Results 111 to 120 of about 360,804 (296)

Circular‐Polarization‐Sensitive Organic Photodetectors with a Chiral Nanopatterned Electrode Inverse‐Designed by Genetic Algorithm

open access: yesAdvanced Functional Materials, EarlyView.
A chiral photodetector capable of selectively distinguishing left‐ and right‐handed circularly polarized light is experimentally demonstrated. The device, which features a nanopatterned electrode inverse‐designed by a genetic algorithm within a metal–dielectric–metal nanocavity that incorporates a vacuum‐deposited small‐molecule multilayer, exhibits ...
Kyung Ryoul Park   +3 more
wiley   +1 more source

GaAs/GaP quantum dots: Ensemble of direct and indirect heterostructures with room temperature optical emission

open access: yes, 2015
We describe the optical emission and the carrier dynamics of an ensemble of self-assembled GaAs quantum dots embedded in GaP(001). The QD formation is driven by the 3.6 % lattice mismatch between GaAs and GaP in Stranski-Krastanow mode after deposition ...
Boeck, T.   +9 more
core   +1 more source

Zwitterionic Self‐Assembled Monolayer for Simultaneous Noise Suppression and Hole Extraction in High‐Performance Near‐Infrared Organic Photodetectors

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a new hole transporting material (HTM) mechanism for self‐assembled monolayers in near‐infrared organic photodetectors. The formation of zwitterions induces a strong electric field that significantly increases the work function of HTM‐coated indium tin oxide substrates. The devices exhibit low dark current and noise, along with high
Jiyoung Shin   +9 more
wiley   +1 more source

Intracellular distribution of nontargeted quantum dots after natural uptake and microinjection

open access: yesInternational Journal of Nanomedicine, 2013
Leona Damalakiene,1 Vitalijus Karabanovas,2 Saulius Bagdonas,1 Mindaugas Valius,3 Ricardas Rotomskis1,21Biophotonics Group, Laser Research Center, Faculty of Physics, 2Biomedical Physics Laboratory, Institute of Oncology, 3Proteomics Center, Institute of
Damalakiene L   +4 more
doaj  

Decoherence and Entanglement Simulation in a Model of Quantum Neural Network Based on Quantum Dots

open access: yesEPJ Web of Conferences, 2016
We present the results of the simulation of a quantum neural network based on quantum dots using numerical method of path integral calculation. In the proposed implementation of the quantum neural network using an array of single-electron quantum dots ...
Altaisky Mikhail V.   +5 more
doaj   +1 more source

Beer's law in semiconductor quantum dots

open access: yes, 2010
The propagation of a coherent optical linear wave in an ensemble of semiconductor quantum dots is considered. It is shown that a distribution of transition dipole moments of the quantum dots changes significantly the polarization and Beer's absorption ...
Adamashvili, G. T., Maradudin, A. A.
core  

Optical spectra of quantum dots: effects of non-adiabaticity

open access: yes, 2003
It is shown that in many cases an adequate description of optical spectra of semiconductor quantum dots requires a treatment beyond the commonly used adiabatic approximation.
Devreese, J. T.   +4 more
core   +1 more source

Atomic‐Scale Light Coupling Control in Ultrathin Photonic Membranes

open access: yesAdvanced Functional Materials, EarlyView.
Ultrathin photonic nanomembranes provide atomic‐scale control over the coupling between incident light and high‐Q photonic modes, enabling angstrom‐level resonance tuning and strong field confinement. When integrated with TMD monolayers, they further yield enhanced light–matter interactions, offering a versatile platform for advancing quantum photonics,
Chih‐Zong Deng   +8 more
wiley   +1 more source

Effect of heat treatment on the growth and luminescence of quantum dots CsPbI3 in fluorophosphate glass

open access: yesНаучно-технический вестник информационных технологий, механики и оптики
The paper examines the influence of heat treatment conditions on the size of quantum dots of CsPbI3 perovskites formed in fluorophosphate glasses and studies their luminescent properties.
G. A. Kapustin   +2 more
doaj   +1 more source

Highly indistinguishable single photons from incoherently and coherently excited GaAs quantum dots

open access: yes, 2019
Semiconductor quantum dots are converging towards the demanding requirements of photonic quantum technologies. Among different systems, quantum dots with dimensions exceeding the free-exciton Bohr radius are appealing because of their high oscillator ...
da Silva, Saimon F. Covre   +8 more
core   +1 more source

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