Open AccessMeasurement of electron paramagnetic resonance using terahertz time-domain spectroscopy
Author(s) -
Kohei Kozuki,
Takeshi Nagashima,
Masanori Hangyo
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.024950
Subject(s) - electron paramagnetic resonance , paramagnetism , materials science , spectroscopy , polarizer , anisotropy , nuclear magnetic resonance , terahertz radiation , terahertz time domain spectroscopy , optics , condensed matter physics , terahertz spectroscopy and technology , dipole , physics , birefringence , optoelectronics , quantum mechanics
We present a frequency-domain electron spin resonance (ESR) measurement system using terahertz time-domain spectroscopy. A crossed polarizer technique is utilized to increase the sensitivity in detecting weak ESR signals of paramagnets caused by magnetic dipole transitions between magnetic sublevels. We demonstrate the measurements of ESR signal of paramagnetic copper(II) sulfate pentahydrate with uniaxial anisotropy of the g-factor under magnetic fields up to 10 T. The lineshape of the obtained ESR signals agrees well with the theoretical predictions for a powder sample with the uniaxial anisotropy.