Results 91 to 100 of about 182,765 (350)
High-Speed Light Signal Transmitters for Optical Communication Based on Ultraviolet Radiation
Applied Sciences, 2020 A light signal transmitter based on ultraviolet radiation is realized on GaN-on-silicon platform. The light signal transmitter with ultra-small active area is fabricated by a double-etching process.
Xin Li +7 more
doaj +1 more source
Advanced Functional Materials, EarlyView.We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang +14 more
wiley +1 more source
A photograph of the light emitting diode (LED) spectrophotometer.
, 2020 A photograph of the light emitting diode (LED) spectrophotometer.
Michael W. Prairie (8374188) +5 more
core +1 more source
Curing efficiency of three light emitting diode units at different curing profiles
Indian Journal of Dental Research, 2016 Context: High-intensity light emitting diode lamps with reduced exposure time to bond orthodontic attachments have been introduced to save the valuable clinical time. Aims: To evaluate the shear bond strength of brackets cured using three different light
Priyanka Verma
doaj +1 more source
Design of passive coolers for light-emitting diode lamps using topology optimisation
International Journal of Heat and Mass Transfer, 2018 Topology optimised designs for passive cooling of light-emitting diode (LED) lamps are investigated through extensive numerical parameter studies. The designs are optimised for either horizontal or vertical orientations and are compared to a lattice-fin ...
Joe Alexandersen +3 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.The polymer wall stabilized dye‐doped liquid crystals (PWLCs) enhance the sensitivity of photoinduced molecular reorientation in dye‐doped LC systems. The PWLC with an invisible polymer wall successfully reduces the threshold intensity and functions as an optical limiter under the incidence of low intensity light laser source.
Junki Yokota +6 more
wiley +1 more source
III-Nitride Multi-Quantum-Well Light Emitting Structures with Selective Carrier Injection
Applied Sciences, 2019 Incorporation into the multi-layered active region of a semiconductor light-emitting structure specially designed intermediate carrier blocking layers (IBLs) allows efficient control over the carrier injection distribution across the structure’s ...
Hussein S. El-Ghoroury +2 more
doaj +1 more source
Chiral Phase Change Nanomaterials
Advanced Functional Materials, EarlyView.This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow +11 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Blue phosphorescent OLEDs remain limited by poor operational stability. Here, a unified analytical framework integrating transient photoluminescence and magneto‐electroluminescence is developed to correlate intrinsic material photophysics with electrically driven degradation.
Hakjun Lee, Bum June Park, Taekyung Kim
wiley +1 more source
Electrohydrodynamic focusing and light propagation in 2-dimensional microfluidic devices for preconcentration of low abundance bioanalytes [PDF]
, 2012 This thesis presents work on electrohydrodynamic focusing (EHDF) and photon transmission to aid the development of species preconcentration and identification.
Piasecki, Tomasz
core