Results 151 to 160 of about 109,599 (297)

Model and Methodology to Characterize Phosphor-Based White LED Visible Light Communication Links. [PDF]

Sensors (Basel), 2023
Salvador P, Almenar V, Corral JL, Valls J, Canet MJ.   +4 more
europepmc   +1 more source

Large Faraday Rotation in Liquid Crystals With Embedded Paramagnetic Ions (Cu2+, VO2+) at Room Temperature

Advanced Optical Materials, EarlyView.
Large Faraday rotation at room temperature is observed in thin films of discotic copper (Cu2+: 3d9) and vanadyl (VO2+: 3d1) enaminoketone complexes. The large Verdet constant originates from a high density of paramagnetic centers, metal‐ligand p−d hybridization and π orbitals involved in optical transitions (identified by DFT calculations), as well as ...
Karolina Łempicka‐Mirek, Adam Krówczyński, Mateusz Król, Nevill Gonzalez Szwacki, Paulina Rybak, Damian Pociecha, Paweł W. Majewski, Barbara Piętka, Jacek Szczytko   +8 more
wiley   +1 more source

A Study on Visible Light Communication Systems Based on OLED Devices. [PDF]

Micromachines (Basel)
Zhang W, Xu H, Ji S, Lan J.
europepmc   +1 more source

Investigations on the high performance of InGaN red micro-LEDs with single quantum well for visible light communication applications. [PDF]

Discov Nano, 2023
Hsiao FH, Lee TY, Miao WC, Pai YH, Iida D, Lin CL, Chen FC, Chow CW, Lin CC, Horng RH, He JH, Ohkawa K, Hong YH, Chang CY, Kuo HC.   +14 more
europepmc   +1 more source

Broadband Directional Thermal Radiation with Asymmetric Femtosecond Laser‐Processed Surfaces

Advanced Optical Materials, EarlyView.
Femtosecond laser processing is used to scalably create self‐organized angled microstructures which exhibit highly directional emissivity that occurs for all polarizations. Laser parameters are tuned to alter the surface features, control the direction of emission, and enhance the directional emissivity. Electromagnetic modeling is performed to analyze
Andrew Butler, Andrew Reicks, Jack Schulz, Patrick Hayden, Alireza Kalantari Dehaghi, Kira Marr, Linxiao Zhu, Christos Argyropoulos, Craig Zuhlke   +8 more
wiley   +1 more source

Energy-Efficient Unmanned Aerial Vehicle-Aided Visible Light Communication with an Angle Diversity Transmitter for Joint Emergency Illumination and Communication. [PDF]

Sensors (Basel), 2023
Huang Q, Wen W, Liu M, Du P, Chen C.
europepmc   +1 more source

Thickness‐Dependent Infrared Emissivity of Ultrathin Freestanding MoSiN Nanocomposite Membranes

Advanced Optical Materials, EarlyView.
ABSTRACT Metals and dielectrics show opposite trends in thickness‐dependent infrared emissivity: metallic films exhibit a rise in emissivity below a critical thickness, while dielectric films show a corresponding decline. For applications demanding both high emissivity and mechanical strength in membranes with nanoscale thickness, combining these ...
Reethu Sebastian, Amrid Amnache, Nadi Braidy, Luc G. Fréchette   +3 more
wiley   +1 more source

An Open-Source QAM MODEM for Visible Light Communication in FPGA for Real-Time Applications. [PDF]

Sensors (Basel)
Ricci S.
europepmc   +1 more source

Transfer Learning Strategy in Neural Network Application for Underwater Visible Light Communication System. [PDF]

Sensors (Basel), 2022
Xu Z, Shi J, Niu W, Qin G, Jin R, He Z, Chi N.   +6 more
europepmc   +1 more source

Exciton Radiative Lifetimes in Hexagonal Diamond Ge and SixGe1–x Alloys

Advanced Optical Materials, EarlyView.
Strong room‐temperature photoluminescence reported in hexagonal Ge conflicts with theory predicting a nearly dark band edge. First‐principles calculations of excitonic radiative lifetimes fill a key gap in this debate, showing that pristine hexagonal Ge remains intrinsically weakly emissive, while Si alloying only modestly shortens the lifetime and ...
Michele Re Fiorentin, Michele Amato, Maurizia Palummo   +2 more
wiley   +1 more source