太赫兹范围内快速、高灵敏度 LiTaO$_{3}$ 热释电探测器的线性度

IF 3.9 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Terahertz Science and Technology Pub Date : 2024-08-19 DOI:10.1109/TTHZ.2024.3445603

Ashutosh Sharma;Vineet Gupta;Joon-Gon Son;Abhishek Gupta;János Bohus;József A. Fülöp;Thomas Gebert

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引用次数: 0

摘要

为了响应单周期太赫兹脉冲，我们测量了钽酸锂热释电探测器的线性参数，其脉冲能量几乎超过三个数量级，最高可达 2 $/mu$J。在 1 $\mu$J 的脉冲能量和 25 $\mu$J/cm$^{2}$ 的能量通量下，响应是线性的，而在更高的辐照度下，响应是亚线性的。这一发现表明了探测器响应线性特性对于精确太赫兹计量的重要性。在重复频率高达 10 kHz 的单脉冲探测模式下，探测器具有很高的灵敏度。

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Linearity of Fast and Highly Sensitive LiTaO$_{3}$ Pyroelectric Detectors in the Terahertz Range

In response to single-cycle THz pulses, we measured the linearity parameter of lithium tantalate pyroelectric detectors, over nearly three orders of magnitude in pulse energy, up to 2

$\mu$

J. The response was linear up to 1

$\mu$

J pulse energy and 25

$\mu$

J/cm

$^{2}$

energy flux, and sublinear at higher irradiations. This finding shows the importance of characterizing the detector response linearity for accurate THz metrology. The detectors had high sensitivity in single-pulse detection mode up to 10 kHz repetition rate.

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来源期刊

IEEE Transactions on Terahertz Science and Technology ENGINEERING, ELECTRICAL & ELECTRONIC-OPTICS

CiteScore

7.10

自引率

9.40%

发文量

102

期刊介绍： IEEE Transactions on Terahertz Science and Technology focuses on original research on Terahertz theory, techniques, and applications as they relate to components, devices, circuits, and systems involving the generation, transmission, and detection of Terahertz waves.