Results 181 to 190 of about 54,131 (291)

Detection and imaging of chemicals and hidden explosives using terahertz time-domain spectroscopy and deep learning. [PDF]

Light Sci Appl
Jiang X, Li Y, Li Y, Shen CY, Ozcan A, Jarrahi M.   +5 more
europepmc   +1 more source

Scale‐Invariant Waveguiding in Flatland

Exploration, EarlyView.
The study introduces scale‐invariant metasurface waveguides with uniform modal field distribution and an effective index independent of the core width. By leveraging spatial symmetry and fine‐tuning mode profiles, the design is validated through near‐field measurements in the C band, offering potential applications in flat optics, sensing, and ...
Zhixia Xu, Shuo Bao, Massimo Moccia, Giuseppe Castaldi, Tie Jun Cui, Vincenzo Galdi   +5 more
wiley   +1 more source

Subsurface Fracture Mapping in Adhesive Interfaces Using Terahertz Spectroscopy. [PDF]

Materials (Basel)
Singh M, Karmarkar S, Herbsommer M, Yoon S, Tomar V.   +4 more
europepmc   +1 more source

Perovskite‐based time‐domain signal‐balancing LiDAR sensor with centimeter depth resolution

InfoMat, EarlyView.
In this study, we present a monolithic high‐speed perovskite‐based photodetector capable of directly sensing the time delay between two light pulses with a temporal resolution of at least 170 ps. This outstanding time resolution is achieved through a signal‐balancing detection scheme that effectively overcomes the limitations of conventional ...
Gebhard J. Matt, Vitalii Bartosh, Joshua R. S. Lilly, Vincent J.‐Y. Lim, Lorenzo J. A. Ferraresi, Daria Proniakova, Yuliia Kominko, Gytis Juška, Laura M. Herz, Sergii Yakunin, Maksym V. Kovalenko   +10 more
wiley   +1 more source

A simulation-based plasmonic terahertz nanosensor with graphene-enhanced sensitivity for diabetes monitoring. [PDF]

Sci Rep
Rafighirani Y, Javidan J.
europepmc   +1 more source

The contribution of vibrational spectroscopy and data analytics towards the achievement of the global sustainability goals

Journal of the Science of Food and Agriculture, EarlyView.
Abstract The United Nations Sustainable Development Goals (UN SDGs) were defined to improve the quality of life of the global population particularly regarding social and economic aspects, with a major focus on environmental sustainability. The incorporation of digital technologies into the agri‐food sector has become a key enabler in increasing the ...
Daniel Cozzolino, Louwrens C Hoffman
wiley   +1 more source

Plasmonic Arrays Resonating at D-Band Communication Frequencies. [PDF]

Materials (Basel)
Wei R, Liu M, Petersen S, Zhang W.
europepmc   +1 more source

Mid‐Infrared Integrated Photonics: Material Platforms and Emerging Applications

Laser &Photonics Reviews, EarlyView.
Mid‐infrared (MIR) integrated photonics enables advanced chemical and biological sensing through the unique absorption features of molecules in the 2–20 µm range. This review highlights recent material advances such as chalcogenide glasses, silicon, and graphene and explores MIR applications in environmental monitoring, medical diagnostics ...
Muhammad Ali Butt, Daniel Pastor Abellán, Ryszard Piramidowicz   +2 more
wiley   +1 more source

Experimental observation of topological Dirac vortex mode in terahertz photonic crystal fibers. [PDF]

Light Sci Appl
Xing H, Xue Z, Shum PP, Cong L.
europepmc   +1 more source

Micro‐Transfer Printed Continuous‐Wave and Mode‐Locked Laser Integration at 800 nm on a Silicon Nitride Platform

Laser &Photonics Reviews, EarlyView.
A heterogeneous III‐V/SiN platform for lasers at 800 nm is realized using the micro‐transfer printing method. Efficient GaAs gain sections are directly butt‐coupled to SiN waveguides, enabling continuous‐wave and mode‐locked extended‐cavity lasers. The mode‐locked lasers generate highly stable pulse trains with repetition rates up to 9.2 GHz and a ...
Max Kiewiet, Stijn Cuyvers, Maximilien Billet, Konstantinos Akritidis, Valeria Bonito Oliva, Gaudhaman Jeevanandam, Sandeep Saseendran, Manuel Reza, Pol Van Dorpe, Roelof Jansen, Joost Brouckaert, Günther Roelkens, Kasper Van Gasse, Bart Kuyken   +13 more
wiley   +1 more source