Results 121 to 130 of about 847,683 (321)

Reverse Intersystem Crossing and Exciton Harvesting: A Pathway to Low Threshold in Multi‐Resonant TADF Electrically Pumped Organic Semiconductor Lasers

Advanced Optical Materials, EarlyView.
Electrically pumped organic lasing thresholds are lowered by mitigating triplet accumulation through a tailored host‐guest system. Integrating the multi‐resonant TADF emitter DABNA‐2 into a triplet‐scavenging BSBCz host suppresses singlet‐triplet annihilation.
Adam Bickerdike, Mahdiyar Nouri‐Rezaie, Takuji Hatakeyama, Chris Groves, Chihaya Adachi, Mujeeb U. Chaudhry, Roderick C. I. MacKenzie   +6 more
wiley   +1 more source

Indoor Positioning for Multiphotodiode Device Using Visible-Light Communications

IEEE Photonics Journal, 2016
With the widespread use of light-emitting diodes (LEDs) for lighting, their ability to support communications through visible light has become promising for various wireless applications.
Wei Xu, Jia Wang, Hong Shen, Hua Zhang, Xiaohu You   +4 more
doaj   +1 more source

MIMO Underwater Visible Light Communications: Comprehensive Channel Study, Performance Analysis, and Multiple-Symbol Detection

, 2017
In this paper, we analytically study the bit error rate (BER) performance of underwater visible light communication (UVLC) systems with binary pulse position modulation (BPPM).
Jamali, Mohammad Vahid, Nabavi, Pooya, Salehi, Jawad A.   +2 more
core   +1 more source

Solution‐Processed Spin‐Polarized Light‐Emitting Diodes of Colloidal Quantum Wells and Magnetic Nanoparticles

Advanced Optical Materials, EarlyView.
All‐solution‐processed spin‐LEDs based on colloidal Fe3O4 nanoparticles and CdSe/CdZnS core/shell CQWs that allows for polarization modulation of electroluminescence are fabricated. With these devices, electrical injection of spin‐polarized carriers from the Fe3O4 nanoparticle layer into the CdSe/CdZnS CQWs is demonstrated, realizing circularly ...
Savas Delikanli, Arinjoy Bhattacharya, Betul Canimkurbey, Chang Huai, Amani Almutairi, Arman Najafi, Hilal Korkut, Farzan Shabani, Furkan Isik, James Pientka, Ibrahim Sarpkaya, Hao Zeng, Richard D. Schaller, Athos Petrou, Hilmi Volkan Demir   +14 more
wiley   +1 more source

A Comprehensive Investigation on Multi-User Interference Effects in Vehicular Visible Light Communications. [PDF]

Sensors (Basel), 2023
Plascencia E, Guan H, Chassagne L, Barrois O, Shagdar O, Căilean AM.   +5 more
europepmc   +1 more source

Modulation Schemes for Visible Light Communications

2019 International Conference on Advanced Communication Technologies and Networking (CommNet), 2019
Visible light communication (VLC) is one of the most recent technological breakthroughs in wireless communications and it is expected to contribute significantly on future generations of mobile communications. The fundamental feature of VLC is the use of visible light spectrum to transmit data along with the traditional use for illumination.
Aliaberi, Amna, Sofotasios, Paschalis C., Muhaidat, Sami   +2 more
openaire   +2 more sources

Application of Expurgated PPM to Indoor Visible Light Communications - Part I: Single-User Systems

, 2013
Visible light communications (VLC) in indoor environments suffer from the limited bandwidth of LEDs as well as from the inter-symbol interference (ISI) imposed by multipath.
Brandt-Pearce, Maite, Noshad, Mohammad
core   +1 more source

Responsive Visible‐Wavelength Metasurfaces from Porous Silicon Based on Fano Guided‐Mode Resonance

Advanced Optical Materials, EarlyView.
The article introduces mesoporous silicon metasurfaces (pSi‐MS) supporting Fano guided‐mode resonances in the visible regime. By combining top‐down lithographic patterning of 2D gratings with bottom‐up electrochemical porosification, the approach realizes a new class of responsive metasurfaces, enabling highly sensitive and portable platforms for small
Tomoshree Dash, Saddam Gafsi, Estevao Marques Dos Santos, Ivan Kravchenko, Judson D. Ryckman   +4 more
wiley   +1 more source

Resource Efficient and Robust RSMA for Visible Light Communications

IEEE Photonics Journal
Spectral efficiency (SE) and energy efficiency (EE) are two main metrics for the transmit design in Visible Light Communications (VLC). However, the SE-optimal and EE-optimal strategies may be in conflict with each other to some extent. In this paper, we
Jianfei Hu, Chen Sun, Jiaheng Wang, Xiqi Gao, Liang Xia, Qixing Wang   +5 more
doaj   +1 more source

Visible Light Communications-Based Assistance System for the Blind and Visually Impaired: Design, Implementation, and Intensive Experimental Evaluation in a Real-Life Situation. [PDF]

Sensors (Basel), 2023
Căilean AM, Avătămăniței SA, Beguni C, Zadobrischi E, Dimian M, Popa V.   +5 more
europepmc   +1 more source