光动力诱导等离子体元表面太赫兹响应的时间分辨探测

IF 1.4 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

JETP Letters Pub Date : 2024-06-24 DOI:10.1134/s0021364024601052

I. A. Novikov, M. A. Kiryanov, V. I. Stadnichuk, T. V. Dolgova, A. A. Fedyanin

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引用次数: 0

摘要

提出了一种太赫兹时域光谱学的改进方法。它包括直接测量透射太赫兹脉冲的时间轮廓，提取与物体表面多次反射相对应的脉冲，以及无需傅里叶变换算法对其进行分析。该方法在砷化镓表面光动力诱导的一维光栅上进行了测试，该光栅支持太赫兹范围内集体等离子模式的激发。所建议的方法使我们能够克服传统太赫兹时域光谱学的典型局限性，并扩展了现有太赫兹光子仪器的功能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Time-Resolved Detection of Terahertz Response in Photodynamically Induced Plasmonic Metasurfaces

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Time-Resolved Detection of Terahertz Response in Photodynamically Induced Plasmonic Metasurfaces

A modification of terahertz time-domain spectroscopy is proposed. It includes the direct measurement of the temporal profile of the transmitted terahertz pulse, the extraction of the pulse corresponding to multiple reflections from the object surfaces, and its analysis without the Fourier transform algorithm. The method is tested on one-dimensional gratings that are photodynamically induced on the gallium arsenide surface and support the excitation of collective plasmonic modes in the terahertz range. The suggested approach allows us to overcome the limitations typical of the conventional terahertz time-domain spectroscopy and expands the capabilities of the existing terahertz photonic instrumentation.

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来源期刊

JETP Letters 物理-物理：综合

CiteScore

2.40

自引率

30.80%

发文量

164

审稿时长

3-6 weeks

期刊介绍： All topics of experimental and theoretical physics including gravitation, field theory, elementary particles and nuclei, plasma, nonlinear phenomena, condensed matter, superconductivity, superfluidity, lasers, and surfaces.