Results 11 to 20 of about 849,538 (300)
Modeling Light‐Extraction Characteristics of Packaged Light‐Emitting Diodes [PDF]
VLSI Design, 1998 We employ a Monte Carlo ray‐tracing technique to model light‐extraction characteristics of light‐emitting diodes. By relaxing restrictive assumptions on photon traversal history, our method improves upon available analytical models for estimating light‐extraction efficiencies from bare LED chips, and enhances modeling capabilities by realistically ...
Ting, D. Z.-Y., McGill, T. C.
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Smooth light extraction in lighting optical fibre
SPIE Proceedings, 2011 Smooth light extraction in lighting optical ...
Fernandez-Balbuena, A. A. +4 more
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Single-step-fabricated disordered metasurfaces for enhanced light extraction from LEDs. [PDF]
Light Sci Appl, 2021 While total internal reflection (TIR) lays the foundation for many important applications, foremost fibre optics that revolutionised information technologies, it is undesirable in some other applications such as light-emitting diodes (LEDs), which are a ...
Mao P +8 more
europepmc +2 more sources
Nanoparticle meta-grid for enhanced light extraction from light-emitting devices. [PDF]
Light Sci Appl, 2020 Based on a developed theory, we show that introducing a meta-grid of sub-wavelength-sized plasmonic nanoparticles (NPs) into existing semiconductor light-emitting-devices (LEDs) can lead to enhanced transmission of light across the LED-chip/encapsulant ...
Sikdar D, Pendry JB, Kornyshev AA.
europepmc +2 more sources
IEEE Photonics Journal, 2022 Deep-ultraviolet (DUV) light emitting diodes (LEDs) show great potential in a wide range of applications, but suffer from poor external quantum efficiencies (EQEs) when compared to visible LEDs, due to their exceptionally poor light extraction efficiency
Bryan Melanson +2 more
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Journal of Information Display, 2023 In this paper, we propose the application of an optical property-enhancement film that complements the angular dependence and total reflection of top-emitting organic light-emitting diodes (TEOLEDs). The optical property-enhancement film is composed of a
Baeksang Sung +7 more
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Micromachines, 2022 Micro-light-emitting diodes (micro-LEDs) have been regarded as the important next-generation display technology, and a comprehensive and reliable modeling method for the design and optimization of characteristics of the micro-LED is of great use. In this
Chang-Cheng Lee +6 more
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Opto-Electronic Advances, 2021 We report a feasible method to realize tunable surface plasmon-polariton (SPP) resonance in organic light-emitting devices (OLEDs) by employing corrugated Ag-Al alloy electrodes.
Xue-Mei Wen +7 more
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Separation of Light and Middle Lanthanides Using Multistage Extraction with Diglycolamide Extractant
Analytical Sciences, 2021 We investigated the chemical behavior of lanthanides (Ln) by multistage extraction. Using 10 aqueous phases with Ln and 3 organic phases, we drew the breakthrough curves for light and middle Ln. Our study reveals that the limit of metal extraction depends on their D values and the metal concentration employed in experiments.
MATSUTANI, Takafumi +2 more
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Enhanced light extraction by photonic quasi-crystals in GaN blue LEDs [PDF]
, 2009 The far-field profile of photonic quasi-crystal patterned and unpatterned LEDs, fabricated from commercial epitaxial substrates by electron beam lithography, has been measured prior to lapping and dicing. Emission enhancements reach a maximum of 62%, and
Shields, Philip A. +8 more
core +1 more source