146 citations · 146 across the 8 of their papers we have counts for
9 papers
Dynamically reconfigurable THz quantum walk comb laser through subharmonic excitation
Valerio Digiorgio, Robert Matthew Gray, Marco Raffa +5
On-chip frequency combs are increasingly relevant to both laser science and applications. Broad bandwidths and flat-top spectral envelopes are especially desirable for precision sp…
Amplitude- and frequency-modulated combs from an actively locked metasurface external-cavity laser
Marco Raffa, Jordane Bloomfield, Yu Wu +5
Optical frequency combs are key components of several photonics applications including spectroscopy, communications, and ultrafast photonics. A central challenge in frequency-comb…
Ultrabroadband Gain-Switched and Superluminescent Terahertz Semiconductor Lasers
Urban Senica, Michael A. Schreiber, Mattias Beck +3
Terahertz quantum cascade lasers (THz QCLs) are chip-scale semiconductor lasers operating in the frequency range between 1-6 THz, useful as compact sources for spectroscopy, commun…
Quantum cascade laser roadmap
Carlo Silvestri, Aleksandar D. Rakić, Dragan Indjin +46
Quantum cascade lasers (QCLs) are unipolar semiconductor lasers first demonstrated in 1994. Since then, they have played a central role in advancing mid-infrared and terahertz phot…
Short period InGaAs/AlInAs THz quantum cascade laser in thin double metal cavities operating up to 188K
Sebastian Gloor, David Stark, Martin Frankié +4
We present a two-well terahertz (THz) quantum cascade laser designed for high temperature operation based on the InGaAs/AlInAs material system. The lighter effective mass and highe…
Gate-tunable single terahertz meta-atom ultrastrong light-matter coupling
Elsa Jöchl, Anna-Lydia Vieli, Lucy Hale +6
We study the electrical tunability of ultrastrong light-matter interactions between a single terahertz circuit-based complementary split ring resonator (cSRR) and a two-dimensional…
Cavity modification of magnetoplasmon mode through coupling with intersubband polaritons
Lucy L. Hale, Daniele De Bernardis, Stephan Lempereur +12
We investigate the coupling of a multi-mode metal-insulator-metal cavity to a two-dimensional electron gas (2DEG) in a quantum well in the presence of a strong magnetic field. The…
On-chip, inverse-designed active wavelength division multiplexer at THz frequencies
Valerio Digiorgio, Urban Senica, Paolo Micheletti +3
The development of photonic integrated components for terahertz has become an active and growing research field. Despite its numerous applications, several challenges are still pre…
Coherent instabilities in a semiconductor laser with fast gain recovery
C. Y. Wang, L. Diehl, A. Gordon +9
We report the observation of a coherent multimode instability in quantum cascade lasers (QCLs), which is driven by the same fundamental mechanism of Rabi oscillations as the elusiv…