234 citations · 639 across the 17 of their papers we have counts for
7 papers · 1 filter
Photon-driven broadband emission and RF injection locking of THz quantum cascade laser frequency combs
Andres Forrer, Martin Franckié, David Stark +4
We present homogeneous quantum cascade lasers (QCLs) emitting around 3 THz which display bandwidths up to 950 GHz with a single stable beatnote. Devices are spontaneously operating…
Gain dynamics in a heterogeneous terahertz quantum cascade laser
C. G. Derntl, G. Scalari, D. Bachmann +4
The gain recovery time of a heterogeneous active region terahertz quantum cascade laser is studied by terahertz-pump,i terahertz-probe spectroscopy. The investigated active region,…
Thermoelectrically cooled THz quantum cascade laser operating up to 210 K
Lorenzo Bosco, Martin Franckié, Giacomo Scalari +3
We present a \MF{terahertz} quantum cascade laser operating on a thermoelectric cooler up to a record-high temperature of 210.5 K. The active region design is based on only two qua…
High-resolution and gapless dual comb spectroscopy with current-tuned quantum cascade lasers
Michele Gianella, Akshay Nataraj, Béla Tuzson +7
We present gapless, high-resolution absorption and dispersion spectra obtained with quantum cascade laser frequency combs covering 55 cm. Using phase-sensitive dual comb des…
Mixing properties of room temperature patch-antenna receivers in a mid-infrared (9um) heterodyne system
A. Bigioli, D. Gacemi, D. Palaferri +10
A room-temperature mid-infrared (9 um) heterodyne system based on high-performance unipolar optoelectronic devices is presented. The local oscillator (LO) is a quantum cascade lase…
Pulses from a mid-infrared quantum cascade laser frequency comb using an external compressor
Matthew Singleton, Mattias Beck, Jerome Faist
A Martinez-type stretcher-compressor is used to modify the spectral phases of a high-power (~1 W) QCL comb emitted at 8.2 μm with more than 100 cm-1 spectral bandwidth. Using this…