Frequency-domain electron spin resonance spectroscopy using continuously frequency-tunable terahertz photomixers

被引：7

作者：

Ohmichi, Eiji ^{[1
]}

Shoji, Yuto ^{[1
]}

Takahashi, Hideyuki ^{[1
,2
,3
]}

Ohta, Hitoshi ^{[1
,2
]}

机构：

[1] Kobe Univ, Grad Sch Sci, Nada Ku, 1-1 Rokkodai, Kobe, Hyogo 6578501, Japan

[2] Kobe Univ, Mol Photosci Res Ctr, Nada Ku, 1-1 Rokkodai, Kobe, Hyogo 6578501, Japan

[3] JST PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 3320012, Japan

来源：

APPLIED PHYSICS LETTERS | 2021年 / 119卷 / 16期

基金：

日本科学技术振兴机构;

关键词：

ANTIFERROMAGNETIC-RESONANCE; SPECTROMETER; STANDARD; BEHAVIOR; RANGE; MODE; DPPH; EPR; ESR;

D O I：

10.1063/5.0065649

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Frequency-domain electron spin resonance (FDESR) spectroscopy in the terahertz (THz) region using continuously tunable photomixers was demonstrated. Spectral resolution was greatly improved with the use of a pair of fiber stretchers. In this setup, the amplitude of the THz electric field was determined at each frequency by externally sweeping the optical path difference, resulting in a spectral resolution of about 1 MHz. With this technique, we observed narrow ESR spectra with a 20-MHz linewidth, enabling high-resolution FDESR spectroscopy in a broad frequency range. Published under an exclusive license by AIP Publishing.

引用

页数：5

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