Results 111 to 120 of about 549,867 (352)

Substrate-integrated photonic doping for near-zero-index devices

Nature Communications, 2019
Here, the authors demonstrate substrate-integrated photonic doping, enabling the implementation of near-zero-index media within a printed circuit board integrated design.
Ziheng Zhou, Yue Li, Hao Li, Wangyu Sun, Iñigo Liberal, Nader Engheta   +5 more
doaj   +1 more source

Optoelectronic Devices for In‐Sensor Computing

Advanced Materials, EarlyView.
The raw data obtained directly from sensors in the noisy analogue domain is often unstructured, which lacks a predefined format or organization and does not conform to a specific data model. Optoelectronic devices for in‐sensor visual processing can integrate perception, memory, and processing functions in the same physical units, which can compress ...
Qinqi Ren, Chaoyi Zhu, Sijie Ma, Zhaoqing Wang, Jianmin Yan, Tianqing Wan, Weicheng Yan, Yang Chai   +7 more
wiley   +1 more source

Silicon photonic integrated circuit swept-source optical coherence tomography receiver with dual polarization, dual balanced, in-phase and quadrature detection.

Biomedical Optics Express, 2015
Optical coherence tomography (OCT) is a widely used three-dimensional (3D) optical imaging method with many biomedical and non-medical applications. Miniaturization, cost reduction, and increased functionality of OCT systems will be critical for future ...
Zhao Wang, Hsiang-Chieh Lee, D. Vermeulen, Long Chen, T. Nielsen, S. Park, Allan Ghaemi, E. Swanson, C. Doerr, J. Fujimoto   +9 more
semanticscholar   +1 more source

Molecular Control of the Donor/Acceptor Interface Suppresses Charge Recombination Enabling High‐Efficiency Single‐Component Organic Solar Cells

Advanced Materials, EarlyView.
The outstanding double‐cable‐based single‐component material, DCPY2, exhibits a suppressed charge recombination process alongside efficient charge generation. This results in a high fill factor and short‐circuit current, yielding an efficiency to 13.85%.
Yao Li, Richard A. Pacalaj, Yongmin Luo, Keren Ai, Yulong Hai, Shijie Liang, Kezhou Fan, Aleksandr A. Sergeev, Ruijie Ma, Top Archie Dela Peña, Jolanda S. Müller, Zijing Jin, P Shakya Tuladhar, Tao Jia, Jiannong Wang, Gang Li, Kam Sing Wong, Weiwei Li, James R. Durrant, Jiaying Wu   +19 more
wiley   +1 more source

SciAgents: Automating Scientific Discovery Through Bioinspired Multi‐Agent Intelligent Graph Reasoning

Advanced Materials, EarlyView.
The SciAgents AI model drives hypothesis generation by harnessing multi‐agent graph reasoning, extracting insights from knowledge graphs constructed from scientific papers. Each agent plays a specific role: the Ontologist defines concepts, the Scientists draft and refine proposals, and the Critic reviews.
Alireza Ghafarollahi, Markus J. Buehler
wiley   +1 more source

Ultrafast Terahertz Superconductor Van der Waals Metamaterial Photonic Switch

Advanced Photonics Research
The high‐temperature layered superconductor (HTS) BSCCO is one of the key quantum material platforms in THz science and technology. Compact, stable, and reliable BSCCO THz photonic integrated circuit components can be developed to effectively and ...
Kaveh Delfanazari
doaj   +1 more source

Programmable optical processor chips: toward photonic RF filters with DSP-level flexibility and MHz-band selectivity

Nanophotonics, 2017
Integrated optical signal processors have been identified as a powerful engine for optical processing of microwave signals. They enable wideband and stable signal processing operations on miniaturized chips with ultimate control precision. As a promising
Xie Yiwei, Geng Zihan, Zhuang Leimeng, Burla Maurizio, Taddei Caterina, Hoekman Marcel, Leinse Arne, Roeloffzen Chris G.H., Boller Klaus-J., Lowery Arthur J.   +9 more
doaj   +1 more source

Calibration of an InP-Based Monolithically Integrated Optical Pulse Shaper

IEEE Photonics Journal, 2013
We present the calibration method and characterization of a monolithically integrated semiconductor optical pulse shaper. The photonic integrated circuit has been realized in an InP-based generic photonic foundry process.
M. S. Tahvili, E. Smalbrugge, X. J. M. Leijtens, M. J. Wale, M. K. Smit, E. A. J. M. Bente   +5 more
doaj   +1 more source

Advancements in Understanding the Physicochemical Properties of Reticular Materials: An In Situ and Operando Spectroscopic Perspective

Advanced Materials, EarlyView.
This review explores how in situ and operando spectroscopic techniques reveal the real‐time behavior of reticular materials, including MOFs and COFs. These methods track material formation and functionalization, structural changes, defect formation, dynamic responses to external triggers, and catalytic processes.
Bettina Baumgartner, Anna Wach, Xinwei Ye, Evelyn Ploetz, Bert M. Weckhuysen   +4 more
wiley   +1 more source

III–V/Silicon Hybrid Non-linear Nanophotonics in the Context of On-Chip Optical Signal Processing and Analog Computing

Frontiers in Physics, 2019
We discuss the application of silicon hybrid photonic integration technology for all-optical signal processing. The core is a photonic crystal nanocavity made of a III–V semiconductor alloy.
Léa Constans, Léa Constans, Sylvain Combrié, Xavier Checoury, Grégoire Beaudoin, Isabelle Sagnes, Fabrice Raineri, Fabrice Raineri, Alfredo de Rossi   +8 more
doaj   +1 more source