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Updated: Jun 3, 2026

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
Published on: December 18, 2015
Compact magnetospectrometer for pulsed magnets based on infrared quantum cascade lasers
O Drachenko1, S Winnerl, H Schneider
1Institute of Ion-Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, 01314 Dresden, Germany. o.drachenko@fzd.de
We developed a portable infrared magnetospectrometer using quantum cascade lasers (QCLs) for versatile wavelength selection. The instrument demonstrates high performance in cyclotron resonance studies under strong magnetic fields.
Area of Science:
- Condensed Matter Physics
- Spectroscopy
- Quantum Optics
Background:
- Infrared spectroscopy is crucial for material characterization.
- Existing magnetospectroscopy setups can be bulky and lack wavelength flexibility.
Purpose of the Study:
- To present a portable, versatile infrared magnetospectrometer.
- To showcase its application in cyclotron resonance studies.
Main Methods:
- Utilized a portable quantum cascade laser (QCL) based infrared source.
- Covered a broad spectral range (5–120 μm) with interchangeable QCL modules.
- Performed measurements under pulsed magnetic fields up to 60 T.
Main Results:
- Demonstrated a portable QCL-based infrared magnetospectrometer.
- Successfully conducted cyclotron resonance studies.
- Highlighted the system's flexibility with various excitation sources.
Conclusions:
- The developed portable QCL magnetospectrometer offers a flexible and high-performance solution for condensed matter research.
- Its design facilitates diverse spectroscopic investigations in strong magnetic fields.
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