反铁磁体氧化镍在窄带太赫兹脉冲作用下产生二次光学谐波

IF 1 4区物理与天体物理 Q4 PHYSICS, APPLIED

High Temperature Pub Date : 2024-03-22 DOI:10.1134/s0018151x23060147

O. V. Chefonov, A. V. Ovchinnikov, M. B. Agranat

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引用次数: 0

摘要

摘要该研究探讨了中心对称反铁磁体 NiO 在电场强度为 1 MV/cm 的窄带太赫兹脉冲下产生二次光学谐波的各方面问题。研究发现，当暴露于频率为 1 太赫兹（相当于 NiO 的反铁磁共振频率）的太赫兹脉冲时，与暴露于频率为 1.5 太赫兹的脉冲相比，观察到二次谐波的强度显著下降。研究表明，观察到的二次谐波产生强度的下降可以用窄带太赫兹脉冲在薄样品中传播过程中的多径干扰来解释。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Generation of the Second Optical Harmonic under the Action of Narrowband Terahertz Pulses in the Antiferromagnet NiO

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Generation of the Second Optical Harmonic under the Action of Narrowband Terahertz Pulses in the Antiferromagnet NiO

Abstract

The study examines aspects of the generation of the second optical harmonic in the centrosymmetric antiferromagnet NiO when exposed to narrowband terahertz pulses with an electric field strength on the order of 1 MV/cm. It was found that when exposed to terahertz pulses with a frequency of 1 THz, which corresponds to the antiferromagnetic resonance frequency of NiO, a significant decrease in the intensity of the second harmonic is observed versus exposure to pulses with a frequency of 1.5 THz. It is shown that the observed decrease in the intensity of second harmonic generation can be explained by multipath interference during the propagation of a narrowband terahertz pulse in a thin sample.

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来源期刊

High Temperature 物理-物理：应用

CiteScore

1.50

自引率

40.00%

发文量

审稿时长

4-8 weeks

期刊介绍： High Temperature is an international peer reviewed journal that publishes original papers and reviews written by theoretical and experimental researchers. The journal deals with properties and processes in low-temperature plasma; thermophysical properties of substances including pure materials, mixtures and alloys; the properties in the vicinity of the critical point, equations of state; phase equilibrium; heat and mass transfer phenomena, in particular, by forced and free convections; processes of boiling and condensation, radiation, and complex heat transfer; experimental methods and apparatuses; high-temperature facilities for power engineering applications, etc. The journal reflects the current trends in thermophysical research. It presents the results of present-day experimental and theoretical studies in the processes of complex heat transfer, thermal, gas dynamic processes, and processes of heat and mass transfer, as well as the latest advances in the theoretical description of the properties of high-temperature media.