Terahertz quantum cascade lasers as enabling quantum technology

MS Vitiello, P De Natale - Advanced Quantum Technologies, 2022 - Wiley Online Library
Quantum cascade lasers (QCLs) represent the most fascinating achievement of quantum
engineering, showing how artificial materials can be generated through quantum design …

Laser frequency combs with fast gain recovery: physics and applications

M Piccardo, F Capasso - Laser & Photonics Reviews, 2022 - Wiley Online Library
The dynamics of semiconductor lasers with fast gain is generally considered to suppress
amplitude modulation, resulting in a frequency‐modulated output. Since their first …

Source-configured symmetry-broken hyperbolic polaritons

C Hu, T Sun, Y Zeng, W Ma, Z Dai, X Yang, X Zhang… - Elight, 2023 - Springer
Polaritons are quasi-particles that combine light with matter, enabling precise control of light
at deep subwavelength scales. The excitation and propagation of polaritons are closely …

Self‐induced phase locking of terahertz frequency combs in a phase‐sensitive hyperspectral near‐field nanoscope

V Pistore, EAA Pogna, L Viti, L Li, AG Davies… - Advanced …, 2022 - Wiley Online Library
Chip‐scale, electrically‐pumped terahertz (THz) frequency‐combs (FCs) rely on nonlinear
four‐wave‐mixing processes, and have a nontrivial phase relationship between the evenly …

Recent developments in terahertz quantum cascade lasers for practical applications

L Gao, C Feng, X Zhao - Nanotechnology Reviews, 2023 - degruyter.com
Terahertz (THz) quantum cascade laser (QCL) is an electrically pumped unipolar photonic
device in which light emission takes place due to electronic transitions between subbands …

[HTML][HTML] Tailored nano-electronics and photonics with two-dimensional materials at terahertz frequencies

L Viti, MS Vitiello - Journal of Applied Physics, 2021 - pubs.aip.org
The discovery of graphene and its fascinating capabilities has triggered an unprecedented
interest in inorganic two-dimensional (2D) materials. van der Waals layered materials such …

Thermally induced metastability of InGaAs single-layer for highly strained superlattices by metal-organic chemical vapor deposition

S Kang, J Kim, CW Jang, H Jang, ST Lee, B Lee… - Journal of Alloys and …, 2022 - Elsevier
In this study, the metastability of In 0.68 Ga 0.32 As layers on InP substrates was
investigated at various growth temperatures. The thickness of each metastable In 0.68 Ga …

Indium Antimonide Plasmonic Nanostructures for Tunable Terahertz Sources

T Blaikie - 2022 - uwspace.uwaterloo.ca
In this work, procedures were successfully created and deployed for the development,
characterization, and study of indium antimonide nanostructures as well as their terahertz …

Intersubband engineered nonlinear activation function for photonic neural networks

Z Xu, S Addamane, D Burghoff - Photonic Computing: From …, 2024 - spiedigitallibrary.org
Fast, sensitive, and compact photonic nonlinear activation devices are crucial for forming
photonic neural networks with high computational efficiency. However, conventional …