75 citations · 228 across the 10 of their papers we have counts for
10 papers
Terahertz frequency combs exploiting an on-chip solution processed graphene-quantum cascade laser coupled-cavity architecture
F. P. Mezzapesa, K. Garrasi, J. Schmidt +11
The ability to engineer quantum-cascade-lasers (QCLs) with ultrabroad gain spectra and with a full compensation of the group velocity dispersion, at Terahertz (THz) frequencies, is…
Long-wavelength infrared photovoltaic heterodyne receivers using patch-antenna quantum cascade detectors
Azzurra Bigioli, Giovanni Armaroli, Angela Vasanelli +7
Quantum cascade detectors (QCD) are unipolar infrared devices where the transport of the photo excited carriers takes place through confined electronic states, without an applied b…
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…
Ultrafast two-dimensional field spectroscopy of terahertz intersubband saturable absorbers
Jürgen Raab, Christoph Lange, Jessica L. Boland +9
Intersubband (ISB) transitions in semiconductor multi-quantum well (MQW) structures are promising candidates for the development of saturable absorbers at terahertz (THz) frequenci…
High dynamic range, heterogeneous, terahertz quantum cascade lasers featuring thermally-tunable frequency comb operation over a broad current range
Katia Garrasi, Francesco P. Mezzapesa, Luca Salemi +7
We report on the engineering of broadband quantum cascade lasers (QCLs) emitting at Terahertz (THz) frequencies, which exploit a heterogeneous active region scheme and have a curre…
Giant optical nonlinearity cancellation in quantum wells
S. Houver, A. Lebreton, T. A. S. Pereira +10
Second-order optical nonlinearities can be greatly enhanced by orders of magnitude in resonantly excited nanostructures, theoretically predicted and experimentally investigated in…