| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Nonlinear mixing-based terahertz emission in inclined rippled density plasmas |
| K Gopal1, A P Singh1, and S Divya2,† |
1 Rajdhani College, Department of Physics&Electronics, University of Delhi, New Delhi, India;
2 Computational Plasma Dynamics Laboratory, Rajdhani College, Department of Physics&Electronics, University of Delhi, New Delhi, India |
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Abstract We propose to investigate the THz field generation using nonlinear mixing mechanism of laser beat wave with inclined rippled density plasmas. Two laser pulses with frequencies $(\omega_1, \omega_2)$ and wave vectors $(k_1, k_2)$ co-propagate and resultant laser beat wave forms at beat frequency $(\omega_1-\omega_2)$. Laser beat wave imparts a nonlinear force on the ambient electrons and pushes them outward with nonlinear velocity $v_{\rm NL}$. Coupling of induced density perturbation and nonlinear velocity $v_{\rm NL}$ generates nonlinear currents at laser beat frequency that further generates electromagnetic field $E_{(\omega_1-\omega_2)}$ in terahertz (THz) range. In the present scheme, density ripples are introduced at an angle with respect to laser propagation and flat Gaussian index ($f$) is introduced in laser field profile that transform curved top of Gaussian field envelope into flat top field envelope. The combined effect of flat laser pulses with inclined density ripples in plasmas shows 10-fold enhancement in THz field amplitude when flat-Gaussian index ($f$) varies from 1 to 4. Also, the THz field intensifies when density ripples inclination increases upto a certain angle and then decreases.
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Received: 27 September 2022
Revised: 07 November 2022
Accepted manuscript online: 08 December 2022
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PACS:
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52.38.-r
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(Laser-plasma interactions)
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52.65.-y
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(Plasma simulation)
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52.35.Mw
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(Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.))
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Corresponding Authors:
S Divya
E-mail: dsingh@rajdhani.du.ac.in
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Cite this article:
K Gopal, A P Singh, and S Divya Nonlinear mixing-based terahertz emission in inclined rippled density plasmas 2023 Chin. Phys. B 32 065202
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[1] Dragoman D and Dragoman M 2004 Progress in Quantum Electron 28 1
[2] Mittleman D M, Jacobsen R H and Nuss M C 1996 IEEE J. Select. Top. Quantum Electron. 2 679
[3] Chen M, Wang Y, Wang Y and Li L 2022 Front. Phys. 10 855623
[4] Son J H, Oh J S and Cheon H 2019 J. Appl. Phys. 125 190901
[5] Bhasin L and Tripathi V K 2009 Phys. Plasmas 16 103105
[6] Shi W, Wang Z, Hou L, Wang H, Wu M and Li C A 2021 Front. Phys. 9 751128
[7] Liu X, Meng Q H, Ding J, Bai, Wang J H, Zhang C, Su B and Zhang C L 2022 Chin. Phys. B 31 028701
[8] Lan C, Bi K, Li B, Zhao Y and Qu Z 2017 Opt. Express 25 29155
[9] Guan Z, Wang G L, Zhang L, Jiao Z H, Zhao S F and Zhou X X 2021 Chin. Phys. Lett. 38 054201
[10] Szymańki M, Szerling A and Kosiel K 2015 Opt. Quantum Electron. 47 843
[11] Hamster H, Sullivan A, Gordon S, White W and Falcone R W 1993 Phys. Rev. Lett. 71 2725
[12] Peng Q, Peng Z, Lang Y, Zhu Y, Zhang D, Lü Z and Zhao Z 2022 Chin. Phys. Lett. 39 053301
[13] Sheng Z M, Mima K, Zhang J and Sanuki H 2005 Phys. Rev. Lett. 94 095003
[14] Yoshii J, Lai C H, Katsouleas T, Joshi C and Mori W B 1997 Phys. Rev. Lett. 79 4194
[15] Li Y T, Wang W M, Li C and Sheng Z M 2012 Chin. Phys. B 21 095203
[16] Wu H C, Meyer-Ter-Vehn J, Ruhl H and Sheng Z M 2011 Phys. Rev. E 83 036407
[17] Rizaev G E, Seleznev L V, Mokrousova D V, Pushkarev D V and Ionin A A 2022 Opt. Lett. 47 5917
[18] Sheng W, Tang F, Zhang Z, Chen Y, Peng X Y and Sheng Z M 2011 Opt. Express 29 8676
[19] Singh D and Malik H K 2014 Phys. Plasmas 21 083105
[20] Singh D and Malik H K 2015 Plasma Sources Sci. Technology 24 045001
[21] Koulouklidis A D, Gollner C, Shumakova V, et al. 2020 Nat. Commun. 11 292
[22] Shu X F, Yu C X and Liu J 2019 Opt. Express 27 7751
[23] Zhang Z, Zhang J, Chen Y, Xia T, Wang L, Han B, He F, Sheng Z and Zhang J 2022 Ultrafast Science 2022 9870325
[24] Juneja H, Chauhan P and Panwar A 2022 Optik 268 169791
[25] Li Z Y, Zhao J, Yuan S, Jiao B Z, Bing P B, Zhang H T, Chen Z L, Tan L and Yao J Q 2022 Chin. Phys. B 31 044205
[26] Li H, Zhang Z P and Yang X 2022 Chin. Phys. B 31 035202
[27] Kumar M and Tripathi V K 2012 Phys. Plasmas 19 073109
[28] Singh D and Malik H K 2020 Phys. Rev. E 101 043207
[29] Li M, Li A Y, He B Q, Yuan S and Zeng H P 2016 Chin. Phys. B 25 044209
[30] Zhang S, Zhou W, Yin Y, Zou D, Zhao N, Xie D and Zhuo H 2022 Chin. Phys. B 32 035201
[31] Gillen-Christandl K, Gillen G D, Piotrowicz M J and Saffman M 2016 Appl. Phys. B 122 1
[32] Pathak V B, Dahiya D and Tripathi V K 2009 J. Appl. Phys. 105 013315
[33] Pai C H, Huang S Y, Kuo C C, Lin M W, Wang J and Chen S Y 2005 Phys. Plasmas 12 070707
[34] Bhasin L and Tripathi V K 2011 Phys. Plasmas 18 123106
[35] Varshney P, Singh A P, Kundu M and Gopal K 2022 Opt. Quantum Electron. 54 222
[36] Arfken G and Weber H 2005 Mathematical Methods for Physicists, 6th edn. (Boston: Elsevier AP)
[37] Malik A K, Malik H K and Nishida Y 2011 Phys. Lett. A 375 1191
[38] Varshney P, Singh A P, Upadhyaay A, Kundu M and Gopal K 2022 Optik 250 168353
[39] Divya S 2020 Plasma Res. Express 2 045003 |
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