Publications related to Waveguide (radio frequency)

Enabling Wide Bandwidth in Substrate-Integrated Waveguide Slot Antennas by Using Low-Index Metamaterials

Romain Christophe Rémy Fleury, Amir Jafargholi, Jalaledin Tayebpour

This paper presents a solution to overcome the inherently limited bandwidth of substrate-integrated waveguide (SIW) slot antennas. It is analytically shown that by decreasing the permittivity of a dielectric loaded slot antenna, the resulting bandwidth inc ...

2024

Resonators with tailored optical path by cascaded-mode conversions

Ileana-Cristina Benea-Chelmus, Marco Piccardo

Optical resonators enable the generation, manipulation, and storage of electromagnetic waves. The physics underlying their operation is determined by the interference of electromagnetic waves, giving rise to the resonance spectrum. This mechanism causes th ...

NATURE PORTFOLIO2023

High density lithium niobate photonic integrated circuits

Tobias Kippenberg, Rui Ning Wang, Anat Siddharth, Mikhail Churaev, Nikolai Kuznetsov, Zihan Li, Junyin Zhang, Zelin Tan

Photonic integrated circuits have the potential to pervade into multiple applications traditionally limited to bulk optics. Of particular interest for new applications are ferroelectrics such as Lithium Niobate, which exhibit a large Pockels effect, but ar ...

NATURE PORTFOLIO2023

Ultra-Small Bent Meta-Waveguide Filters

Romain Christophe Rémy Fleury, Maliheh Khatibi Moghaddam

This paper demonstrates the capability of locally resonant metamaterials (LRMs) for creating compact metallic waveguide E- and H-bends, which are simultaneously working as bandpass filters. For creating these bent meta-filters, we use composite pin-pipe wa ...

IEEE2022

Subthreshold VO2 vertical switches for large-bandwidth millimeter-wave and sub-terahertz detection

Mihai Adrian Ionescu, Ali Gilani, Daesung Park, Fatemeh Qaderi Rahaqi

n-linear impedance characteristics of VO2 offer solutions to highly sensitive radio-frequency (RF), millimeterwave (mm-wave), and terahertz (THz) detectors. We demonstrate high-speed broadband sensibility of miniaturized VO2 switches by utilizing the nonli ...

IEEE2022

Optical computing and reconfiguring with spatiotemporal nonlinearities in waveguides

Demetri Psaltis, Christophe Moser, Ugur Tegin

A device for optical computing comprises at least one modulator (210, 710, 810, 910, 1010, 1110, 1210, 1310, 1410, 1520, 1610, 1710, 1810, 1910, 2010, 2110, 2210) and at least one waveguide (220, 720, 820, 920, 1020, 1120, 1220, 1320, 1420, 1530, 1620, 172 ...

2022

Smooth GaN membranes by polarization-assisted electrochemical etching

Nicolas Grandjean, Jean-François Carlin, Joachim Armand Simonne Ciers

III-nitride membranes offer promising perspectives and improved device designs in photonics, electronics, and optomechanics. However, the removal of the growth substrate often leads to a rough membrane surface, which increases scattering losses in optical ...

AMER INST PHYSICS2021

Microwave or millimeter wave passive components or devices

Romain Christophe Rémy Fleury, Maliheh Khatibi Moghaddam

A passive device comprising a hollow waveguide including first and second wall structures extending in a guiding direction, an interconnecting base extending between the wall structures and an enclosure extending between the wall structures, the enclosure ...

2021

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Waveguide (radio frequency)

Enabling Wide Bandwidth in Substrate-Integrated Waveguide Slot Antennas by Using Low-Index Metamaterials

Resonators with tailored optical path by cascaded-mode conversions

Time-Domain Integration of Broadband Terahertz Pulses via Tapered Two-Wire Waveguide

High density lithium niobate photonic integrated circuits

Ultra-Small Bent Meta-Waveguide Filters

Subthreshold VO2 vertical switches for large-bandwidth millimeter-wave and sub-terahertz detection

Optical computing and reconfiguring with spatiotemporal nonlinearities in waveguides

Smooth GaN membranes by polarization-assisted electrochemical etching

Microwave or millimeter wave passive components or devices

Three-dimensional fabrication of sub-micron optical waveguides in PDMS and other polymer materials

Graph Chatbot

Chat with Graph Search

Enabling Wide Bandwidth in Substrate-Integrated Waveguide Slot Antennas by Using Low-Index Metamaterials

Smooth GaN membranes by polarization-assisted electrochemical etching

Time-Domain Integration of Broadband Terahertz Pulses via Tapered Two-Wire Waveguide

High density lithium niobate photonic integrated circuits

Resonators with tailored optical path by cascaded-mode conversions

Three-dimensional fabrication of sub-micron optical waveguides in PDMS and other polymer materials

Microwave or millimeter wave passive components or devices

Ultra-Small Bent Meta-Waveguide Filters

Optical computing and reconfiguring with spatiotemporal nonlinearities in waveguides

Subthreshold VO2 vertical switches for large-bandwidth millimeter-wave and sub-terahertz detection