Planarized THz quantum cascade lasers for broadband coherent photonics

U Senica, A Forrer, T Olariu, P Micheletti… - Light: Science & …, 2022 - nature.com
Recently, there has been a growing interest in integrated THz photonics for various
applications in communications, spectroscopy and sensing. We present a new integrated …

Optimized 3D printing of THz waveguides with cyclic olefin copolymer

E Mavrona, J Graf, E Hack, P Zolliker - Optical Materials Express, 2021 - opg.optica.org
There is a need for low-cost and easily accessible optical devices for THz applications. THz
devices can be manufactured rapidly with 3D printing while using THz transparent materials …

[HTML][HTML] Broadband surface-emitting THz laser frequency combs with inverse-designed integrated reflectors

U Senica, S Gloor, P Micheletti, D Stark, M Beck… - APL Photonics, 2023 - pubs.aip.org
THz quantum cascade lasers (QCLs) based on double metal waveguides feature
broadband and high-temperature devices for their use in spectroscopy and sensing …

Electro-optic sampling of a free-running terahertz quantum-cascade-laser frequency comb

S Markmann, D Stark, M Singleton, M Beck, J Faist… - Physical Review …, 2023 - APS
Quantum-cascade-laser (QCL) frequency combs are compact semiconductor light sources
operating in the mid-IR and terahertz frequencies. Achieving subpicosecond laser pulses …

Two-Conductor Ports Enabling Broadband Operation of Substrateless Micro-Scale Silicon Waveguides

D Headland, DC Gallego… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
We extend the operation bandwidth of substrateless all-silicon waveguides beyond the
single-mode region. This requires a suitably broadband port-access scheme, as well as …

On-Chip Frequency Control in THz Quantum Cascade Lasers

MR Mertens - 2023 - kups.ub.uni-koeln.de
Several attempts have been made to build terahertz Quantum Cascade Lasers with the
capability for frequency tuning exceeding the range accessible by variation of temperature …

Broadband THz quantum cascade laser frequency combs with surface emission and inverse-designed facet reflectors

U Senica, S Gloor, P Micheletti, M Beck… - EPJ Web of …, 2023 - epj-conferences.org
We present a planarized waveguide cavity with an integrated broadband output coupler that
improves both the output power and far-field properties of THz quantum cascade laser …

Broadband Antenna-coupled THz Quantum Cascade Laser Frequency Combs With Inverse-designed Waveguide Facets

U Senica, S Gloor, P Micheletti, M Beck… - … Waves (IRMMW-THz …, 2023 - ieeexplore.ieee.org
We present a broadband, monolithic outcoupler based on planarized double metal
waveguides that addresses both the reflectivity design and broadband narrow beam …

A Broadband Suspended Hollow Vivaldi Antenna for THz Quantum Cascade Lasers

U Senica, M Beck, J Faist… - 2021 Conference on …, 2021 - ieeexplore.ieee.org
Terahertz (THz) Quantum Cascade Lasers (QCLs) based on double metal waveguides have
been of large interest as compact sources of broadband THz radiation, including frequency …

[PDF][PDF] High-quality 3D printed THz waveguides with optimized processing parameters for COC filaments

E Mavrona, J Graf, E Hack, P Zolliker - researchgate.net
We present the optimization of the processing parameters for high-quality 3D printing using
cyclic olefin copolymer (Topas). Topas is transparent between UV and 10 THz [1], with …