Results 111 to 120 of about 127,186 (271)

Mapping of Physiological Signals From Wireless Battery‐Free Implants With Plane‐Wave Ultrasound Imaging

Advanced Materials Technologies, EarlyView.
Combined approach of electromagnetic (Power) and ultrasound (data harvesting) waves is proposed to address the miniaturized ultrasonic implants. Electromagnetic waves trigger the piezoelectric element to generate the acoustic pulse which is modulated by the variations in the sensor's impedance.
Anam Bhatti, Hugo Guillot, Ouafae Firdaouissi, Mohammed Irar, Lionel Rousseau, Clément Hébert, Maxime Lafond   +6 more
wiley   +1 more source

Elucidating the Mechanism behind the Enhancement of Persistent Luminescence in ZnGa2O4: Cr3+ Nanoparticles upon H2O2 Exposure

Advanced Optical Materials, EarlyView.
ABSTRACT Persistent luminescence (PersL) materials exhibit prolonged emission of light, lasting from seconds to hours after stopping the excitation. At the nanoscale, they have attracted considerable interest for applications in in vivo imaging, photodynamic therapy, and biosensing.
Celina Matuszewska, Izabel Mazon Anselmo, Mathilde Chaboud, Dimitri Mercier, Zied Ferjaoui, Cyrille Richard, Bruno Viana, Corinne Chaneac   +7 more
wiley   +1 more source

Nonclassicalities of two-mode photon‑added coherent states

Results in Physics
One of the most promising nonclassical states in the context of quantum optics are hybrid coherent states, which include a combination of coherent states and single-photon-added coherent states.
Hassan Sobhani, Hoda Lotfipoor, Mohamad Taghi Dejpasand   +2 more
doaj   +1 more source

Projector‐Induced Waveguide Encoded Lattices (ProWELs) with Optical Functionality: From Enhanced Fields of View (FOV) to 3D Data Encoding

Advanced Optical Materials, EarlyView.
We describe the fabrication of 3D polymeric waveguide architectures with tunability of waveguide diameter, lattice symmetry and long and short‐range order using an inexpensive (< $400 CAD) digital light projector. We demonstrate that Projector induced Waveguide Encoded Lattices (ProWELs) possess advanced functionality including tuneable Fields of View (
Kyle Stegman, Dusan Srdic, Fariha Mahmood, Kalaichelvi Saravanamuttu   +3 more
wiley   +1 more source

Controlling Ultrafast Photonic‐Plasmonic Coupling in a Hybrid Platform for Biosensing Applications

Advanced Optical Materials, EarlyView.
A metal–dielectric hybrid composed of gold nanocaps on opal exhibits a broad near‐infrared plasmonic resonance interacting with the photonic bandgap under ultrafast transient conditions. This coupling can be controlled by varying the excitation wavelength and is responsive to bacterial deposition, opening new opportunities for ultrafast biosensing ...
Diego Florio, Andrea Chiappini, Laura Pasquardini, Mario Barozzi, Monica Bollani, Salvatore Stagira, Tersilla Virgili   +6 more
wiley   +1 more source

Design of Molecular Lanthanide‐Based Quantum Light Sources for On‐Chip Integration

Advanced Optical Materials, EarlyView.
Rigid lanthanide complexes with a tetrapodal tris‐benzimidazolic ligand exhibit narrow, well‐resolved visible/NIR emission profiles suitable for quantum photonics. The EuL complex features an exceptionally sharp 5D₀→7F₀ transition enabled by an LMCT mechanism that suppresses inhomogeneous broadening.
Silvia Bonabello, Rodolpho Alessandro Nesta Silva, Dimitrije Mara, Fabio Travagin, Marzia Petreti, Marco Saccone, Matteo Melegari, Luciano Marchiò, Luca Pilia, Giovanni Battista Giovenzana, Flavia Artizzu   +10 more
wiley   +1 more source

High‐Quality Free‐Standing Diamond Micromembranes for Nanoscale Quantum Sensing

Advanced Optical Materials, EarlyView.
We report a procedure for fabricating low‐damage free‐standing diamond micromembranes, and we show that this fabrication scheme preserves the optical and spin properties of state‐of‐the‐art shallow NV center quantum sensors, within nanometers of the diamond surface, while providing significant photonic enhancement.
Alexander C Pakpour‐Tabrizi, Artur Lozovoi, Sean Karg, Tecla Bottinelli Montandon, Melody Leung, Kai‐Hung Cheng, Nathalie P. de Leon   +6 more
wiley   +1 more source

Unraveling Mechanism of Photoluminescence in Hybrid Indium Halide Materials

Advanced Optical Materials, EarlyView.
Halide substitution in isolated [InHal6]3− octahedra reveals how bromide incorporation governs photoluminescence properties in hybrid indium halides. Ligand‐to‐metal charge transfer excitation followed by recombination produces a red‐shift and steadily increasing photoluminescence efficiency with increasing Br content.
Aleksandra D. Valueva, Emily M. Chopra, Vladislav V. Klepov   +2 more
wiley   +1 more source

Coherent all Optical Reservoir Computing for Equalization of Impairments in Coherent Fiber Optic Communication Systems

IEEE Photonics Journal
Reservoir computing (RC) is a bio-inspired framework suited for temporal data processing. Here we propose an all optical coherent RC for the equalization of the impairments of fiber optic (FO) system based on coherent detection.
Shiva Kumar, Mahmoud M. T. Maghrabi, Mohamed H. Bakr, Toshihiko Hirooka, Masataka Nakazawa   +4 more
doaj   +1 more source

Quantum Electrometry of Non‐Volatile Space Charges in Diamond

Advanced Optical Materials, EarlyView.
Charges are generated when nitrogen vacancy qubits in diamond are illuminated by light. Transport and trapping in an electric field leads to the formation of large, stable space charge patterns that dynamically screen applied electric fields, impacting electric field sensing and photoelectric detection.
Russell M Goldblatt, Nikolai Dontschuk, Daniel J McCloskey, Andy M Martin, Alexander A. Wood   +4 more
wiley   +1 more source