Results 1 to 10 of about 1,179,126 (182)

Deep Trench Isolation and Inverted Pyramid Array Structures Used to Enhance Optical Efficiency of Photodiode in CMOS Image Sensor via Simulations [PDF]

open access: yesSensors, 2020
The photodiode in the backside-illuminated CMOS sensor is modeled to analyze the optical performances in a range of wavelengths (300–1100 nm). The effects of changing in the deep trench isolation depth (DTI) and pitch size (d) of the inverted pyramid ...
Chang-Fu Han   +2 more
doaj   +2 more sources

915 nm pumping kilowatt fiber oscillator with high optical-to-optical efficiency [PDF]

open access: yesScientific Reports
We demonstrate an all-fiber oscillator with high optical-to-optical efficiency using laser diodes working at 915nm as the pump sources to reduce the demand for thermal management.
Xin Chen   +4 more
doaj   +2 more sources

Synthesis, characterization and optical studies of a novel diorganotin(IV) anthracene-9-carboxylate complex as a precursor for the fabrication of an organic light-emitting diode [PDF]

open access: yesشیمی کاربردی روز, 2023
A novel diorganotin(IV) complex, [(SnMe2)2(C15H9O2)(OCH3)(O)]2, with high optical properties was synthesized by an efficient method and fully characterized by elemental analysis and 1H, 119Sn NMR, IR and UV spectroscopies.
Ezzatollah Najafi   +2 more
doaj   +1 more source

Angular momentum holography via a minimalist metasurface for optical nested encryption

open access: yesLight: Science & Applications, 2023
Metasurfaces can perform high-performance multi-functional integration by manipulating the abundant physical dimensions of light, demonstrating great potential in high-capacity information technologies. The orbital angular momentum (OAM) and spin angular
Hui Yang   +9 more
doaj   +1 more source

Evaluation and Characterization of the Influence of Solar Position Algorithm on the Performance of Parabolic Trough Solar System

open access: yesApplied Sciences, 2023
For the open loop control system based on the solar position algorithm (SPA), without sensor correction, the error of SPA will bring the tracking error directly to decrease the efficiency of the solar system.
Bowen Liu, Chenggang Zong, Weidong Huang
doaj   +1 more source

Efficient Optical Quantum State Engineering [PDF]

open access: yesPhysical Review Letters, 2009
4 pages, 4 ...
McCusker, Kevin T., Kwiat, Paul G.
openaire   +3 more sources

Resonant Metasurfaces for Spectroscopic Detection: Physics and Biomedical Applications

open access: yesAdvanced Devices & Instrumentation, 2022
Metasurfaces are ultrathin metamaterials consisting of subwavelength scatterers (e.g., meta-atoms) arranged in a specific sequence that generates low radiation losses and fantastic optical resonances. According to the electromagnetic response properties,
Cuiping Liang   +4 more
doaj   +1 more source

High Light Efficiency Spectral Polarization Imaging Method Based on Mach–Zehnder Structured Liquid Crystal Tunable Filters and Variable Retarders

open access: yesPhotonics, 2023
Liquid crystal tunable filters (LCTFs) are extensively used in hyperspectral imaging systems to obtain spectral information of target scenes. However, a typical LCTF can only filter linearly polarized light, greatly reducing the transmittance of the ...
Lixin Chen   +3 more
doaj   +1 more source

Elliptical-Shaped Fresnel Lens Design through Gaussian Source Distribution

open access: yesEnergies, 2022
A novel three-dimensional elliptical-shaped Fresnel lens (ESFL) analytical model is presented to evaluate and maximize the solar energy concentration of Fresnel-lens-based solar concentrators.
Dário Garcia   +6 more
doaj   +1 more source

Efficiencies of quantum optical detectors [PDF]

open access: yesPhysical Review A, 2014
We propose a definition for the efficiency that can be universally applied to all classes of quantum optical detectors. This definition is based on the maximum amount of optical loss that a physically plausible device can experience while still replicating the properties of a given detector.
Hogg, Daniel   +2 more
openaire   +2 more sources

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