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Modified Martin-Puplett interferometer for magneto-optical Kerr effect measurements at sub-THz frequencies by Moshe, A. Glezer; Nagarajan, R.; Nagel, U.; Rõõm, T.; Blumberg, G. is a scholarly article available to read on EtoBox.

What is Modified Martin-Puplett interferometer for magneto-optical Kerr effect measurements at sub-THz frequencies about?

We present magneto-optical Kerr effect (MOKE) spectrometer based on a modified Martin-Puplett interferometer, utilizing continuous wave sub-THz low-power radiation in broad frequency range. This spectrometer is capable of measuring the frequency dependence of the MOKE response function, both the Kerr rotation and ellipticity, simultaneously with sub-milliradian accuracy without the need for reference measurement. The instrument's versatility allow it to be coupled to a cryostat with optical windows enabling studies of a variety of quantum materials such as unconventional superconductors, two-dimensional electron gas systems, quantum magnets, and other system showing optical Hall response, at sub-Kelvin temperatures and in high magnetic fields. We demonstrate the functionality of the MOKE spectrometer using an undoped InSb wafer as a test sample.

Author

Moshe, A. Glezer; Nagarajan, R.; Nagel, U.; Rõõm, T.; Blumberg, G.

Published

2024

Language

EN