Results 101 to 110 of about 2,499,047 (376)

Security of discrete-modulated continuous-variable quantum key distribution [PDF]

open access: yesQuantum
Continuous variable quantum key distribution with discrete modulation has the potential to provide information-theoretic security using widely available optical elements and existing telecom infrastructure.
Stefan Bäuml   +4 more
doaj   +1 more source

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

A modulator for discrete trains of pulses [PDF]

open access: yesElectroencephalography and Clinical Neurophysiology, 1965
Abstract A circuit is described which provides a means of modulating trains of pulses of duration from 1 msec up to 1.5 sec. This device was especially designed for use with Grass Instruments Co. stimulators so that only one stimulator is needed for generating trains of pulses.
openaire   +3 more sources

Tuning the Selectivity of the CO2 Reduction Reaction by Means of Synergistic Interactions in the Cu, Ag, Ce System

open access: yesAdvanced Functional Materials, EarlyView.
Multi‐metal Cu─Ce─Ag nanoparticles harness synergistic interactions to drive efficient electrochemical CO2 reduction reaction toward C2+ products at high current densities. Ag enhances CO production, Ce modulates Cu oxidation states, and together they boost *CO coverage and local pH to enhance C─C coupling, enabling record C2+ yields with suppressed ...
Nini Zhang   +9 more
wiley   +1 more source

Discrete multitone modulation with principal component filter banks [PDF]

open access: yes, 2001
Discrete multitone (DMT) modulation is an attractive method for communication over a nonflat channel with possibly colored noise. The uniform discrete Fourier transform (DFT) filter bank and cosine modulated filter bank have in the past been used in this
Akkarakaran, Sony   +3 more
core  

Vibration-induced Kondo tunneling through metal-organic complexes with even electron occupation number

open access: yes, 2005
We investigate transport through a mononuclear transition-metal complex with strong tunnel coupling to two electrodes. The ground state of this molecule is a singlet while the first excited state is a triplet.
K. Kikoin   +3 more
core   +1 more source

The effect of acceleration on continuous-variable quantum key distribution with discrete modulation

open access: yesThe European Physical Journal Plus, 2023
Leixin Wu   +4 more
semanticscholar   +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

Research on single carrier frequency domain equalization system based on FQPSK modulation

open access: yesITM Web of Conferences, 2018
Feher-patented quadrature phase shift keying (fqpsk) modulation is proposed for single-carrier frequency domain equalization (sc-fde). this paper puts forward a new method modulation called cc-bcd-fqpsk.
Zhang Meng, Bie Zhisong
doaj   +1 more source

Experimental Comparison of PAM, CAP, and DMT Modulations in Phosphorescent White LED Transmission Link

open access: yesIEEE Photonics Journal, 2015
In the paper, an experimental comparison of pulse amplitude, carrierless amplitude-phase, and discrete multitone modulations is carried in a visible light communications link employing white phosphorescent light-emitting diode (LED) as a transmitter.
G. Stepniak, L. Maksymiuk, J. Siuzdak
doaj   +1 more source

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