欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
随着短波近红外声光可调滤波器（NIR-AOTF）光谱成像分析仪在近红外光谱波段的广泛应用,对NIR-AOTF的光谱带宽及衍射效率提出了更高的要求。超声换能器作为NIR-AOTF的核心部件,其3dB工作带宽决定AOTF的光谱衍射范围,故改变铌酸锂各个镀膜厚度来提高换能器3dB损耗工作带宽。通过对换能器进行频率特性分析,得到换能器的损耗及阻抗频率特性,设计优化匹配网络,提高光谱衍射效率。
英文摘要：
With wide applications of the near infrared acousto-optic tunable Filter（NIR-AOTF）spectral imaging analyzer in the infrared spectrum of a plurality of spectral region, it has put forward higher request on the spectral bandwidth, diffraction efficiency and power efficiency of NIR-AOTF. As the core component of NIR-AOTF, the 3 dB bandwidth of the ultrasonic transducer determines the diffraction spectrum range of NIR-AOTF, so the operating bandwidth of 3 dB loss can be improved by changing the lithium niobate film thickness of each transducer. Through the ultrasound transducer frequency characteristic analysis, the transducer loss and impedance frequency characteristics have been obtained. The matching network was designed and optimized to improve the spectral diffraction efficiency.
同期刊论文项目
同项目期刊论文
Wide dynamic range experiments on a resonator fiber optic gyro based on closed-loop frequency lockin
Modified Fowler–Nordheim tunnelling for modeling charge injection intoSi3N4 in an Al/Si3N4/Si struct
Wide dynamic range experiments in a resonator fiber optic gyro based on closed-loop frequency lockin
Abnormal visible luminescence mechanism of Tb3+-Yb3+ codoped SiO2-Al2O3-CaF2 glass studied by time-r
Facile synthesis of core-shell structured PANI-Co3O4 nanocomposites with superior electrochemical pe
Plasma-Induced Wafer-Scale Self-Assembly of Silver Nanoparticles and Application to Biochemical Sens
Humidity and particulate testing of a high-Q microcavity packaging comprising a UV-curable polymer a
期刊信息
位置：