Results 181 to 190 of about 3,958,760 (345)
Mode‐dependent Far‐field Radiation of Circularly Polarized Light by a Single Plasmonic Nanohelix
The numerical simulations explored the chiroptical response and far‐field radiation behaviors of single plasmonic nanoantennas transitioning into helical structures. This study highlights the ability of these plasmonic nanohelices to regulate the far‐field directionality of radiation power and circular polarization in plasmon‐exciton coupled systems ...
Yiou Cui +10 more
wiley +1 more source
Discharge of sedex ore-forming brines into Paleozoic oceans caused global marine Sr-isotope spikes, perturbations to global carbon cycles, global ocean anoxic events (OAEs) and mass extinctions [PDF]
Poul Emsbo +3 more
openalex +1 more source
Benchmarking Organic Photodiodes at the Noise Floor
A precise measurement framework based on a calibrated, ultra‐low‐noise automated setup with open‐source Python scripts enables accurate benchmarking of photodiodes. The unique combination of time‐dependent current measurement under dark conditions, followed by continuous‐wave faint illumination, facilitates reliable extraction of photocurrent near ...
Siddhartha Saggar +2 more
wiley +1 more source
Bay‐functionalized [7]Helicene Bilayer Nanographenes
Bay‐functionalized [7]helical bilayer nanographenes are synthesized via a scalable, modular strategy enabling late‐stage diversification. Tailored methoxy, diketone, and phenazine substitutions precisely tune redox, photophysical, and chiroptical properties, delivering strong electronic circular dichroism and bright circularly polarized luminescence ...
Anmol Thanai +9 more
wiley +1 more source
Progress and Prospects of Persistent Luminescent Nanocrystals in Biomedical Applications
This review summarizes recent progress in materials‐level control of persistent luminescence, including mechanistic understanding, wavelength/intensity tuning, and activation strategies, as well as emerging biomedical applications in imaging, biosensing, cell tracking, optogenetic stimulation, and biophotochemical activation.
Peng Pei +5 more
wiley +1 more source
This paper presents the room‐temperature fabrication of solution‐processed, high refractive index TiOX thin films via photo‐densification. Using these films, flexible Bragg mirrors are demonstrated on PET substrates, achieving a high reflectivity of 96% at 450 nm.
Ayumu Nagaoka +5 more
wiley +1 more source
Modeling and Improving Geometric Accuracy in Projection Multiphoton Lithography
A numerical framework describing the optical and photochemical processes is developed to elucidate the origins of geometric deviations in projection multiphoton lithography. The results indicate that oxygen diffusion and inhibition, and DMD diffraction, lead to geometric distortions.
Anwarul Islam Akash +2 more
wiley +1 more source
The end-Ordovician mass extinction: A single-pulse event?
Guangxu Wang, Renbin Zhan, I. Percival
semanticscholar +1 more source

