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Among many terahertz wave generation methods, nonlinear optical collinear difference frequency generation (CDFG) is always regarded as a promising way to achieve the high power, broadband, continual tunable terahertz wave emission. Theoretical analysis shows that a big coherent length (on millimeter scale) in isotropic GaP crystal could be realized by the laser wavelength near 1064 nm in the CDFG process, which meets the condition of high power and broadband terahertz generation. In the experiment, a high power and broadband terahertz wave is achieved from GaP crystal, with its tunable terahertz range 95.9-773.4 μm (0.39-3.13 THz) and the highest terahertz peak power 7 W at 2 THz. The experimental result is generally consistent well with its theoretical calculation.
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Keywords:
- terahertz source /
- GaP /
- collinear difference frequency generation
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[20] Ding Y J, Jiang Y, Zotova I B 2010 Appl. Phys. Lett. 96 031101
[21] Ragam S, Tanabe T, Saito K, Oyama Y, Nishizawa J 2009 J. Lightwave Technol. 27 3057
[22] Ding Y J, Shi W 2006 Solid State Electron. 50 1128
[23] Tomita I, Suzuki H, Rungsawang R, Ueno Y, Ajito K 2007 Phys. Status Solidi A 204 1221
[24] Sun B, Yao J Q, Wang Z, Wang P 2007 Acta Phys. Sin. 56 1390 (in Chinese) [孙 博, 姚建铨, 王 卓, 王 鹏 2007 56 1390]
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[27] Madarasz F L, Dimmock J O, Dietz N, Bachmann K J 2000 J. Appl. Phys. 87 1564
[28] Palik E D 1998 Handbook of Optical Constants of Solids (Vol. III) (San Dicgo: Academic Press) pp32-40
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[1] Zhang C L 2008 Terahertz Sensing and Imaging (1st Ed.) (Beijing: National Defence Industry Press) p1 (in Chinese) [张存林 2008 太赫兹感测与成像 (第一版) (北京: 国防工业出版社) 第1页]
[2] Sun B, Yao J Q 2006 Chin. J. Lasers 33 1349 (in Chinese) [孙博, 姚建铨 2006 中国激光 33 1349]
[3] Grischkowsky D, Keiding S, Vanexter M, Fattinger C 1990 J. Opt. Soc. Am. B 7 2006
[4] Kawase K, Shikata J, Ito H 2002 J. Phys. D: Appl. Phys. 35 R1
[5] Sato A, Kawase K, Minamide H, Wada S, Ito H 2001 Rev. Sci. Instrum. 72 3501
[6] Imai K, Kawase K, Shikata J, Minamide H, Ito H 2001 Appl. Phys. Lett. 78 1026
[7] Kawase K, Shikata J, Imai K, Ito H 2001 Appl. Phys. Lett. 78 2819
[8] Lu J X, Huang Z M, Huang J G, Wang B B, Shen X M 2011 Acta Phys. Sin. 60 024209 (in Chinese) [陆金星, 黄志明, 黄敬国, 王兵兵, 沈学民 2011 60 024209]
[9] Shi W, Ding Y J, Fernelius N, Vodopyanov K 2002 Opt. Lett. 27 1454
[10] Shi W, Leigh M, Zong J, Jiang S B 2007 Opt. Lett. 32 949
[11] Ding Y J 2007 IEEE J. Sel. Top. Quant. 13 705
[12] Shakir Y A, Sorochenko V R, Gribenyukov A I 2010 Phys. Wave. Phenom. 18 240
[13] Taniuchi T, Okada S, Nakanishi H 2004 J. Appl. Phys. 95 5984
[14] Suizu K, Miyamoto K, Yamashita T, Ito H 2007 Opt. Lett. 32 3
[15] Vodopyanov K L, Avetisyan Y H 2008 Opt. Lett. 33 2314
[16] Taniuchi T, Nakanishi H 2004 J. Appl. Phys. 95 7588
[17] Saito K, Tanabe T, Oyama Y, Suto K, Kimura T, Nishizawa J 2008 J. Phys. Chem. Solids 69 597
[18] Nishizawa J, Suto K, Sasaki T, Tanabe T, Tanno T, Oyama Y, Sato F 2006 P. Jpn. Acad. B Phys. 82 353
[19] Aleshkin V Y, Antonov A A, Gaponov S V, Dubinov A A, Krasil'nik Z F, Kudryavtsev K E, Spivakov A G, Yablonskii A N 2008 JETP Lett. 88 787
[20] Ding Y J, Jiang Y, Zotova I B 2010 Appl. Phys. Lett. 96 031101
[21] Ragam S, Tanabe T, Saito K, Oyama Y, Nishizawa J 2009 J. Lightwave Technol. 27 3057
[22] Ding Y J, Shi W 2006 Solid State Electron. 50 1128
[23] Tomita I, Suzuki H, Rungsawang R, Ueno Y, Ajito K 2007 Phys. Status Solidi A 204 1221
[24] Sun B, Yao J Q, Wang Z, Wang P 2007 Acta Phys. Sin. 56 1390 (in Chinese) [孙 博, 姚建铨, 王 卓, 王 鹏 2007 56 1390]
[25] Li Z Y, Yao J Q, Li J, Bing P B, Xu D G, Wang P 2010 Acta Phys. Sin. 59 6237 (in Chinese) [李忠洋, 姚建铨, 李 俊, 邴丕彬, 徐德刚, 王 鹏 2010 59 6237]
[26] Pradarutti B, Matthaus G, Riehemann S, Notni G, Nolte S, Tunnermann A 2008 Opt. Commun. 281 5031
[27] Madarasz F L, Dimmock J O, Dietz N, Bachmann K J 2000 J. Appl. Phys. 87 1564
[28] Palik E D 1998 Handbook of Optical Constants of Solids (Vol. III) (San Dicgo: Academic Press) pp32-40
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