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Above 20-Ghz modulation of room-temperature mid-infrared quantum cascade lasers
(2014)Conference Poster -
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 -
Novel injector schemes for Mid-infrared quantum cascade lasers, toward the genetic optimization of the laser design
(2012)2012 Conference on Lasers and Electro-Optics (CLEO), 6-11 May 2012, San Jose, CA, USAConference Paper -
Terascope: Portable real-time terahertz imaging using quantum cascade lasers
(2012)Other Conference Item -
Chemical sensing with a pulsed 16 microns QC-DFB laser
(2002)Trends in Optics and Photonics Series ~ Technical digest: Summaries of papers presented at the Conference on Lasers and Electro-Optics, Long Beach Convention Center, Long Beach, California, May 19-24, 2002Conference Paper -
Microwave-Induced Resistance Oscillations in Split-Ring-Resonators-covered Hall-bars
(2015)Conference Poster -
RF injection of THz QCL combs at 80 K emitting over 700 GHz spectral bandwidth
(2020)PhotonicsWe report about RF injection locking of an homogeneous THz quantum cascade laser operating at 3 THz central frequency. The extremely diagonal nature of the optical transition, combined with low-loss copper-based double-metal waveguides, allow CW operation up to 105 K and CW power in excess of 5.6 mW measured at 80 K. Terahertz emission spanning up to 600 GHz, together with a narrow beatnote, indicate comb operation at 80 K, and strong RF ...Journal Article -
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 -
RF-Injection for stabilized, low-noise mid-infrared Quantum Cascade Laser Optical Frequency Combs
(2020)Conference Poster -
Ultra-low Threshold Quantum Cascade Laser
(2021)2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)Semiconductor lasers with ultra-low thresholds and minimal footprints are a topic of active research. Such devices require a combination of high quality factor laser cavities with small active region volumes. For high-reflectivity coated ridge lasers, a low threshold can only be achieved by strongly reducing the diffraction losses arising at the laser facet. We show here that, somewhat counter-intuitively, opening a carefully designed ...Conference Paper