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Symmetry Control in Coupled Quantum Cascade Ring Lasers
DOMINIK SCHOCK, ANNA INVERNICI, MICHAEL JAIDL +5
Optical frequency combs with fast tunability are essential for integrated spectroscopy and sensing. However, achieving such functionality in the terahertz regime presents a signifi…
All-Optical Adaptive Control of Quantum Cascade Random Lasers
Sebastian Schönhuber, Nicolas Bachelard, Benedikt Limbacher +7
Spectral fingerprints of molecules are mostly accessible in the terahertz and mid-infrared ranges, such that efficient molecular-detection technologies rely on broadband coherent l…
A monolithic frequency comb platform based on interband cascade lasers and detectors
Benedikt Schwarz, Johannes Hillbrand, Maximilian Beiser +6
Optical frequency combs enable all-solid-state spectrometers that will trigger a breakthrough in miniaturization and on-chip integration of mid-infrared sensing technology. Interba…
Coherent injection locking of quantum cascade laser frequency combs
Johannes Hillbrand, Aaron Maxwell Andrews, Hermann Detz +2
Quantum cascade laser (QCL) frequency combs are a promising candidate for chemical sensing and biomedical diagnostics, requiring only milliseconds of acquisition time to record abs…
Far-infrared quantum cascade lasers operating in AlAs phonon Reststrahlen band
K. Ohtani, M. Beck, M. J. Süess +6
We report on the operation of a double metal waveguide far-infrared quantum cascade laser emitting at 28 m, corresponding to the AlAs-like phonon Reststrahlen band. To avoid abs…
Spectrally resolved far-fields of terahertz quantum cascade lasers
Martin Brandstetter, Sebastian Schönhuber, Michael Krall +6
We demonstrate a convenient and fast method to measure the spectrally resolved far-fields of multimode terahertz quantum cascade lasers by combining a microbolometer focal plane ar…