At the dawn of a new era in terahertz technology
At the dawn of a new era in terahertz technology
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DOI：
10.1109/jproc.2007.898844
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发表时间：
2007-08-01
影响因子：
20.6
通讯作者：
Yasuda, Hiroaki
中科院分区：
文献类型：
--
作者：
Hosako, Iwao;Sekine, Norihiko;Yasuda, Hiroaki
国家信息和通信技术研究所(NICT，日本)于2006年4月启动了太赫兹项目。它在未来五年的基本目标是使全国范围内的技术基础设施能够为太赫兹技术的各种应用而创建。技术基础设施包括开发远程赫兹量子级联激光器、太赫兹范围量子井光探测器和高精度可调连续波源等半导体器件。它还包括脉冲太赫兹测量系统，大气传播的建模和测量，以及建立一个框架来构建太赫兹范围内的材料数据库，包括测量协议的标准化。即使在任何太赫兹系统中，这些都是常见的技术基础设施。本文介绍了太赫兹量子级联激光器(THz-QCL)(峰值功率为30 mW，3.1 THz)、太赫兹范围量子井光探测器(THz-QWPs)(调谐频率为3 THz)、超宽带太赫兹时间域光谱(THz-TDS)系统(测量范围为0.1~15 THz)、艺术材料数据库的实例以及大气传播测量结果等领域的发展现状。
The National institute of Information and Communications Technology (NICT, Japan) started the Terahertz Project in April 2006. its fundamental purpose in the next five years is to enable a nationwide technical infrastructure to be created for diverse applications of terahertz technology. The technical infrastructure includes the development of semiconductor devices such as telrahertz quantum cascade lasers, terahertz-range quantum well photodetectors, and high-precision tunable continuous wave sources. it also includes pulsed terahertz measurement systems, modeling and measurement of atmospheric propagation, and the establishment of a framework to construct a materials database in the terahertz range including standardization of the measurement protocol. These are common technical infrastructure even in any terahertz systems. In this article, we report the current status of developments in these fields such as terahertz quantum cascade lasers (THz-QCLs) (with peak power of 30 mW, 3.1 THz), terahertz-range quantum well photocletectors (THz-QWPs) (tuned at 3 THz) an ultrawideband terahertz time domain spectroscopy (THz-TDS) system (with measurement range of from 0.1 to 15 THz), an example of a database for materials of fine art, and results obtained from measuring atmospheric propagation.