Results 91 to 100 of about 13,916 (292)

Electro‐Steric Ion Confinement in Polyelectrolyte Networks for Robust Nonvolatile Artificial Synapse

Advanced Functional Materials, EarlyView.
Polyelectrolyte stoichiometry governs ion transport and retention in electrolyte‐gated synaptic transistors. A PSS‐rich network creates electro‐steric ion confinement that suppresses ion back‐diffusion and stabilizes channel doping, enabling robust nonvolatile synaptic memory, linear weight updates, and low‐energy operation.
Donghwa Lee, Jinbo Kim, Myeongjin An, Jisoo Park, Junho Sung, Eunsung Hwang, Suhwan Seok, Seong‐Min Bak, Jeonghun Kim, Eunho Lee   +9 more
wiley   +1 more source

Nanostructured optical fibre tapers and related applications

, 2013
In the last decade, optical fibre tapers have attracted considerable interest because they offer a variety of enabling properties, including large evanescent fields, flexibility, configurability, high confinement, robustness and compactness.
Ding, Ming
core  

Investigations into the design and fabrication of silicon photonic broadband wavelength selective switches and filters

, 2012
Silicon photonics offers great promise for widespread deployment of Opto Electronic Integrated Circuits (OEIC) and Photonic Integrated Circuits (PIC) devices in the near future.
Prabhathan, Patinharekandy
core   +1 more source

Structural Color Filters Enabled by a Dielectric Metasurface Incorporating Hydrogenated Amorphous Silicon Nanodisks

Scientific Reports, 2017
It is advantageous to construct a dielectric metasurface in silicon due to its compatibility with cost-effective, mature processes for complementary metal-oxide-semiconductor devices.
Chul-Soon Park, Vivek Raj Shrestha, Wenjing Yue, Song Gao, Sang-Shin Lee, Eun-Soo Kim, Duk-Yong Choi   +6 more
doaj   +1 more source

Blood Biomarkers and Surface‐Enhanced Raman Spectroscopy for Gout: A Comprehensive Review

Advanced Functional Materials, EarlyView.
Schematic illustrating gout disease progression from asymptomatic hyperuricemia to chronic tophaceous disease, highlighting the limitations of conventional imaging and biochemical diagnostics and the potential of engineered SERS platforms for ultrasensitive blood‐based detection of urate‐related biomarkers across disease stages, with the color gradient
Isuri Perera, Chiranjeevi Kanike, Appurva Tiwari, Hongyan Wu, Larry D. Unsworth, Ben Bin Xu, Xuehua Zhang   +6 more
wiley   +1 more source

Green-pumped, picosecond MgO:PPLN optical parametric oscillator

, 2011
We investigate the performance of a magnesium-oxide-doped periodically poled lithium niobate crystal (MgO:PPLN) in an optical parametric oscillator (OPO) synchronously-pumped by 530nm, 20ps, 230MHz pulses with an average power of up to 2W from a ...
Florian Kienle, Dejiao Lin, Lin, Dejiao, David J. Richardson, Major, Huw, Richardson, David J., Kienle, Florian, Shepherd, David P., Shaif-ul Alam, Gawith, Corin B.E., Corin B. E. Gawith, Hung, Hazel, Huw E. Major, Alam, Shaif-ul, David P. Shepherd, Hazel S. S. Hung   +15 more
core   +1 more source

Tunable semiconductor ring laser with filtered optical feedback: Traveling wave description and experimental validation [PDF]

, 2017
We study experimentally and theoretically a semiconductor ring laser with four filtering channels providing filtered delayed optical feedback. To describe and analyze the wavelength selection and tuning in this device, we exploit the traveling-wave model
Khoder, Mulham, Danckaert, Jan, Mulham Khoder, Jan Danckaert, Tronciu, Vasile Z., Tronciu, Vasile, Verschaffelt, Guy, Vasile Tronciu, Mindaugas Radziunas, Guy Verschaffelt, Radziunas, Mindaugas   +10 more
core   +1 more source

Nanophotonic Bragg grating assisted Mach–Zehnder interferometers for O-band add-drop filters

Scientific Reports
Spectral filters are fundamental building blocks in integrated photonics. Bragg grating filters have been demonstrated in silicon waveguides with a wide range of spectral responses and are suitable for wavelength division multiplexing applications ...
Alejandro Fernández-Hinestrosa, José Manuel Luque-González, Pavel Cheben, Jens H. Schmid, Shurui Wang, J. Gonzalo Wangüemert-Pérez, Iñigo Molina-Fernández, Alejandro Ortega-Moñux   +7 more
doaj   +1 more source

Wideband Dual-Polarized Filtering Antennas Using Short-Circuited Coupling Structure for 4G/5G Multi-Input-Multi-Output (MIMO) Antenna Decoupling Design

Photonics
A short-circuited coupling structure (SCCS) is proposed to obtain a gain-filtering response for dual-polarized antennas. A conventional dipole is designed with two intrinsic radiation nulls.
Haitao Song, Feifei Zhang, Baoxing Duan
doaj   +1 more source

Powering Nanocrystal‐Based Heat Engines With Light‐Emitting Metasurfaces That Influence Their Temperature

Advanced Functional Materials, EarlyView.
Metasurfaces and other structured photonic environments can dramatically modify the absorption and/or light emission of semiconductors. However, the consequences of these changes on the temperature of the system are not well understood. The authors address this problem for colloidal nanocrystals and leverage their findings to convert light into ...
Hugo Kowalczyk, Yihao Yuan, Augustin Caillas, Amel Saidoun, Roméo Bonnet, Pascal Filloux, Emmanuel Lhuillier, Aloyse Degiron   +7 more
wiley   +1 more source