Broadband terahertz time-domain spectroscopy of quantum materials in a dilution refrigerator

Review of Scientific Instruments 2026 Open access

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Authors: Robert Vukelich, Tenzin Norden, Tracy Hastings, Mohan Giri, Michelle Caldwell, Shabnam Forutan, John L. Reno, David Hilton
DOI: 10.1063/5.0323635
Cited by: 0

Abstract

We have constructed a terahertz time domain spectroscopy system using a Bluefors dilution refrigerator with a 7 T split-coil magnet. Using a gallium arsenide single quantum well sample, terahertz waveforms were measured at 145 mK in a magnetic field range from 0 to 6 T to measure cyclotron resonance. The effective mass was found to be 0.073me, which is larger than the commonly accepted bulk value of 0.068me.

Fields of Study & Subjects

Terahertz technology and applications Quantum and electron transport phenomena Semiconductor Quantum Structures and Devices

Publication details

Journal / source
Review of Scientific Instruments
Volume
97
Issue
10
Publication date
1 October 2026
Language
EN