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Interaction between meta-materials and bound excitons in bulk GaN at THz frequency
(2012)Other Conference Item -
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Hybrid THz Graphene-Metamaterial Devices
(2015)Abstract Book: Hybrid Photonics and Materials Conference 2015Other Conference Item -
Optically driven electron turnstile based on self-assembled semiconductor quantum dots
(2014)8th International Conference on Quantum Dots : May 11-16, 2014. Palazzo dei Congressi, Pisa, ItalyOther Conference Item -
Terascope: Portable real-time terahertz imaging using quantum cascade lasers
(2012)Other Conference Item -
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Terahertz quantum Hall effect in spin-split 2D heavy-hole gases
(2016)2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)Other Conference Item -
High-performance THz QCL frequency combs
(2020)Proceedings of SPIE ~ Quantum Sensing and Nano Electronics and Photonics XVIIA broadband, Cu-Cu THz quantum cascade laser is presented. The device shows an 50% improved dynamical range and doubled peak power in pulsed compared to Au-Au devices. The pulsed maximum lasing temperature was increased from 105 K to 133 K. In CW similar bandwidths for Cu-Cu and Au-Au devices are observed with an increased temperature performance. At 77 K the emitted power of the device is reduced by 57% compared to 30 K. At this temperature ...Other Conference Item -
An Ultra-Compact CO2 Isotope Analyzer Exclusively Based on Quantum Cascade Technology
(2013)2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQECSummary form only given. The CO 2 isotopes are of great interest for various applications ranging from medical diagnostics to climate research. Quantum cascade laser absorption spectroscopy has shown its potential to measure isotope ratios with very high precision and its capability for long-term remote measurements [1, 2].Here, we report for the first time on an ultra-compact spectrometer design exclusively employing III-V semiconductor ...Other Conference Item -
THz Intersubband Emitter based on Silicon
(2021)2021 27th International Semiconductor Laser Conference (ISLC)We present THz quantum cascade emitters realized on a Si substrate. The emission centered at 3.4 and 4.9 THz originates from L-valley transitions in strain-compensated n-type Ge/SiGe heterostructures. This is an important step towards the realization of Si-based THz quantum cascade lasers.Other Conference Item