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20102026
most citedThermoelectrically cooled THz quantum cascade laser operating up to 210 K

234 citations · 469 across the 17 of their papers we have counts for

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physics.optics2026

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…

physics.optics2026

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…

physics.optics2026

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…

physics.optics2026

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…

physics.optics2026

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…

physics.optics2026

Short mode-locked pulses from planarized Y-coupled THz lasers

Urban Senica, Tabea Bühler, Sara Cibella +4

Short THz pulses are highly attractive both for fundamental research and practical applications in this underdeveloped region of the electromagnetic spectrum. Typically, THz pulses…