Results 81 to 90 of about 26,548 (312)

Ti3C2Tx MXene/Silver Composite Foams For Lightweight, High‐Performance Electromagnetic Interference Shielding and Joule Heating

open access: yesAdvanced Materials Interfaces, EarlyView.
Ultrathin MXene/EMF composite foams achieve a specific shielding efficiency of 749.6 dB.dB·cm3$\mathrm{dB}\cdot {\mathrm{cm}}^{3}$/g, while the silver‐enhanced MXene/Ag/EMF reaches 81.4 dB shielding effectiveness at just 1.0 mm thickness. Both composites exhibit rapid Joule heating, retain stability up to 250∘C$^\circ{\rm C}$, and withstand 1000 ...
Abdullah A. Mahmood   +7 more
wiley   +1 more source

Spectral Engineering With CMOS Compatible SOI Photonic Molecules

open access: yesIEEE Photonics Journal, 2013
Photonic systems based on microring resonators have a fundamental constraint given by the strict relationship among free spectral range, total quality factor QT , and resonator size, intrinsically making filter spacing, photonic lifetime, and footprint ...
Luis A. M. Barea   +3 more
doaj   +1 more source

Numerical modelling of photonic crystal based switching devices

open access: yes, 2012
In the last few years research has identified Photonic Crystals (PhCs) as promising material that exhibits strong capability of controlling light propagation in a manner not previously possible with conventional optical devices.
Selim, Ramsey
core  

Double-clad structures and proximity coupling for diode-bar-pumped planar waveguide lasers

open access: yes, 2000
We report, for the first time, fabrication of double-clad planar waveguide structures and their use for multiwatt, diode-bar-pumped, planar waveguide lasers based on Nd3+ and Yb3+-doped YAG.
Shepherd, D.P.   +3 more
core   +1 more source

Advances in Halide Perovskites for Photon Radiation Detectors

open access: yesAdvanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang   +3 more
wiley   +1 more source

Magneto-optical non-reciprocal devices in silicon photonics

open access: yesScience and Technology of Advanced Materials, 2014
Silicon waveguide optical non-reciprocal devices based on the magneto-optical effect are reviewed. The non-reciprocal phase shift caused by the first-order magneto-optical effect is effective in realizing optical non-reciprocal devices in silicon ...
Yuya Shoji , Tetsuya Mizumoto
doaj   +1 more source

Polarization-Independent Mode-Evolution-Based Coupler for the Silicon-on-Insulator Platform

open access: yesIEEE Photonics Journal, 2018
We demonstrate a polarization-independent mode-evolution-based coupler for the silicon-on-insulator platform. The measured coupler has negligible insertion loss over a bandwidth of about 100 nm, i.e., from 1500 to 1600 nm.
Yun Wang   +10 more
doaj   +1 more source

Realization of a vertical integration scheme for polymer waveguides by a novel stacking technology

open access: yes, 2022
S.72-79The rapid growth of communication continuously demands an increasing number of data transport channels. We present an approach towards a substantial growth of channel numbers within the integrated optical waveguide chip.
Streppel, U.   +3 more
core   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

open access: yesAdvanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane   +4 more
wiley   +1 more source

Design and Fabrication of Broadband Polymer Mode (De)Multiplexer Using a Direct Inscribing Method

open access: yesIEEE Photonics Journal, 2018
We demonstrate the design and fabrication of a mode (de)multiplexer based on the tapered mode-selective coupler. The proposed device is directly inscribed in the substrate material by a needle-type liquid micro-dispenser and a three-axis robot stage ...
Xiao Xu   +4 more
doaj   +1 more source

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