Results 61 to 70 of about 14,535 (306)

Compact and Energy-Efficient Forward-Biased PN Silicon Mach-Zehnder Modulator

IEEE Photonics Journal, 2022
A compact device model along with simulations and an experimental analysis of a forward-biased PN junction-based silicon Mach-Zehnder modulator (MZM) with a phase-shifter length of 0.5 mm is presented.
Sourav Dev, Karanveer Singh, Reza Hosseini, Arijit Misra, Mircea Catuneanu, Stefan Preusler, Thomas Schneider, Kambiz Jamshidi   +7 more
doaj   +1 more source

Twin Crystal Moiré Metasurfaces for Crossing Flat‐Band Transport

Advanced Functional Materials, EarlyView.
This study introduces twin crystal moiré metasurfaces, breaking in‐plane symmetry to enable reconfigurable acoustic wave manipulation. By adjusting the twin angle and interlayer twist angle, various combinations of hyperbolic, flat bands, and elliptic states can be synthesized in the system.
Shida Fan, Chenglin Han, Kuan He, Chadi Ellouzi, Yunlong Wang, Li‐Qun Chen, Jie Sun, Zhaodong Xu, Chen Shen, Tianzhi Yang   +9 more
wiley   +1 more source

A Review of Optical Neural Networks

IEEE Access, 2020
Optical neural network can process information in parallel by using the technology based on free-space and integrated platform. Over the last half century, the development of integrated circuits has been limited by Moore's law.
Xiubao Sui, Qiuhao Wu, Jia Liu, Qian Chen, Guohua Gu   +4 more
doaj   +1 more source

A tuning method for photonic integrated circuits in presence of thermal, cross talk [PDF]

, 2018
We present a novel method to perform tuning and locking of photonic integrated circuits (PICs) in presence of thermal cross-talk. The unwanted phase coupling among different elements of the circuit is canceled via exploiting the eigen-vectors of the ...
D. Aguiar, A. Melloni, M. Milanizadeh, AHMADI, SARA, F. Morichetti   +4 more
core  

Introduction to JSTQE special issue on foundry enabled photonic integrated circuits

, 2019
The papers in this special section focus on foundry enabled photonic integrated circuits. This research highlights the recent progress and trends in foundries and associated technologies to develop volume manufacturing of photonic integrated circuits ...
Glick, Madeleine, Williams, KA Kevin, Williams, Kevin A., Glick, M, Romagnoli, Marco, Zhou, Zhiping James, Juodawlkis, Paul   +6 more
core   +1 more source

Spiro‐Phenothiazine Hole‐Transporting Materials: Unlocking Stability and Scalability in Perovskite Solar Cells

Advanced Materials, EarlyView.
Fluorene‐functionalized spiro‐phenothiazine (PTZ‐Fl) exhibits strong Li+ affinity and thermal stability, enabling a PCE of 25.75% in small‐area cells and 22.07% in 25 cm2 modules. Under ISOS‐L3 conditions, PTZ‐Flbased devices retain over 80% efficiency after 1000 hours, demonstrating superior stability and scalability compared to spiro‐OMeTAD for next ...
Javier Urieta‐Mora, Seung Ju Choi, Jaeki Jeong, Silvia Orecchio, Inés García‐Benito, Manuel Pérez‐Escribano, Joaquín Calbo, Likai Zheng, Minseop Byun, Seyeong Song, Gi‐Hwan Kim, Shaik M. Zakeeruddin, Seog‐Young Yoon, Yimhyun Jo, Agustín Molina‐Ontoria, Enrique Ortí, Nazario Martín, Michael Grätzel   +17 more
wiley   +1 more source

A Current-Mode Analog Front-End for Capacitive Length Transducers in Pneumatic Muscle Actuators

Micromachines
This paper reports on the design, implementation, and characterization of a current-mode analog-front-end circuit for capacitance-to-voltage conversion that can be used in connection with a large variety of sensors and actuators in industrial and ...
Guido Di Patrizio Stanchieri, Andrea De Marcellis, Marco Faccio, Elia Palange, Michele Gabrio Antonelli, Pierluigi Beomonte Zobel   +5 more
doaj   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

RF interconnects for high-speed and dense photonic integrated circuits

, 2019
We present the development of low loss radio-frequency interconnects for a generic InP photonic integrated platform. The proposed interconnects add a degree of freedom for the routing of RF signals, thereby enabling both high speed and denser photonic ...
de Vries, Tjibbe, Yao, W Weiming, Dolores-Calzadilla, Victor; id_orcid, Tjibbe de Vries, Weiming Yao, Kevin Williams, Williams, KA Kevin, Williams, Kevin, Yao, Weiming, Dolores Calzadilla, VM Victor, Dolores-Calzadilla, Victor, Victor Dolores-Calzadilla   +11 more
core   +1 more source

Directional Flow of Confined Polaritons in CrSBr

Advanced Materials, EarlyView.
CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak, Sichao Yu, Jaime Abad‐Arredondo, Biswajit Datta, Andy Cruz, Sorah Fischer, Kseniia Mosina, Zdeněk Sofer, Antonio I. Fernández‐Domínguez, Francisco J. Garcia‐Vidal, Vinod M. Menon   +10 more
wiley   +1 more source