Results 171 to 180 of about 109,599 (297)

Organic crystal active waveguide as an all-angle signal receiver and transmission platform for encrypted visible light communication. [PDF]

Nat Commun
Khapre A, Hazarika J, Chandrasekar R.
europepmc   +1 more source

Exploring the Effects of LED-Based Visible Light Communication on Reading and Color Perception in Indoor Environments: An Experimental Study. [PDF]

Sensors (Basel), 2023
Caputo S, Mucchi L, Comparetto R, D'Antoni V, Farini A, Orsi V, Baldanzi E.   +6 more
europepmc   +1 more source

Aerosol Jet Printed Polymer‐Free High Aspect Ratio Quantum Dot Films for Enhanced Color Conversion

Advanced Optical Materials, EarlyView.
Polymer‐free quantum dot color conversion layers are aerosol jet printed at high aspect ratio by tuning the aerosol focus ratio to induce in‐flight droplet drying. Contact‐line pinning suppresses lateral spreading, enabling ∼10 µm‐thick films at ∼50 µm widths with blue light leakage below 0.25% and conversion efficiency approaching 18%, demonstrated ...
Sukyung Choi, Anna Meredith, Hyunsu Cho, Zahra Bahrami, Kevin Schnittker, Joseph Andrews   +5 more
wiley   +1 more source

Robust and efficient image transmission in power-constrained underwater visible light communication systems using neural architecture search. [PDF]

Sci Rep
Jin Q, Deng B, Fu HY, Khan FN.
europepmc   +1 more source

A New COVID-19 Detection Method Based on CSK/QAM Visible Light Communication and Machine Learning. [PDF]

Sensors (Basel), 2023
Soto I, Zamorano-Illanes R, Becerra R, Palacios Játiva P, Azurdia-Meza CA, Alavia W, García V, Ijaz M, Zabala-Blanco D.   +8 more
europepmc   +1 more source

Mitigating Efficiency Roll‐Off in Phosphor‐Sensitized Fluorescence OLEDs via Molecular Polarity‐Based Benzofuropyridine Host Engineering

Advanced Optical Materials, EarlyView.
Positional isomerism in dibenzofuran‐based n‐type hosts modulates molecular polarity, charge‐transport balance, and emissive‐layer packing. The higher‐polarity BFPDB‐2 host facilitates efficient energy funneling, reduced aggregation, and preferential dipole orientation, leading to phosphor‐sensitized fluorescence OLEDs with enhanced external quantum ...
Nargis Ali, Xuyao Song, Yun‐Hi Kim, Min Chul Suh   +3 more
wiley   +1 more source

Visible Light Communication Systems

, 2014
With the radio frequency spectrum becoming crowded, an alternative means to wireless communication is necessary to accommodate the exponentially increasing wireless traffic demand.
Barney, Casey David, Koufos, Dennis N., Dich, Alexander   +2 more
core  

Line-of-sight stability in unmanned aerial vehicle relays for hybrid free-space optical and visible light communication links under atmospheric effects. [PDF]

PLoS One
Sliti M, Ghafoor S, Ayouni S, Mrabet M, Ammar LB, Ijaz M.   +5 more
europepmc   +1 more source

Bi-Directional Free-Space Visible Light Communication Supporting Multiple Moveable Clients Using Light Diffusing Optical Fiber. [PDF]

Sensors (Basel), 2023
Chang YH, Chow CW, Lin YZ, Jian YH, Wang CC, Liu Y, Yeh CH.   +6 more
europepmc   +1 more source

Direct Measurement of the Singlet Lifetime and Photoexcitation Behavior of the Boron Vacancy Center in Hexagonal Boron Nitride

Advanced Optical Materials, EarlyView.
Negatively charged boron vacancy defects in hexagonal boron nitride promise near‐surface quantum sensing, but their internal spin transition rates are only partly understood. This work directly measures the defect's singlet‐state lifetime, 15(3) ns, using a nanosecond rise‐time dual‐pulse photoluminescence‐recovery method, and shows that high laser ...
Richard A. Escalante, Andrew J. Beling, Daniel G. Ang, Niko R. Reed, Justin J. Welter, John W. Blanchard, Cecilia Campos, Edwin Coronel, Klaus Krambrock, Alexandre S. Leal, Paras N. Prasad, Ronald L. Walsworth   +11 more
wiley   +1 more source