Results 241 to 250 of about 24,430 (301)
Demonstration of a Graphene Adjustable‐Barriers Phototransistor with Tunable Ultra‐High Responsivity
Advanced Optical Materials, EarlyView.A novel graphene‐based phototransistor with a tunable ultra‐high responsivity of 1.7 x 107 AW−1 has been demonstrated. Due to the selected material combination of amorphous silicon, graphene and n‐germanium, the device is potentially capable of dual‐band detection in the VIS‐IR range.
Carsten Strobel +5 more
wiley +1 more source
Large Electrogyration Effect in Ferroaxial NiTiO3 at Near Infrared Wavelengths
Advanced Optical Materials, EarlyView.A large electrogyration effect (electric field‐induced optical rotation) is observed in a ferroaxial crystal NiTiO3 at near infrared wavelengths. The Ni2+ d‐d transitions, featuring strong magnetic dipole character, play an important role in producing the pronounced effect.
Takeshi Hayashida +2 more
wiley +1 more source
Co‐Solvent‐Aided Opto‐Thermophoretic Printing of Gold Nanorod Assemblies
Advanced Optical Materials, EarlyView.A focused laser beam creates a thermal gradient, driving the gold nanorods and polymer coils toward the heated region of the glass substrate, i.e, the laser spot. After the adsorption of the polymer on the gold surface, the nanorods start to assemble onto the surface in a ring‐shaped pattern that grows radially until the beam is turned off.
Ana Jiménez Amaya +4 more
wiley +1 more source
High Sensitivity Spin Defects in Carbon Implanted Diamond
Advanced Optical Materials, EarlyView.Self‐interstitial spin defects in diamond are fabricated in diamond by high energy carbon irradiation. Along with a systematic characterization of their properties, these spin defects demonstrate high sensitivities surpassing previous studies and coherent manipulation of spin states.
Xingni Chai +6 more
wiley +1 more source
Self‐Assembled Physical Unclonable Function Labels Based on Plasmonic Coupling
Advanced Optical Materials, EarlyView.This article introduces advanced anti‐counterfeit labels crafted through DNA‐guided self‐assembly of plasmonic nanoparticles. Utilizing nanosphere lithography for dense and precise nanoparticle placement, these labels feature unique, unclonable optical signatures achieved through plasmonic coupling, detectable by an economical 3D‐printed dark field ...
Mihir Dass +9 more
wiley +1 more source
Microlasers Made Entirely from Edible Substances
Advanced Optical Materials, EarlyView.Several types of microlasers made completely out of edible substances are developed. They can be embedded directly into edible products and enable the sensing of various parameters, including sugar concentration, pH, the presence of bacteria, and exposure to too‐high temperatures.
Abdur Rehman Anwar +4 more
wiley +1 more source
In-chip critical plasma seeds for laser writing of reconfigurable silicon photonics systems
Grojo D +5 more
europepmc +1 more source
Advanced Optical Materials, EarlyView.Laser‐induced graphene (LIG) on a colorless polyimide (CPI) substrate functions as both an electrical heater and a heat spreader, enabling rapid electro‐thermo‐optic actuation. The system achieves reflective beam scanning up to 2 kHz and diffractive beam steering with 0.5‐millidegree resolution and a 0.9 s response time, showcasing LIG‐CPI as a soft ...
Byunggi Kim +5 more
wiley +1 more source