time, in this case, electron density oscillations become highly peaked. Also, the amplitude of the electron temperature oscillations increase and their wavelength decreases.</description><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>COLLISIONAL PLASMA</subject><subject>DIELECTRIC PROPERTIES</subject><subject>DIFFERENTIAL EQUATIONS</subject><subject>ELECTRIC FIELDS</subject><subject>ELECTRICAL PROPERTIES</subject><subject>ELECTRON DENSITY</subject><subject>ELECTRON TEMPERATURE</subject><subject>EQUATIONS</subject><subject>HEATING</subject><subject>LASER-RADIATION HEATING</subject><subject>LASERS</subject><subject>MAGNETIC FIELDS</subject><subject>MAXWELL EQUATIONS</subject><subject>NONLINEAR PROBLEMS</subject><subject>PARTIAL DIFFERENTIAL EQUATIONS</subject><subject>PERMITTIVITY</subject><subject>PHYSICAL PROPERTIES</subject><subject>PLASMA</subject><subject>PLASMA HEATING</subject><subject>PLASMA WAVES</subject><subject>PONDEROMOTIVE FORCE</subject><subject>TEMPERATURE DISTRIBUTION</subject><subject>VARIATIONS</subject><issn>1070-664X</issn><issn>1089-7674</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp1kDtLBDEUhYMouK4W_oOAlcWsyeQ5jSCDL1i0UbALmTzcyGwyJLPF_ntn2MXO6pzi43DvB8A1RiuMOLnDK8JkU0t0AhYYyaYSXNDTuQtUcU6_zsFFKT8IIcqZXID2LcU-RKcz3Dg9hvgNk4e7aF22LhYHTer7UEKKuodDr8tWw24PNZyqy3DY9cVdgjOvp7w65hJ8Pj1-tC_V-v35tX1YV4bgeqyYJcgZ5IRurMFN5zntJDZea0wMZR2zFhEtjBSW1hQLxgV2zHeGaz-d35EluDnspjIGVUwYndmYFKMzo6oxI0ISNFG3B8rkVEp2Xg05bHXeK4zU7EhhdXQ0sfcHdh6bvk_xf_hPlDqKUsmTX0RBbos</recordid><startdate>20110501</startdate><enddate>20110501</enddate><creator>Abari, M. Etehadi</creator><creator>Shokri, B.</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20110501</creationdate><title>Nonlinear heating of underdense collisional plasma by a laser pulse</title><author>Abari, M. Etehadi ; Shokri, B.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c312t-5d30ec0e7a9dc19bf64b81cfaa13c45b5dd03a7c87d424175671e5fbc6af107b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</topic><topic>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</topic><topic>COLLISIONAL PLASMA</topic><topic>DIELECTRIC PROPERTIES</topic><topic>DIFFERENTIAL EQUATIONS</topic><topic>ELECTRIC FIELDS</topic><topic>ELECTRICAL PROPERTIES</topic><topic>ELECTRON DENSITY</topic><topic>ELECTRON TEMPERATURE</topic><topic>EQUATIONS</topic><topic>HEATING</topic><topic>LASER-RADIATION HEATING</topic><topic>LASERS</topic><topic>MAGNETIC FIELDS</topic><topic>MAXWELL EQUATIONS</topic><topic>NONLINEAR PROBLEMS</topic><topic>PARTIAL DIFFERENTIAL EQUATIONS</topic><topic>PERMITTIVITY</topic><topic>PHYSICAL PROPERTIES</topic><topic>PLASMA</topic><topic>PLASMA HEATING</topic><topic>PLASMA WAVES</topic><topic>PONDEROMOTIVE FORCE</topic><topic>TEMPERATURE DISTRIBUTION</topic><topic>VARIATIONS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Abari, M. Etehadi</creatorcontrib><creatorcontrib>Shokri, B.</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Physics of plasmas</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Abari, M. Etehadi</au><au>Shokri, B.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Nonlinear heating of underdense collisional plasma by a laser pulse</atitle><jtitle>Physics of plasmas</jtitle><date>2011-05-01</date><risdate>2011</risdate><volume>18</volume><issue>5</issue><spage>053111</spage><epage>053111-4</epage><pages>053111-053111-4</pages><issn>1070-664X</issn><eissn>1089-7674</eissn><coden>PHPAEN</coden><abstract>The nonlinear interaction of a laser pulse with a homogenous unmagnetized underdense plasma, taking ohmic heating and the effects of ponderomotive force into account, is theoretically studied. Since the ponderomotive force modifies the electrons density and temperature distribution, the nonlinear dielectric permittivity of plasma is obtained in non-relativistic regime. Furthermore, electric and magnetic fields, electron density, temperature distribution, and the effective permittivity variations are obtained in terms of plasma length by making use the steady state solutions of the Maxwell and hydrodynamic equations. It is shown that the oscillations wave length of electric and magnetic fields decreases when the laser intensity increases. At the same time, in this case, electron density oscillations become highly peaked. Also, the amplitude of the electron temperature oscillations increase and their wavelength decreases.</abstract><cop>United States</cop><pub>American Institute of Physics</pub><doi>10.1063/1.3589280</doi></addata></record> |
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| identifier | ISSN: 1070-664X |
| ispartof | Physics of plasmas, 2011-05, Vol.18 (5), p.053111-053111-4 |
| issn | 1070-664X 1089-7674 |
| language | eng |
| recordid | cdi_osti_scitechconnect_21537830 |
| source | AIP Journals Complete; AIP Digital Archive; Alma/SFX Local Collection |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COLLISIONAL PLASMA DIELECTRIC PROPERTIES DIFFERENTIAL EQUATIONS ELECTRIC FIELDS ELECTRICAL PROPERTIES ELECTRON DENSITY ELECTRON TEMPERATURE EQUATIONS HEATING LASER-RADIATION HEATING LASERS MAGNETIC FIELDS MAXWELL EQUATIONS NONLINEAR PROBLEMS PARTIAL DIFFERENTIAL EQUATIONS PERMITTIVITY PHYSICAL PROPERTIES PLASMA PLASMA HEATING PLASMA WAVES PONDEROMOTIVE FORCE TEMPERATURE DISTRIBUTION VARIATIONS |
| title | Nonlinear heating of underdense collisional plasma by a laser pulse |
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