摘要
噪声源是一种产生可控(频率及功率可控)噪声的装置,是器件研发环节中的重要工具。太赫兹噪声源在太赫兹器件噪声系数测试、星载微波辐射计标定、成像和波谱分析等方面具有重要的应用。本文系统地梳理了国内外太赫兹噪声源的发展及研究近况,分析了基于热力学、电子学和光子学太赫兹噪声源的技术特点,并对其未来发展方向进行了展望。
A Noise Source(NS)is a device that generates controllable noise(with controllable frequency and power),and it is an important tool in the development process of devices.Terahertz noise sources have important applications in terahertz device noise figure testing,calibration of space-borne microwave radiometers,imaging,and spectral analysis.This article systematically reviews the development and research status of Terahertz(THz)noise sources at home and abroad,analyzes the technical characteristics of terahertz noise sources based on thermodynamics,electronics,and photonics,and looks forward to their future development directions.
作者
刘丽娟
秦菲菲
孙粤辉
刘文杰
王云才
LIU Lijuan;QIN Feifei;SUN Yuehui;LIU Wenjie;WANG Yuncai(Institute of Advanced Photonics Technology,School of Information Engineering,Guangdong University of Technology,Guangzhou Guangdong 510006,China;Key Laboratory of Photonic Technology for Integrated Sensing and Communication,Ministry of Education of China,Guangdong University of Technology,Guangzhou Guangdong 510006,China;Guangdong Provincial Key Laboratory of Information Photonics Technology,Guangdong University of Technology,Guangzhou Guangdong 510006,China)
出处
《太赫兹科学与电子信息学报》
2024年第11期1228-1237,共10页
Journal of Terahertz Science and Electronic Information Technology
基金
国家自然科学基金重大仪器专项基金资助项目(61927811)。
关键词
太赫兹
噪声源
超噪比
平坦度
Terahertz
Noise Source
Excess Noise Ratio(ENR)
flatness
