Nanophotonics-inspired all-silicon waveguide platforms for terahertz integrated systems

RASD Koala, M Fujita, T Nagatsuma - Nanophotonics, 2022 - degruyter.com
Recent advances in silicon (Si) microphotonics have enabled novel devices for the terahertz
(THz) range based on dielectric waveguides. In the past couple of years, dielectric …

A review on the evolvement of optical-frequency filtering in photonic devices in 2016–2021

HY Pan, X Chen, XL Xia - Renewable and Sustainable Energy Reviews, 2022 - Elsevier
In photonic devices, the optical filter plays an essential role by steering the electromagnetic
wave in optical frequency to reshape the spectrum. However, suffering from the imperfect …

Terahertz integration platforms using substrateless all-silicon microstructures

D Headland, M Fujita, G Carpintero, T Nagatsuma… - APL Photonics, 2023 - pubs.aip.org
The absence of a suitable standard device platform for terahertz waves is currently a major
roadblock that is inhibiting the widespread adoption and exploitation of terahertz technology …

Plug‐and‐Play Single‐Photon Devices with Efficient Fiber‐Quantum Dot Interface

WB Jeon, JS Moon, KY Kim, YH Ko… - Advanced Quantum …, 2022 - Wiley Online Library
Incorporating solid‐state quantum emitters into optical fiber networks enables the long‐
distance transmission of quantum information and the remote connection of distributed …

Tutorial on broadband transmissive metasurfaces for wavefront and polarization control of terahertz waves

X You, C Fumeaux… - Journal of Applied Physics, 2022 - pubs.aip.org
In order to harness the capabilities of terahertz waves, various metasurface-based functional
devices have been developed recently. However, due to the limited usage of systematic …

Ultra‐Wideband Terahertz Integrated Polarization Multiplexer

W Gao, M Fujita, S Murakami… - Laser & Photonics …, 2025 - Wiley Online Library
Polarization‐division multiplexing is crucial for increasing channel capacity and spectral
efficiency in communications. A key component is the polarization multiplexer, which …

1-to-N terahertz integrated switches enabling multi-beam antennas

P Dechwechprasit, H Lees, D Headland, C Fumeaux… - Optica, 2023 - opg.optica.org
Implementing terahertz circuits and system designs relies on integrating reconfigurable
devices such as switches, to fulfill a critical role in controlling and manipulating the flow of …

Ultra-low-loss and broadband all-silicon dielectric waveguides for WR-1 band (0.75–1.1 THz) modules

R Koala, R Maru, K Iyoda, L Yi, M Fujita, T Nagatsuma - Photonics, 2022 - mdpi.com
This study presents ultra-low-loss and broadband all-silicon dielectric waveguides for the
WR-1 band (0.75–1.1 THz). The waveguides are built in high-resistivity silicon (10 kΩ-cm) …

Terahertz oscillator chips backside-coupled to unclad microphotonics

DJ Headland, Y Nishida, X Yu, M Fujita… - IEEE Journal of …, 2022 - ieeexplore.ieee.org
Terahertz technology is largely dependent upon planar on-chip antennas that radiate
downwards through the substrate, and so an effective means to interface these antennas …

Demonstration of an Integrated terahertz band-stop filter using an apodized Bragg grating

A Dehghanian, W Gomaa, M Haghighat, T Darcie… - Optics …, 2023 - opg.optica.org
This paper presents the demonstration of an on-chip integrated terahertz (THz) apodized
Bragg grating (TABG) which functions as band-stop filter with a center frequency of 0.8 THz …