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Air breakdown by perpendicularly intersecting high-power microwave (HPM) is investigated by numerical solution of fluid-based plasma equations coupled with the Maxwell equations. For two coherently intersecting HPM beams, collisional cascade breakdown takes place only when the initial free electrons appear in or arrive at a region of strong electric field, where the electron can be accelerated. At the initial stage of discharge, the filamentary plasma moves along the strong field and forms plasma-filament band. When the plasma-filament band grows long enough, in the vicinity of which the two HPM beams are separated due to its scattering and absorption by plasma. The new plasma-filament bands continue to appear as time increases. It is also found that under the same condition, the plasma region produced by incoherent beams is smaller than by coherent beams.
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Keywords:
- intersecting high-power microwave /
- air breakdown
[1] Gurevich A, Borisov N, Milikh G 1997 Physics of Microwave Discharges (New York: Gordon and Breach)
[2] Raizer Y P 1991 Gas Discharge Physics ( Berlin: Springer)
[3] Gurevich A V, Litvak A G, Vikharev A L, Ivanov O A, Borisov N D, Sergechev K F 2000 Phys. Usp. 43 1103
[4] Gurevich A V 1980 Sov. Phys. Usp. 23 862
[5] Vidmar R J 1990 IEEE Trans. Plasma Sci. 8 733
[6] Eastland B J 2007 US Patent 0215946 A1
[7] Vikharev A L, Ivanov O A, Litvak A G 2004 IEEE Trans. on Plasma Sci. 24 460
[8] MacDonald A D 1966 Microwave Breakdown in Gases (New York: John Wiley & Son. )
[9] Popovic S, Vuskovic L, Esakov I I, Grachev L P, Khodataev K V 2002 Appl. Phys. Lett. 81 1964
[10] Esakov I I, Grachev L P, Khodataev K V, Bychkov V L, van Wie D M 2007 IEEE Trans. Plasma Sci. 35 1658
[11] Hidaka Y, Choi E M, Mastovsky I, Shapiro M A, Sirigiri J R, Temkin R J 2008 Phys. Rev. Lett. 100 035003
[12] Hidaka Y, Choi E M, Mastovsky I, Shapiro M A, Sirigiri J R, Temkin R J, Edmiston G F, Neuber A A, Oda Y 2009 Phys. Plasmas 16 055702
[13] Cook A, Shapiro M, Temkin R 2010 Appl. Phys. Lett. 97 011504
[14] Nam S K, Verboncoeur J P 2009 Phys. Rev. Lett. 103 055004
[15] Boeuf J P, Chaudhury B, Zhu G Q 2010 Phys. Rev. Lett. 104 015002
[16] Chaudhury B, Boeuf J P, Zhu G Q 2012 Phys. Plasmas 17 123505
[17] Chaudhury B, Boeuf J P 2010 IEEE Trans. Plasma Sci. 38 2281
[18] Zhou Q H, Dong Z W 2011 Appl. Phys. Lett. 98 161504
[19] Zhou Q H, Dong Z W, Chen J Y 2011 Acta Phys. Sin. 60 0125202 (in Chinese) [周前红, 董志伟, 陈京元 2011 60 125202]
[20] Kuo S P, Zhang Y S 1991 Phys. Fluids B 3 2906
[21] Cummer S A 1997 IEEE Trans. Antennas Propagat. 45 392
[22] Taflove A 2005 Computational Electrodynamics: the Finite Difference Time Domain Method (3rd Ed.) (MA: Artech House)
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[1] Gurevich A, Borisov N, Milikh G 1997 Physics of Microwave Discharges (New York: Gordon and Breach)
[2] Raizer Y P 1991 Gas Discharge Physics ( Berlin: Springer)
[3] Gurevich A V, Litvak A G, Vikharev A L, Ivanov O A, Borisov N D, Sergechev K F 2000 Phys. Usp. 43 1103
[4] Gurevich A V 1980 Sov. Phys. Usp. 23 862
[5] Vidmar R J 1990 IEEE Trans. Plasma Sci. 8 733
[6] Eastland B J 2007 US Patent 0215946 A1
[7] Vikharev A L, Ivanov O A, Litvak A G 2004 IEEE Trans. on Plasma Sci. 24 460
[8] MacDonald A D 1966 Microwave Breakdown in Gases (New York: John Wiley & Son. )
[9] Popovic S, Vuskovic L, Esakov I I, Grachev L P, Khodataev K V 2002 Appl. Phys. Lett. 81 1964
[10] Esakov I I, Grachev L P, Khodataev K V, Bychkov V L, van Wie D M 2007 IEEE Trans. Plasma Sci. 35 1658
[11] Hidaka Y, Choi E M, Mastovsky I, Shapiro M A, Sirigiri J R, Temkin R J 2008 Phys. Rev. Lett. 100 035003
[12] Hidaka Y, Choi E M, Mastovsky I, Shapiro M A, Sirigiri J R, Temkin R J, Edmiston G F, Neuber A A, Oda Y 2009 Phys. Plasmas 16 055702
[13] Cook A, Shapiro M, Temkin R 2010 Appl. Phys. Lett. 97 011504
[14] Nam S K, Verboncoeur J P 2009 Phys. Rev. Lett. 103 055004
[15] Boeuf J P, Chaudhury B, Zhu G Q 2010 Phys. Rev. Lett. 104 015002
[16] Chaudhury B, Boeuf J P, Zhu G Q 2012 Phys. Plasmas 17 123505
[17] Chaudhury B, Boeuf J P 2010 IEEE Trans. Plasma Sci. 38 2281
[18] Zhou Q H, Dong Z W 2011 Appl. Phys. Lett. 98 161504
[19] Zhou Q H, Dong Z W, Chen J Y 2011 Acta Phys. Sin. 60 0125202 (in Chinese) [周前红, 董志伟, 陈京元 2011 60 125202]
[20] Kuo S P, Zhang Y S 1991 Phys. Fluids B 3 2906
[21] Cummer S A 1997 IEEE Trans. Antennas Propagat. 45 392
[22] Taflove A 2005 Computational Electrodynamics: the Finite Difference Time Domain Method (3rd Ed.) (MA: Artech House)
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