Results 31 to 40 of about 5,339 (220)

Field Trial of Cluster Target Detection by Broadband Microwave Photonic MIMO Radar

IEEE Journal of Microwaves
Cluster target detection is challenging for traditional narrow-band radars. Microwave photonic multiple-input-multiple-output (MIMO) radar is an emerging technique for accurate cluster target detection, which enhances range and angular resolution via its
Yuewen Zhou, Fangzheng Zhang, Jiayuan Kong, Yihan Wang, Jinhu Li, Kunyang Chen, Guanqun Sun, Yuhui He, Shilong Pan   +8 more
doaj   +1 more source

Silicon Photonics for Microwave Photonics Applications

Journal of Lightwave Technology, 2016
We describe the use of silicon photonics to develop integrated microwave photonics components and subsystems for generating chirped microwave and millimeter wave pulses as well as for providing optical delays and phase shifting for photonic beamforming.
openaire   +3 more sources

Magnesium‐Based Transient Bioelectronics, Bio‐Optics and Bio‐Scaffolds

Advanced Functional Materials, EarlyView.
This paper reviews the state of the art and recent advances in magnesium‐based thin‐film, foils, and scaffolds for applications in transient bio‐optics, bioelectronics and tissue engineering. The design principles, fabrication methods, material properties, and integration strategies are discussed in detail.
Massimo Mariello, Yves Leterrier
wiley   +1 more source

5.2-THz-bandwidth miniaturized spectrometer using a GHz-tunable laser

PhotoniX
The increasing demand for dispersion engineering in various photonic applications necessitates spectrometry with both kilohertz resolution and several terahertz bandwidth.
Huashan Yang, Xiaohu Tang, Hao Zhang, Lihan Wang, Zongxin Ju, Zhe Kang, Jijun He, Shilong Pan   +7 more
doaj   +1 more source

Mechanistic Control of C─H Bond Activation and C─C Coupling in Light‐Driven Methane Conversion to C2+ Products over Multifunctional Photocatalysts

Advanced Functional Materials, EarlyView.
Methane photocatalytic activation under mild conditions remains a formidable challenge in the synthesis of solar fuels. In this review, we emphasize the growing importance of multifunctional materials and hybrid systems within a unified mechanistic framework that integrates selective C─H bond activation, formation and control of intermediates, C─C ...
Di Hu, Yuheng Jiang, Vitaly V. Ordomsky, Bastian Mei, Zhiyong Tang, Andrei Y. Khodakov   +5 more
wiley   +1 more source

Si‐Doped Nanocrystalline Diamond as Highly Sensitive Luminescence Thermometer for the Physiological Temperature Range

Advanced Functional Materials, EarlyView.
In this work, diamonds with negative charged silicon‐vacancy (SiV−) centers have been designed for use as thermometers in biomedical applications. Multiparametric analysis of the emission characteristics of the SiV− centers provides extraordinary sensitivity for temperature detection in the physiological temperature range.
María Gragera, Iván Carrillo‐Berdugo, Josue Millán, Paulius Pobedinskas, Antonio Freire, Ken Haenen, Javier Navas   +6 more
wiley   +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

Architecture for sub-100 ms liquid crystal reconfigurable intelligent surface based on defected delay lines

Communications Engineering
Reconfigurable intelligent surfaces, comprised of passive tunable elements, are emerging as an essential device for upcoming millimeter wave and terahertz wireless systems. A fundamental aspect of the device involves the tuning technology used to achieve
Robin Neuder, Marc Späth, Martin Schüßler, Alejandro Jiménez-Sáez   +3 more
doaj   +1 more source

Broadband Image-Reject Mixing Based on a Polarization-Modulated Dual-Channel Photonic Microwave Phase Shifter

IEEE Photonics Journal, 2020
Broadband image-reject mixing using a dual-channel polarization-modulated photonic microwave phase shifter is proposed and experimentally demonstrated.
Yamei Zhang, Zhaoyu Li, Wenjuan Chen, Ce Liu, Kunlin Shao, Dan Zhu, Shilong Pan   +6 more
doaj   +1 more source

Microwave Photonic Links and Transversal Microwave Photonic Applications

Electromagnetic Science
With the help of photonic techniques, microwave photonic links (MPLs) have remarkable advantages in terms of generating, transmitting, and processing analog or microwave signals with high frequency or wide bandwidth relative to traditional electrical systems, which have been widely and deeply researched over the past few decades.
Yunping Bai, Zhihui Liu, Mengmeng Duan, Jiaxue Feng, Xixi Xiong, Kelei Wei, Kainan Wu, Xiyao Jia, Ruilin Liao, Yuhang Song, Edwin Yue Bun Pun, Sha Zhu, Xingyuan Xu, Ning Hua Zhu, Kun Xu   +14 more
openaire   +2 more sources