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Plasma pattern formation in 110 GHz microwave air breakdown is investigated by numerical solution of fluid-based plasmas equations coupled with the Maxwell equations. It is found that the filamentary plasmas are observed at high pressure, the filamentary plasmas transit to diffuse plasma at medium pressure, and the diffuse plasma is obtained at low pressure. The plasmas region propagates toward the microwave source. The distribution of initial electrons influences merely plasmas pattern at first stage, but not final plasmas pattern. The movements in the directions parallel and vertical to electric field are different. Due to the strong electric field at the poles of the plasmas region, the plasmas are elongated in the direction of electric field, forming the filamentary plasmas at much low pressure in E plane.
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Keywords:
- 110 GHz microwave /
- air breakdown /
- plasma filaments
[1] Gurevich A, Borisov N, Milikh G 1997 Physics of Microwave Discharges (New York: Gordon and Breach)
[2] Oda Y, Komurasaki K, Takahashi K 2006 J. Appl. Phys. 100 113307
[3] [4] [5] MacDonald A D 1966 Microwave Breakdown in Gases ( New York: John Wiley Sons)
[6] [7] Vikharev A L, Gorbachev A M, Kim A V, Kolsyko A L 1992 Sov. J. Plasma Phys. 18 554
[8] Popovic S, Exton R J, Herring G C 2005 Appl. Phys. Lett. 87 061502
[9] [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] [12] Hidaka Y, Choi E M, Mastovsky I, Shapiro M A, Sirigiri J R, Temkin R J 2008 Phys. Rev. Lett. 100 035003
[13] [14] 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
[15] [16] Cook A, Shapiro M, Temkin R 2010 Appl. Phys. Lett. 97 011504
[17] [18] [19] Nam S K, Verboncoeur J P 2009 Phys. Rev. Lett. 103 055004
[20] Boeuf J P, Chaudhury B, Zhu G Q 2010 Phys. Rev. Lett. 104 015002
[21] [22] [23] Chaudhury B, Boeuf J P, Zhu G Q 2010 Phys. Plasmas 17 123505
[24] Chaudhury B, Boeuf J P 2010 IEEE Trans. Plasma Sci. 38 2281
[25] [26] Kuo S P, Zhang Y S 1990 J. Appl. Phys. 67 2762
[27] [28] Becker K H, Kogelschatz U, Schoenbach K H, Barker R J 2005 Non-equilibrium Air Plasmas at Atmospheric Pressure (Bristo: IOP Publishing Ltd.)
[29] [30] Raizer R P 1991 Gas Discharge Physics (Berlin: Springer-Verlag)
[31] [32] [33] Cummer S A 1997 IEEE Trans. Antennas Propag. 45 392
[34] [35] Barashenkov V S, Grachev L P, Esakov I I, Kostenko B F, Khodataev K V, Yurev M Z 2000 Tech. Phys. 45 1406
[36] Ebert U, van Saarloos W, Caroli C 1996 Phys. Rev. Lett. 77 4178
[37] [38] Ebert U, van Saarloos W, Caroli C 1997 Phys. Rev. E 55 1530
[39] [40] [41] Wang X X, Lu M Z, Pu Y K 2002 Acta Phys. Sin.51 2778 (in Chinese)[王新新、芦明泽、蒲以康 2002 51 2778]
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[1] Gurevich A, Borisov N, Milikh G 1997 Physics of Microwave Discharges (New York: Gordon and Breach)
[2] Oda Y, Komurasaki K, Takahashi K 2006 J. Appl. Phys. 100 113307
[3] [4] [5] MacDonald A D 1966 Microwave Breakdown in Gases ( New York: John Wiley Sons)
[6] [7] Vikharev A L, Gorbachev A M, Kim A V, Kolsyko A L 1992 Sov. J. Plasma Phys. 18 554
[8] Popovic S, Exton R J, Herring G C 2005 Appl. Phys. Lett. 87 061502
[9] [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] [12] Hidaka Y, Choi E M, Mastovsky I, Shapiro M A, Sirigiri J R, Temkin R J 2008 Phys. Rev. Lett. 100 035003
[13] [14] 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
[15] [16] Cook A, Shapiro M, Temkin R 2010 Appl. Phys. Lett. 97 011504
[17] [18] [19] Nam S K, Verboncoeur J P 2009 Phys. Rev. Lett. 103 055004
[20] Boeuf J P, Chaudhury B, Zhu G Q 2010 Phys. Rev. Lett. 104 015002
[21] [22] [23] Chaudhury B, Boeuf J P, Zhu G Q 2010 Phys. Plasmas 17 123505
[24] Chaudhury B, Boeuf J P 2010 IEEE Trans. Plasma Sci. 38 2281
[25] [26] Kuo S P, Zhang Y S 1990 J. Appl. Phys. 67 2762
[27] [28] Becker K H, Kogelschatz U, Schoenbach K H, Barker R J 2005 Non-equilibrium Air Plasmas at Atmospheric Pressure (Bristo: IOP Publishing Ltd.)
[29] [30] Raizer R P 1991 Gas Discharge Physics (Berlin: Springer-Verlag)
[31] [32] [33] Cummer S A 1997 IEEE Trans. Antennas Propag. 45 392
[34] [35] Barashenkov V S, Grachev L P, Esakov I I, Kostenko B F, Khodataev K V, Yurev M Z 2000 Tech. Phys. 45 1406
[36] Ebert U, van Saarloos W, Caroli C 1996 Phys. Rev. Lett. 77 4178
[37] [38] Ebert U, van Saarloos W, Caroli C 1997 Phys. Rev. E 55 1530
[39] [40] [41] Wang X X, Lu M Z, Pu Y K 2002 Acta Phys. Sin.51 2778 (in Chinese)[王新新、芦明泽、蒲以康 2002 51 2778]
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