Results 51 to 60 of about 169,549 (347)

Waveguide coupling gratings for high-sensitivity biochemical sensors [PDF]

, 1997
Grating coupling is now currently used in evanescent-wave biochemical sensors as a waveguide coupling element or as the sensing element. In most coupling cases of practical interest, the Rayleigh-Fourier method is valid, and leads to physically ...
Lyndin, N.M., Parriaux, O., Sychugov, V.A., Tishchenko, A.V.   +3 more
core   +3 more sources

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Characteristics and application of the asymmetric slab waveguide in optical integrated circuit [PDF]

, 2008
In this chapter, consists of demand in optical networking for photonic components that meet performance criteria as well as economic requirements has opened the door for novel technologies capable of high-yield
Adam, Ismahayati, Idrus, Sevia Mahdaliza, Mohd. Yusop, Zulkifli, R. Tanny, Gloria   +3 more
core  

The observation of photon echoes from evanescently coupled rare-earth ions in a planar waveguide

, 2015
We report the measurement of the inhomogeneous linewidth, homogeneous linewidth and spin state lifetime of Pr3+ ions in a novel waveguide architecture. The TeO2 slab waveguide deposited on a bulk Pr3+:Y2SiO5 crystal allows the 3H4 - 1D2 transition of Pr3+
Bartholomew, John G., Madden, Stephen, Marzban, Sara, Sellars, Matthew J., Vu, Khu   +4 more
core   +1 more source

Substrate Integrated Waveguide Filter–Amplifier Design Using Active Coupling Matrix Technique

IEEE transactions on microwave theory and techniques, 2020
This article presents a comprehensive active ${N}\,\,+ 4$ coupling matrix approach for the design of integrated filter–amplifier. The feedback between gate and drain, which is neglected in a previous work, is considered, which improves the accuracy of ...
Yang Gao, Fan Zhang, X. Lv, Cheng Guo, X. Shang, Lei Li, Jiashan Liu, Yuhuai Liu, Yi Wang, M. Lancaster   +9 more
semanticscholar   +1 more source

Speckle‐Engineered Upconversion Amplification in Nanoemulsion‐Templated Hydrogel Microdomes

Advanced Functional Materials, EarlyView.
Nanoemulsion‐confined PEGDA microdomes generate speckle‐like excitation fields that strongly amplify upconversion luminescence upon dehydration, enabling filter‐free visible readout with reversible on–off switching. DMD‐based lithography yields scalable, shape‐programmable arrays for moisture‐responsive displays and optical encryption.
Chaeyeong Ryu, Byungcheon Yoo, Seunghun Lee, Hyungyo Jeong, Sanggyun Jeong, Heesu Cho, Jongwon Oh, Dahye Baek, Jongkyu Kim, Yubin Lee, Eunsu Gu, Dong‐Hwan Kim, Jung‐Hoon Park, Jiseok Lee   +13 more
wiley   +1 more source

Antenna Array Design Based on Low-Temperature Co-Fired Ceramics

Micromachines
With the continuous development of wireless communication technology, the frequency band of 6G communication systems is moving towards higher frequencies such as millimeter waves and terahertz.
Lu Teng, Zhongjun Yu, Dali Zhu, Chengxiang Hao, Na Jiang   +4 more
doaj   +1 more source

Hybrid HMSIW Cavities Antenna With a Half-Pentagon Ring Slot for Bandwidth Enhancement

IEEE Access, 2023
A substrate-integrated waveguide (SIW) antenna is an implementation of a waveguide antenna in a microstrip antenna. The microstrip antenna, as a low-profile antenna, suffers from narrow impedance bandwidth.
Dian Widi Astuti, Yuyu Wahyu, Fitri Yuli Zulkifli, Eko Tjipto Rahardjo   +3 more
doaj   +1 more source

A Three-Pole Substrate Integrated Waveguide Bandpass Filter Using New Coupling Scheme [PDF]

, 2015
A novel three-pole substrate integrated waveguide (SIW) bandpass filter (BPF) using new coupling scheme is proposed in this paper. Two high order degenerate modes (TE102 and TE201) of a square SIW cavity and a dominant mode (TE101) of a rectangular SIW ...
Guan, X., Huang, W., Liu, H., Yuan, Y.
core   +2 more sources

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source