Results 101 to 110 of about 107,774 (274)

Hyperreflective Foci in the Inner Nuclear Layer: Proof‐of‐Concept for an Optical Coherence Tomography Derived Microglia‐Related Marker in Multiple Sclerosis

Annals of Neurology, EarlyView.
The role of microglia has emerged as a critical driver of disease progression in multiple sclerosis (MS), but we lack broadly applicable monitoring tools. Here, we investigated whether hyperreflective foci (HRF), as detected by optical coherence tomography (OCT) within the inner nuclear layer (INL) of the retina, can be used as a marker for microglial ...
Jonathan A. Gernert, Laura M. Bartos, Tara Christmann, Hanna Zausinger, Luca N. Diedrich, Daniel Engels, Miriam Schlüter, Sarah Schlaeger, Sophia Stoecklein, Leonie F. Keidel, Tania Kümpfel, Martin Kerschensteiner, Matthias Brendel, Joachim Havla   +13 more
wiley   +1 more source

Key Challenges for Commercializing Perovskite–Silicon Tandem Solar Cells

Carbon Energy, EarlyView.
This review discusses the scientific and technological challenges in advancing perovskite–silicon tandem solar cells (PSTSCs) from lab‐scale to commercial viability, focusing on long‐term stability, scalability, and economic feasibility. Key issues include intrinsic and extrinsic degradation factors, installation conditions, environmental impacts, and ...
Bilal Mehmood, Yuanyuan Qin, Abdul Sattar, Rabeea Eman, Faheem Abbas, Shan Wu, Yipeng Xu, Xu Zheng, Jiangying Lu, Wei Jiang, Jiankai Liu, Shudi Lu, Shizhong Yue, Zhijie Wang, Kong Liu, Xiaopeng Zheng, Shengchun Qu   +16 more
wiley   +1 more source

Contributions to the Jubilee Symposium of the Photonics Society of Poland for its 15th anniversary by Optica

, 2023
Claus Roll, U. Woggon
openalex   +2 more sources

Mini‐Review: Angular Scattering and Directional Effects in Tip‐Enhanced Raman Spectroscopy

Journal of Raman Spectroscopy, EarlyView.
Mini‐review: Angular scattering and directional effects in tip‐enhanced Raman spectroscopy. Felix Schneider, David Baschnagel, Tim Parker, Yang Zhao, Alfred J. Meixner*, Dai Zhang*. This mini‐review examines angular scattering and directional effects in tip‐enhanced Raman spectroscopy (TERS), emphasizing their importance for quantitative interpretation
Felix Schneider, David Baschnagel, Tim Parker, Yang Zhao, Alfred J. Meixner, Dai Zhang   +5 more
wiley   +1 more source

Optical spectra of fiber lasers operating at two microns

Open Physics
This letter compares the optical spectra of holmium- and thulium-doped silica fiber lasers operating in the continuous-wave regime with an output power of about 10 W.
Barmenkov Yuri, Muniz-Canovas Pablo, Alatorre-Félix Miriam A., Aboites Vicente   +3 more
doaj   +1 more source

Recent Advances in Photonic Bound States in the Continuum: From Fundamentals to Engineering and Implementation

Laser &Photonics Reviews, EarlyView.
This review summarizes recent progress in meta‐photonics with a focus on bound states in the continuum (BICs) as a powerful platform for light confinement and control. It covers fundamental concepts, design strategies across optical regimes, symmetry breaking for practical quasi‐BICs, tunable and AI‐assisted BIC devices, and emerging applications in ...
Hafiz Saad Khaliq, Hak‐Rin Kim
wiley   +1 more source

On the Feasibility of Implementing a Four-Quadrant CMOS Analog Multiplier Using Only Digital Inverter Standard-Cells as Building Blocks

IEEE Access
This work introduces the first four-quadrant CMOS analog multiplier circuit built entirely from digital inverter standard cells, without requiring any analog transistor-sizing methodologies.
Gregorio Zamora-Mejia, Victor H. Carbajal-Gomez, Alejandro Silva-Juarez, Luis C. Alvarez-Simon, Alejandro Diaz-Sanchez, Sergio A. Rosales-Nunez, Julio N. Hernandez-Perez, Rodrigo Jaramillo-Ramirez, Ernesto Conde-Almada, Alejandro I. Bautista-Castillo, Jose M. Rocha-Perez   +10 more
doaj   +1 more source

Current and emerging therapeutics for neuromyelitis optica spectrum disorder: Relevance to the COVID-19 pandemic [PDF]

, 2020
Hesham Abboud, Crystal Zheng, Indrani Kar, Claire Kaori Chen, Crystal Sau, Alessandro Serra   +5 more
openalex   +1 more source

Broadband Mode Converter With Customizable Modal Ratio Leveraging Subwavelength Engineering for Advanced Multimode Silicon Photonics

Laser &Photonics Reviews, EarlyView.
This work introduces a customizable mode converter for multimode silicon photonics, enabling precise control over the conversion ratio between optical modes. The device operates across a broad wavelength range (1350–1700 nm) with 15 distinct conversion levels.
Raquel Fernández de Cabo, Alejandro Sánchez‐Sánchez, Paula Nuño Ruano, Roy Ronald Prosopio Galarza, Daniele Melati, Carlos Alonso‐Ramos, Aitor V. Velasco, David González‐Andrade   +7 more
wiley   +1 more source

In vivo confocal microscopy evaluation of infiltrated immune cells in corneal stroma treated with cell therapy in advanced keratoconus

Journal of Ophthalmic Inflammation and Infection
Purpose This study investigates immune cell (ICs) infiltration in advanced keratoconus patients undergoing autologous adipose-derived adult stem cell (ADASC) therapy with recellularized human donor corneal laminas (CL).
Mona El Zarif, Karim Abdul Jawad, Jorge L. Alió, Nehman Makdissy, María P. De Miguel   +4 more
doaj   +1 more source