high-power light-emitting diodes
Wide-field optical spectroscopy system integrating reflectance and spatial frequency domain imaging to measure attenuation-corrected intrinsic tissue fluorescence in radical prostatectomy specimens
... same light source consisting of seven high-power light emitting diodes (LED) centered at 405, 435, 475, 515, 550, 570 and 630 nm (79–536 mW, Spectra X model, Lumencor, USA) ...
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Photostimulation for in vitro optogenetics with high power blue organic light emitting diodes
... to light, is widely used in neuroscience to modulate the electrical excitability of ...neurons, light wavelength and power density must fit with the expression levels and biophysical properties of ...
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Enhancement of light output power of GaN based light emitting diodes with photonic quasi crystal patterned on p GaN surface and n side sidewall roughing
... of high-brightness light extraction of GaN-based nitride light-emitting diodes (LEDs) is dominated on both material techniques such as metal organic chemical vapor deposition (MOCVD) ...
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InAs/GaSb superlattice interband cascade light emitting diodes with high output power and high wall plug efficiency
... In this work, 2-stage and 5-stage mid-infrared superlattice interband cascade light emitting diodes (ICLEDs) were fabricated and studied at different temperatures.. The ICLEDs were comp[r] ...
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Light emitting diodes enhanced by localized surface plasmon resonance
... spectral power tunability over fluorescent and incandescent light sources have propelled the com- mercialization of solid-state lighting devices containing semiconductors as the light emitters ...
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Enhanced optical output power of blue light emitting diodes with quasi aligned gold nanoparticles
... for light-emitting diodes (LEDs), which operate in the blue and green wavelength ...the light extraction efficiency is lim- ited by several factors including the high refractive index ...
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Red Emitting Caal3(PO4)3F2:Eu3+ Phosphor for White Light Emitting Diodes
... state light sources will eventually replace existing lighting technologies [1, ...Lighting emitting diodes (WLEDs) have attracted great interests for general illumination because LEDs have advantages ...
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The influence of type I and type II triplet multiple quantum well structure on white organic light emitting diodes
... demonstrate high-efficient white organic light-emitting diodes (WOLEDs) based on triplet multiple quantum well (MQW) structure and focus on the influence on WOLEDs through employing different ...
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Light emitting diodes and lasers for high-speed underwater optical communications
... emitter, emitting power equally in all directions, rather than for example a Lambertian ...optical power, at a wavelength of 520𝑛𝑚 is assumed, and the specifications of the SiPM used in our ...
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OCIS codes: ( ) Light-Emitting Diodes; ( ) Optoelectronics.
... electrical power to luminous flux of white light is measured in terms of lumens (lm) per watt (W), where the “lumen” is the unit of luminous flux (optical power as perceived by a ...white ...
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Origin of power fluctuations in GaN resonant cavity light emitting diodes
... wells consisting of 3-nm-thick wells and 10-nm-thick barriers. The peak wavelength of emission of the quantum wells was at 490 nm. The top p-doped GaN layer was coated with Pd/Ag/Ni/Au (3/100/30/300 nm thick) to create a ...
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Enhanced performance of nitride based ultraviolet vertical injection light emitting diodes by non insulation current blocking layer and textured surface
... of high-power nitride-based light-emitting diodes (LEDs) has been rising since the last 20 years, and they are extensively used in outdoor displays, vehicle light- ings, and ...
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Automated color sensor system using LDR and RGB LEDS controlled by Arduino
... Color sensor systems evolved and reached a high level of technologies in detecting several colors, mostly in robotics. Many factors can affect the success of this device like efficiency. It is so important when ...
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Fabrication and characterization of organic light emitting diodes for display applications
... Inorganic light emitting diodes are an important background technology to this ...non-coherent light sources that are capable of producing continuous and efficient illumination from a simple ...
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Recent advances in light outcoupling from white organic light emitting diodes
... redirecting light traveling in the plane of the ...guiding light in the plane and extracting the guided light via out-of-plane reflection by the special geometric shape of the ITO ...
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Progress in microalgae cultivation photobioreactors and applications in wastewater treatment: A review
... left), has no internal structure, thus the fluid flow is driven all by bubbles, which are released by the air sparer at the bottom. Normally these types of cylindrical vessels with a height greater than twice the ...
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Uncertainty of spectral mismatch factor for Spot White (LEDS) and Compact Fluorescent Lamps
... spectral power distribution SPDs at each wavelength over the visible region of three of spot white light emitting diode (LEDs) lamps as the following: NIS- LED-1, NIS- LED -2, and NIS- LED -3 ...
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Use of confocal and multiphoton microscopy for the evaluation of micro-optical components and emitters
... aluminium coated plane mirror. Initially the conventional 488nm illumination laser beam was “parked” in the centre of the image and without the microscope objective this beam was overlapped with the through illumination ...
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Emerging Transparent Conducting Electrodes for Organic Light Emitting Diodes
... of high quality ITO is a low throughput process and requires elevated ...requires high temperature annealing to achieve a good conductivity ...at high temperatures, which means an increased substrate ...
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WATER DISINFECTION USING ULTRAVIOLET-A AND VISIBLE LIGHT-EMITTING DIODES
... termed high-intensity narrow-spectrum (HINS) light has been recently ...HINS light of 405nm stimulates endogenous microbial porphyrin molecules to produce oxidizing reactive oxygen species (ROS), ...
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