Results 131 to 140 of about 18,522 (248)

Optical control of an 8-element Ka-band phased array using a high-speed optoelectronic interconnect [PDF]

Optical distribution of control signals in electronically steered phased array antennas is being considered. A demonstration experiment is described in which a high speed hybrid GaAs optoelectronic integrated circuit (OEIC) was used to control an eight ...
Bendett, M., Bhasin, K. B., Claspy, P. C., Richard, M. A.   +3 more
core   +1 more source

Electrical Control of Linear Dichroism in Black Phosphorus from the Visible to Mid-Infrared [PDF]

, 2017
The incorporation of electrically tunable materials into photonic structures such as waveguides and metasurfaces enables dynamic control of light propagation by an applied potential.
Atwater, Harry A., Jariwala, Deep, Rossman, George R., Sherrott, Michelle C., Went, Cora M., Whitney, William S., Wong, Joeson   +6 more
core   +1 more source

Generation of Tunable Coherent Tri-Frequency Microwave Signals Based on Optoelectronic Oscillator

Photonics
We report a coherent tri-frequency microwave signal generation approach using an optoelectronic oscillator (OEO). In the previous literature, the OEO-based schemes can only generate coherent microwave signals with dual frequencies.
Nan Zhang, Zexuan Kong, Huiyun Tang, Chao Luo, Yumo Lei, Ming Li, Ninghua Zhu, Wei Li   +7 more
doaj   +1 more source

Recent Advances in Stimulated Brillouin Scattering in Integrated Photonics

Advanced Physics Research, EarlyView.
This review systematically surveys recent advances in stimulated Brillouin scattering (SBS) within integrated photonics. It begins by elucidating the fundamental mechanisms of stimulated coupling between photons and acoustic phonons in nanoscale waveguides, enhanced by the photoelastic and moving boundary effects.
Songyue Liu, Qi Lu, Pan Hu, Yuan Zhong, Yu He, Yaojing Zhang, Young‐Ik Sohn, Yikai Su, Lu Sun   +8 more
wiley   +1 more source

Three‐Step Synthesis Toward Fluorene‐Based Non‐Fused‐Ring Acceptors for Organic Solar Cells

Chemistry – A European Journal, EarlyView.
Applying a simple three step synthesis strategy leads to two fluorene‐based non‐fused‐ring electron acceptors, FHM‐Cl and FHM‐F for organic solar cells. The chlorinated variant delivers markedly higher efficiency due to broader light harvesting and favorable molecular packing, resulting in improved charge transport and reduced recombination losses ...
Virginia Lafranconi, Suman Mallick, Lisa Nauta, Lisa Inzko, Julia Hönigsberger, Danijel Babic, Bettina Schlemmer, Daniele Padula, Heinz Amenitsch, Thomas Rath, Gregor Trimmel   +10 more
wiley   +1 more source

S‐Doped Carbon Nitride Thin Films From a Triazole Precursor

Carbon Innovation, EarlyView.
Sulfur‐functionalized carbon nitride thin films are synthesized via low‐temperature chemical vapor deposition using a triazole‐derived precursor. Tunable sulfur incorporation modulates electronic and optical properties and enables efficient visible‐light photocatalysis with high conversion and selectivity.
Yen‐Han Wang, Enis Oğuzhan Eren, Baris Kumru, Paolo Giusto   +3 more
wiley   +1 more source

Monolithic optical integrated control circuitry for GaAs MMIC-based phased arrays [PDF]

Gallium arsenide (GaAs) monolithic microwave integrated circuits (MMIC's) show promise in phased-array antenna applications for future space communications systems.
Bhasin, K. B., Kascak, T. J., Ponchak, G. E.   +2 more
core   +1 more source

Computationally Driven Advances in Cu‐CNT On‐Chip Interconnect Materials: From First Principles to Machine Learning

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A multiscale framework integrating electronic, mechanical, and thermal analysis with machine learning to optimize carbon nanotube interconnects. As the component dimensions in integrated circuits shrink to extreme scales, the complexity of interconnect systems is increasing significantly, necessitating an urgent and comprehensive upgrade of ...
Changhong Zhang, Jie Liang, Yi Li, Zhenyu Wang, Haoyuan Li, Zhen Yuan, Jiuren Zhou, Rongmei Chen, Wensheng Zhao, Lei Zhang, Hanshen Xin, Jianhua Zhang   +11 more
wiley   +1 more source

Phosphorescent Platinum(II) Complexes With Diazinedipyrrolide Pincer Ligands: Structure and Photophysical Properties

European Journal of Inorganic Chemistry, EarlyView.
A new family of phosphorescent Pt(II) complexes with pyrimidinedipyrrolide ligands, including a pyrazine analog, was designed and synthesized. Their emission properties can be finely tuned via ligand modification, revealing strong phosphorescence originating from intraligand charge transfer transitions.
Marcela Horáková, Alexandre Rico, Filip Bureš, Pascal le Poul, Sébastien Gauthier, Jiří Váňa, Zdeňka Růžičková, Sylvain Achelle   +7 more
wiley   +1 more source

Modelling Tunable Integrated Optoelectronic Oscillators

2024 Italian Conference on Optics and Photonics (ICOP)
Optoelectronic oscillators (OEOs) are recognized for their ability to generate ultra-low phase noise and high-frequency microwave (MW) signals, surpassing traditional electronic oscillators. Recent research has focused on creating wideband tunable and compact integrated OEOs to minimize size and improve stability, which is essential for applications ...
Pandey G., Imran M., Porzi C., Malacarne A., Ghelfi P., Bogoni A.   +5 more
openaire   +1 more source