Research Data Leeds Repository
Dataset associated with ‘Enhanced delivery of terahertz frequency radiation from a quantum cascade laser within a dry 3He dilution refrigerator'
Citation
Vaughan, Matthew (2023) Dataset associated with ‘Enhanced delivery of terahertz frequency radiation from a quantum cascade laser within a dry 3He dilution refrigerator'. University of Leeds. [Dataset] https://doi.org/10.5518/1381
Dataset description
We report on significant enhancements to the integration of terahertz (THz) quantum cascade lasers (QCL) and THz detection with a two-dimensional electron (2DEG) within a dilution refrigerator obtained by the inclusion of a multi-mesh 6THz low-pass filter to block IR radiation, a Winston cone to focus light output, and gating the 2DEG for optimised sensitivity. We show that these improvements allow us to obtain a >2.5 times reduced sample electron temperature (160mK compared with 430 mK previously), during cyclotron resonance (CR) measurements of a 2DEG under QCL illumination. This opens up a route to performing sub-100mK experiments using excitation by THz QCLs.
Keywords: | THz, QCL, cryogenic, millikelvin, Condensed Matter, 2DEG | ||||
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Subjects: | F000 - Physical sciences > F300 - Physics F000 - Physical sciences > F300 - Physics > F320 - Chemical physics > F321 - Solid-state physics F000 - Physical sciences > F300 - Physics > F340 - Mathematical & theoretical physics > F342 - Quantum mechanics |
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Divisions: | Faculty of Engineering and Physical Sciences > School of Electronic and Electrical Engineering | ||||
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License: | Creative Commons Attribution 4.0 International (CC BY 4.0) | ||||
Date deposited: | 11 Dec 2023 15:24 | ||||
URI: | https://archive.researchdata.leeds.ac.uk/id/eprint/1203 | ||||