Results 71 to 80 of about 29,335 (280)

Full Vectorial Field Sensing Using Liquid Crystal Droplet Arrays

Advanced Materials, EarlyView.
An inkjet‐printed liquid crystal droplet array enables compact, low‐cost, single‐shot sensing of the full vectorial light field. Within a single platform, it simultaneously retrieves intensity, polarization, and phase, while dual‐wavelength operation highlights its capability for multi‐wavelength optical field characterization. ABSTRACT Determining the
Xuke Qiu, Jinge Guo, Jiahe Cui, Runchen Zhang, Zimo Zhao, Yifei Ma, Waqas Kamal, Steve J. Elston, Alfonso A. Castrejón‐pita, Stephen M. Morris, Chao He   +10 more
wiley   +1 more source

Wireless EEG signal transmission using visible light optical camera communication [PDF]

, 2018
Electroencephalogram (EEG) has been widely adopted for the brain monitoring. The transmission of the EEG signals captured from the scalp using electrodes to a displayed screen is often performed through wires utilizing Radio Frequency (RF) communication
Dai, Xuewu, Binns, R, Xuewu Dai, Geetika Aggarwal, Saatchi, R, Dai, X, Saatchi, Reza, Binns, Richard, Dai, Xuweu, Richard Binns, Bentley, E, Reza Saatchi, Edward Bentley, Busawon, Krishna, Bently, Edward, Krishna Busawon, Aggarwal, Geetika, Bentley, Edward, Aggarwal, G, Busawon, K   +19 more
core   +1 more source

Enhancing Optical Camera Communication Performance for Collaborative Communication Using Positioning Information

IEEE Access
Optical camera communication (OCC) has emerged as a promising alternative technology for radio frequency (RF)-based communication systems. However, existing OCC approaches only consider transmitting data through broadcasting, without any ability for ...
Ida Bagus Krishna Yoga Utama, Ones Sanjerico Sitanggang, Muhammad Rangga Aziz Nasution, Md. Ibne Joha, Jaejun Yoo, Yeong Min Jang   +5 more
doaj   +1 more source

Near‐Unity Chiral Lasing Enabled by Quasi‐Bound States in the Continuum

Advanced Materials, EarlyView.
Nanoimprinted chiral array that supports bound states in the continuum is doped with an efficient non‐chiral molecule (Rhodamine‐B) acting as gain medium to produce fully circularly polarized lasing emission. The chiral lasing wavelength can be tuned across the emission band of Rhodamine‐B by adjusting the coating thickness of the TiO2 high refractive ...
Jose Mendoza‐Carreño, Luis A. Pérez, Carlota Ruiz De Galarreta, Théo Rouanet, M. Isabel Alonso, Agustín Mihi   +5 more
wiley   +1 more source

Automatic Gbps Receiver for Mobile Device in Beam-Steered Infrared Light Communication System [PDF]

, 2022
This work presents a beam-steered infrared light communication (BS-ILC) system that enables high data rate wireless optical transmission to individual mobile users.
Mekonnen, Ketemaw Addis, Tangdiongga, Eduward, Mefleh, Ali, Tangdiongga, Eduward; id_orcid, Pham, Ngoc Quan, Koonen, Ton   +5 more
core   +1 more source

Design and implementation of an optical camera communication system using the rolling shutter method and color-shift keying modulation

, 2023
ilustraciones, gráficasEl mundo actual está rodeado de comunicaciones inalámbricas cuyo espectro de radiofrecuencias se encuentra congestionado, dando lugar a buscar otro tipo de alternativas como la comunicación por luz visible que permite enviar datos ...
Ardila Chavarro, Maria del Mar
core   +1 more source

Streaming QR Codes–A Survey

IEEE Access
Streaming QR codes is an optical wireless communication (OWC) technology that uses screen-camera communication (SCC) with dynamic QR codes for visible light communication (VLC).
Vijen Sewpersadh, Narushan Pillay, Hongjun Xu   +2 more
doaj   +1 more source

A Novel Ranging Technique Based on Optical Camera Communications and Time Difference of Arrival

Applied Sciences, 2019
In this work, a new Time Difference of Arrival (TDoA) scheme for distance measurement based on Optical Camera Communication (OCC) systems is proposed.
Jose Rabadan, Victor Guerra, Carlos Guerra, Julio Rufo, Rafael Perez-Jimenez   +4 more
doaj   +1 more source

Bias‐Field Free Single‐Frequency CW‐ODMR of Nitrogen‐Vacancy Centers in Diamond for the Detection of Transient Electrical Signals

Advanced Materials Interfaces, EarlyView.
Simplified quantum sensing technique for the detection of short electrical signals occurring in neuronal signaling or bioinspired technologies. We demonstrate a single frequency continuous‐wave optically detected magnetic resonance (CW‐ODMR) approach to sense signals that can be as short as 0.2 ms.
João Paulo Silva, Orlando D. Cunha, Pedro Magalhães, Filipe Camarneiro, Jana B. Nieder   +4 more
wiley   +1 more source

Ti3C2Tx MXene/Silver Composite Foams For Lightweight, High‐Performance Electromagnetic Interference Shielding and Joule Heating

Advanced Materials Interfaces, EarlyView.
Ultrathin MXene/EMF composite foams achieve a specific shielding efficiency of 749.6 dB.dB·cm3$\mathrm{dB}\cdot {\mathrm{cm}}^{3}$/g, while the silver‐enhanced MXene/Ag/EMF reaches 81.4 dB shielding effectiveness at just 1.0 mm thickness. Both composites exhibit rapid Joule heating, retain stability up to 250∘C$^\circ{\rm C}$, and withstand 1000 ...
Abdullah A. Mahmood, Mingxuan Li, Vahid Rad, Mehdi Zarei, Chen‐Yu Yeh, Masoud Soroush, Guangyong Li, Paul W. Leu   +7 more
wiley   +1 more source