| 基于DAST晶体的高能量超宽带可调谐小型化差频THz辐射源研究 |
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| 引用本文： | 贺奕焮,庞子博,朱先立,徐德刚,王与烨,孟大磊,武聪,程虹娟,徐永宽,姚建铨.基于DAST晶体的高能量超宽带可调谐小型化差频THz辐射源研究[J].红外与毫米波学报,2019,38(4):485-492. |
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| 作者姓名： | 贺奕焮 庞子博 朱先立 徐德刚 王与烨 孟大磊 武聪 程虹娟 徐永宽 姚建铨 |
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| 作者单位： | 天津大学精密仪器与光电子工程学院激光与光电子研究所,天津300072;天津大学光电信息技术教育部重点实验室,天津300072;中国电子科技集团公司第四十六研究所,天津300220;天津大学精密仪器与光电子工程学院激光与光电子研究所,天津300072;天津大学光电信息技术教育部重点实验室,天津300072;第三军医大学西南医院神经外科,重庆400038 |
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| 基金项目： | 国家973计划 2015CB755403;国家重点研发专项 2016YFC0101001;国家自然科学基金 61775160 61771332 61471257;中国博士后科学基金 2016M602954;重庆市博士后科研项目 Xm2016021国家973计划（2015CB755403），国家重点研发专项（2016YFC0101001），国家自然科学基金（61775160, 61771332， 61471257），中国博士后科学基金（2016M602954），重庆市博士后科研项目（Xm2016021） |
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| 摘 要： | 基于双温区法生长的高质量DAST(4-(4-二甲基氨基苯乙烯基)甲基吡啶对甲苯酸盐)晶体,成功搭建了高能量、超宽带可调谐差频THz辐射源,系统尺寸40 cm×25 cm,调谐范围达到0. 3～19. 6 THz,最大输出能量达到4. 02μJ/pulse@18. 6 THz,信噪比最高达到32. 24 dB,结合振镜扫描技术,以0. 1 THz为步长,超宽带光谱扫描时间小于1min.实验中观测到差频产生THz波的输出饱和现象并研究了基于DAST晶体差频产生THz波的偏振特性与传输特性,证明基于DAST晶体差频产生的THz波消光比达到0. 05,且差频过程满足0类相位匹配条件.基于该太赫兹辐射源,对多种固体样品在2～14 THz范围内的超宽带THz光谱信息进行了有效获取.
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| 关 键 词： | DAST 晶体 太赫兹 超宽带可调谐 |
| 收稿时间： | 2018/10/30 0:00:00 |
| 修稿时间： | 2019/2/25 0:00:00 |
High-energy, ultra-wideband tunable and compact terahertz source based on DAST crystal via difference frequency generation |
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| HE Yi-Xin,PANG Zi-Bo,ZHU Xian-Li,XU De-Gang,Wang Yu-Ye,MENG Da-Lei,WU Cong,CHENG Hong-Juan,XU Yong-Kuan and YAO Jian-Quan.High-energy, ultra-wideband tunable and compact terahertz source based on DAST crystal via difference frequency generation[J].Journal of Infrared and Millimeter Waves,2019,38(4):485-492. |
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| Authors: | HE Yi-Xin PANG Zi-Bo ZHU Xian-Li XU De-Gang Wang Yu-Ye MENG Da-Lei WU Cong CHENG Hong-Juan XU Yong-Kuan and YAO Jian-Quan |
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| Affiliation: | Institute of Laser and Optoelectronics, School of Precision Instrument and Opto-electronics Engineering, Tianjin University,The 46th research institute of China Electronics Technology Group Corporation, Tianjin 300220, China,Institute of Laser and Optoelectronics, School of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China;Key Laboratory of Opto-electronics Information Technology (Ministry of Education), Tianjin University, Tianjin 300072, China,Institute of Laser and Optoelectronics, School of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China;Key Laboratory of Opto-electronics Information Technology (Ministry of Education), Tianjin University, Tianjin 300072, China,Institute of Laser and Optoelectronics, School of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China;Key Laboratory of Opto-electronics Information Technology (Ministry of Education), Tianjin University, Tianjin 300072, China;Institute of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, China,The 46th research institute of China Electronics Technology Group Corporation, Tianjin 300220, China,The 46th research institute of China Electronics Technology Group Corporation, Tianjin 300220, China,The 46th research institute of China Electronics Technology Group Corporation, Tianjin 300220, China,The 46th research institute of China Electronics Technology Group Corporation, Tianjin 300220, China and Institute of Laser and Optoelectronics, School of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China;Key Laboratory of Opto-electronics Information Technology (Ministry of Education), Tianjin University, Tianjin 300072, China |
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| Abstract: | |
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| Keywords: | DAST crystal terahertz ultra-wideband tunable |
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