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We present the generation of terahertz pulses from a bulk GaP emitter fabricated with a micro-pyramid anti-reflection output coupling layer. The anti-reflection layer is designed by the graded effective refractive index principle. The micro-pyramid structure is manufactured by micro fabrication technique. The experimental results demonstrate that the micro structure layer can not only increase the output coupling efficiency but also scatter the transmitted pump power.
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Keywords:
- ultrafast terahertz wave /
- micro fabrication /
- micro-pyramid /
- anti-reflection layer
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[21] Fang F Z, Xiong Z, Hu X T 2006 J. Micromech. Microeng. 16 214
[22] Wang Y B, Wang C L, Xing Q R, Liu F, Li Y F, Chai L, Wang Q Y, Fang F Z, Zhang X D 2009 Appl. Opt. 48 1998
[23] Zhang X , Hu M L , Song Y J , Chai L , Wang C Y 2010 Acta Phys. Sin. 59 1863 (in Chinese) [张鑫, 胡明列, 宋有建, 柴路, 王清月 2010 物理学报 59 1863]
[24] Zhang Y Y , Zhang C , Hu M L , Wang S J , Song Y J , Chai L , Wang C Y 2010 Chin. Phys. B 19 014212
[25] Hoffmann M C, Turchinovich 2010 Appl. Phys. Lett. 96 151110
[26] Liu F, Li Y F, Xing Q R, Wang C L, Hu M L, Chai L, Wang C Y 2011 Chin. Opt. Lett. 9 S10201
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[1] Tonouchi M 2007 Nature Photon. 1 97
[2] Hebling J, Yeh K L, Hoffmann M C, Nelson K A 2008 IEEE J. Sel. Top. Quantum Electron. 14 345
[3] Lang L Y, Xing Q R, Li S X, Mao F L, Chai L, Wang Q Y 2004 Chin. Opt. Lett. 2 677
[4] Han P Y, Tani M, Usami M, Kono S, Kersting R, Zhang X C 2001 J. Appl. Phys. 89 2357
[5] Ralph S E, Perkowitz S, Katzenellenbogen N, Grischkowsky D 1994 J. Opt. Soc. Am. B 11 2528
[6] Wang C, Gong J, Xing Q, Li Y, Liu F, Zhao X, Chai L, Wang C, Zheltikov A M 2010 J. Biophot. 3 641
[7] Chen H, Wang L 2009 Chin. Phys. B 18 2785
[8] Yang Y P, Feng S, Feng H, Pan X C, Wang Y Q, Wang W Z 2011 Acta Phys. Sin. 60 027802 (in Chinese) [杨玉平, 冯帅, 冯辉, 潘学聪, 王义全, 王文忠 2011 物理学报 60 027802]
[9] He Y T, Jiang W S, Zhang Y D, Fan G L 2010 Chin. Opt. Lett. 8 162
[10] Blanchard F, Razzari L, Bandulet H C, Sharma G, Morandotti R, Kieffer J C, Ozaki T, Reid M, Tiedje H F, Haugen H K, Hegmann F A 2007 Opt. Express 15 13212
[11] Liu F, Song Y J, Xing Q R, Hu M L, Li Y F, Wang C L, Chai L, Zhang W L, Zheltikov A M, Wang C Y 2010 IEEE Photon. Technol. Lett. 22 814
[12] Walsh D A, Browne P G, Dunn M H, Rae C F 2010 Opt. Express 18 13951
[13] Vodopyanov K L 2008 Laser & Photon. Rev. 2 11
[14] Naftaly M, Dudley R 2009 Opt. Lett. 34 674
[15] Fülöp J A, Pálfalvi L, Almási G, Hebling J 2010 Opt. Express 18 12311
[16] Gatesman A J, Waldman J, Ji M, Musante C, Yngvesson S 2000 IEEE Microw. Guided W. 10 264
[17] Chen YW, Han P Y, Zhang X C 2009 Appl. Phys. Lett. 94 041106
[18] Kuroo S, Oyama S, Shiraishi K, Sasho H, Fukushima K 2010 Appl. Opt. 49 2806
[19] Zhou C L, Li X D, Wang W J, Zhao L, Li H L, Diao H W, Cao X N 2011 Acta Phys. Sin. 60 038201 (in Chinese) [周春兰, 励旭东, 王文静, 赵 雷, 李海玲, 刁宏伟, 曹晓宁 2011 物理学报 60 038201]
[20] Brückner C, Pradarutti B, Stenzel O, Steinkopf R, Riehemann S, Notni G, Tünnermann A 2007 Opt. Express 15 779
[21] Fang F Z, Xiong Z, Hu X T 2006 J. Micromech. Microeng. 16 214
[22] Wang Y B, Wang C L, Xing Q R, Liu F, Li Y F, Chai L, Wang Q Y, Fang F Z, Zhang X D 2009 Appl. Opt. 48 1998
[23] Zhang X , Hu M L , Song Y J , Chai L , Wang C Y 2010 Acta Phys. Sin. 59 1863 (in Chinese) [张鑫, 胡明列, 宋有建, 柴路, 王清月 2010 物理学报 59 1863]
[24] Zhang Y Y , Zhang C , Hu M L , Wang S J , Song Y J , Chai L , Wang C Y 2010 Chin. Phys. B 19 014212
[25] Hoffmann M C, Turchinovich 2010 Appl. Phys. Lett. 96 151110
[26] Liu F, Li Y F, Xing Q R, Wang C L, Hu M L, Chai L, Wang C Y 2011 Chin. Opt. Lett. 9 S10201
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