Results 171 to 180 of about 6,266 (254)

Mode‐Locked Pulse Generation in Plasmonic Lattices

open access: yesLaser &Photonics Reviews, EarlyView.
The plasmonic superlattices overlaid with optically pumped organic molecules produce multimode lasing due to mid‐range radiative coupling (MR‐RC, lambda) and long‐range radiative coupling (LR‐RC, 10 lambda). Right: The mode locking emerges spontaneously due to the shared excited state molecular populations which may emit photons to various different ...
Janne I. Heikkinen   +6 more
wiley   +1 more source

Coating of High Melting Explosive Particles by Nitrotriazolone to Formulate Composite Nanoparticles by Spray Flash Evaporation

open access: yesPropellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT The balance between performance and safety of high explosives is at the heart of the current studies, and new ways of combining safety and performance have hence been elaborated. This study focuses on a mixture of 3‐nitro‐1,2,4‐triazol‐5‐one (NTO) and octogen (high melting explosive [HMX]).
Maxime Blanchon   +5 more
wiley   +1 more source

Prototype of a laser guide star wavefront sensor for the Extremely Large Telescope [PDF]

open access: green, 2018
Mauro Patti   +7 more
openalex   +1 more source

Reactive Nanoparticle Composed Bilayers: An Alternate Route Toward the Production of Pt/Al Nanofoils

open access: yesSmall, EarlyView.
Spark ablation‐assisted gas phase electrodeposition is an alternate route toward Pt/Al self‐propagation reactive system synthesis. Pt film morphology‐dependent reaction kinetics is a significant advantage. Low spark power and gas flow rate produce porous films and slow speeds, while high power and flow rate give three orders of magnitude faster ...
Nishchay A. Isaac   +16 more
wiley   +1 more source

High‐Purity Single Photon Extraction from Diamond Nitrogen‐Vacancy Centers in Low‐Numerical‐Aperture Optical Systems via Defect‐Selective Metalens Printing

open access: yesSmall, EarlyView.
This work addresses a fundamental bottleneck in scalable quantum photonics by enabling high‐purity single‐photon extraction from individual NV centers into ultra‐low numerical aperture (NA) optics. As low‐NA optics are essential for compact and fiber‐integrated quantum platforms, the defect‐selective metalens provides a practical and timely pathway ...
Minseok Jeon   +9 more
wiley   +1 more source

Improving wavefront reconstruction performance with a binary phase hybrid Shack-Hartmann wavefront sensor

open access: gold
Hongli Guan   +8 more
openalex   +1 more source

Optoelectronic Interfaces for Nongenetic Modulation of Excitable Tissues

open access: yesSmall Methods, EarlyView.
This review summarizes recent advances in nongenetic optoelectronic technologies for the modulation of excitable biotissues, covering material selection, device design, and working principles, as well as characterization methods. Representative applications in in vitro and in vivo models of the cardiac, central, and peripheral nervous systems are ...
Qi Wang, Jinghua Li
wiley   +1 more source

An Optically Transparent Transmissive Metasurface for User‐Defined Broadband Electromagnetic Illusion Generation

open access: yesSmall Structures, EarlyView.
This work presents a transparent transmissive metasurface (TTM), designed using a conditional generative adversarial network to achieve broadband electromagnetic illusions. The proposed TTM ensures high optical transparency while precisely manipulating electromagnetic waves, demonstrating effectiveness in practical applications such as camouflage ...
Peixuan Zhu   +7 more
wiley   +1 more source

Multiphysics Inverse‐Design of Multifunctional Freeform Meta‐Radomes

open access: yesSmall Structures, EarlyView.
A multiphysics inverse design is utilized to produce structurally robust, electromagnetically enhanced meta‐radomes. The proposed strategy improves antenna gain by nearly 10 dB while withstanding extreme mechanical loads in a proof‐of‐concept optimization.
Tyler G. Burns   +4 more
wiley   +1 more source

Anomalous‐Energy Runaway Electrons Originating in Fast Ionisation Wave During Pulsed Gas Breakdown

open access: yesHigh Voltage, EarlyView.
ABSTRACT Anomalous‐energy runaway electrons (RAEs), whose energy exceeds the maximum potential difference across the discharge gap, are widely observed in various plasma phenomena. This study investigates the origination of anomalous‐energy RAEs in fast ionisation waves (FIWs) formed during pulsed gas breakdown.
Bangdou Huang   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy