Results 221 to 230 of about 3,456 (311)

Design and Implementation of Miniature Multi-Mode 4 × 4 MIMO Antenna for WiFi 7 Applications. [PDF]

Micromachines (Basel)
Lin W, Du K, Jiang X, Wang Y.
europepmc   +1 more source

Jewelled Byzantine and Medieval Reliquaries of the True Cross: Peridots and Other Gemstones in Material and Symbolic Perspective

Journal of Raman Spectroscopy, EarlyView.
An interdisciplinary in situ study of jewelled reliquaries of the True Cross integrates gemmology and portable analytical techniques, revealing new evidence on the identification and symbolic role of peridots and other gemstones. ABSTRACT Jewelled crosses containing relics of the True Cross occupy a central position in the devotional, artistic and ...
Stefania Martiniello, Stefano Legnaioli, Simona Raneri   +2 more
wiley   +1 more source

Four-port MIMO antenna loaded with FSS in FR2 band for wireless applications. [PDF]

Sci Rep
Naik S, Upmanyu A, Sharma M, Pandey A, Pandey A.   +4 more
europepmc   +1 more source

Toward Highest Frequency, Phase‐Sensitive Electric Field Sensing Enabled by Plasmonic Circuits

Laser &Photonics Reviews, EarlyView.
An electromagnetic field sensor using an optical sensor head for distortion‐free, high‐sensitivity measurements with potential for high‐frequency operation is presented. The frequency response is enabled by an antenna‐integrated plasmonic modulator. The sensitivity is calculated, and optimizations to obtain thermal‐background‐limited sensitivity are ...
Michael Baumann, Hande Ibili, Boris Vukovic, Tobias Blatter, Jasmin Smajic, Juerg Leuthold   +5 more
wiley   +1 more source

Germanium‐Based Mid‐Infrared Integrated Photonics

Laser &Photonics Reviews, EarlyView.
The mid‐infrared (mid‐IR) spectral range is a part of the electromagnetic spectrum in which most of the molecules have vibrational and rotational resonances. Photonics integration in this wavelength range have thus seen a burst of interest in the recent years, mainly driven by applications related with the detection of chemical and biological ...
Delphine Marris‐Morini, Goran Z. Mashanovich, Milos Nedeljkovic, Carlos Alonso‐Ramos, Laurent Vivien, Jacopo Frigerio, Giovanni Isella   +6 more
wiley   +1 more source

Study of a wideband high data rate implantable antenna for cortical visual prosthesis. [PDF]

Sci Rep
Ou RX, Yu WL, Xu CZ.
europepmc   +1 more source

Deterministic Fiber‐Optic Spectral Engineering Enables Three‐Color Multiplexed Two‐Photon Microscopy

Laser &Photonics Reviews, EarlyView.
A simulation‐guided spectral‐engineering framework maps the nonlinear parameter space of a fiber laser platform to identify balanced three‐band excitation states. The resulting 960, 1080, and 1175 nm femtosecond pulses deliver nJ‐level energies for low‐cross‐talk chromatically multiplexed two‐photon microscopy.
Marvin Edelmann, Andreu Matamoros‐Angles, Mohsin Shafiq, Mikhail Pergament, Franz X. Kärtner, Markus Glatzel   +5 more
wiley   +1 more source

A Compact Trowel-Shaped Antenna for Next-Generation 6G Wireless Communication Systems. [PDF]

Sensors (Basel)
Soothar P, Wang H, Dayo ZA, Kakepoto FG, Shaikh FK.   +4 more
europepmc   +1 more source

High Efficiency NIR Luminescence Beyond 900 nm Through Promoting Cr3+ Pair Generation in Sr3Zr2O7 Layered Perovskite

Laser &Photonics Reviews, EarlyView.
A Cr3+/La3+ codoped Sr3Zr2O7 NIR phosphor showing luminescence at ∼960 nm with high IQE/EQE (92.4%/57.5%) and good thermal stability was developed. La3+ stabilizes Cr3+ and induces Cr3+ pairs, enabling efficient blue‐to‐NIR conversion for underwater wireless optical communication.
Zhiyuan Pan, Sihan Feng, Yun Wang, Xuejiao Wang, Qi Zhu, Ji‐Guang Li   +5 more
wiley   +1 more source