Results 51 to 60 of about 774 (212)

Active angular tuning and switching of Brewster quasi bound states in the continuum in magneto-optic metasurfaces

Nanophotonics, 2021
Bound states in the continuum (BICs) emerge throughout physics as leaky/resonant modes that remain, however, highly localized. They have attracted much attention in photonics, and especially in metasurfaces.
Abujetas Diego R., de Sousa Nuno, García-Martín Antonio, Llorens José M., Sánchez-Gil José A.   +4 more
doaj   +1 more source

Cascades of quasi‐bound states in the continuum

Nanophotonics
Abstract Future technologies aim to radically increase photonic integration, which can be achieved either by structuring the materials or by cleverly manipulating photonic resonances. The latter method involves several tunable resonant modes in a single simple structure.
Nikolay Solodovchenko, Mikhail Bochkarev, Kirill Samusev, Mikhail Limonov   +3 more
openaire   +2 more sources

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo, Weisi Dai, Jie Mao, Mei Ye, Xingshan Lu, Xiaocui Zhang   +5 more
wiley   +1 more source

Nonradiating photonics with resonant dielectric nanostructures

Nanophotonics, 2019
Nonradiating sources of energy have traditionally been studied in quantum mechanics and astrophysics but have received very little attention in the photonics community. This situation has changed recently due to a number of pioneering theoretical studies
Koshelev Kirill, Favraud Gael, Bogdanov Andrey, Kivshar Yuri, Fratalocchi Andrea   +4 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Active Formation of Friedrich–Wintgen Bound States in the Continuum in a Hybrid Plasmonic–Photonic Structure

Advanced Photonics Research
The Friedrich–Wintgen bound state in the continuum (FW BIC) provides a unique approach for achieving high quality factor (Q‐factor) resonance, which has attracted wide attention and promoted the development of various applications. However, the FW BIC is
Xiao‐Fei Yan, Xin‐Yang Wang, Qi Lin, Ling‐Ling Wang, Gui‐Dong Liu   +4 more
doaj   +1 more source

Giant circular dichroism and ultra-high Q-factor resonance induced by qBIC excitation in oblique lattice metasurfaces

Results in Physics
Chiral metasurfaces exhibiting narrow-band circular dichroism play a crucial role in chiral optics. Enhancing the quality factors (Q-factors) of their chiral response and achieving dynamic tuning of circular dichroism (CD) have emerged as research ...
Shuyuan lv, Huang Wei, Wenfeng Luo, Bosen Zhai, Ziwen Su   +4 more
doaj   +1 more source

Active nonlocal metasurfaces

Nanophotonics, 2020
Actively tunable and reconfigurable wavefront shaping by optical metasurfaces poses a significant technical challenge often requiring unconventional materials engineering and nanofabrication.
Malek Stephanie C., Overvig Adam C., Shrestha Sajan, Yu Nanfang   +3 more
doaj   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

FEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Achieving asymmetry parameter-insensitive resonant modes through relative shift–induced quasi-bound states in the continuum

Nanophotonics
High-Q resonances in metasurfaces, stemming from symmetry-protected bound states in the continuum (BICs), have proven to be effective for achieving high-performance optical devices.
Sang Tian, Mi Qing, Yang Chaoyu, Zhang Xianghu, Wang Yueke, Ren Yongze, Xu Ting   +6 more
doaj   +1 more source