Results 11 to 20 of about 5,558,330 (321)

Optical-component-only adaptive optics

open access: yesOptics Letters, 2021
This Letter introduces a technique for performing binary adaptive optics, which is carried out by optical components only, without the help of any electronic or optoelectronic device. In this technique, the interferogram produced by a point diffraction interferometer modulates a light-driven crystal. The modulated light-driven crystal may produce pupil-
Pérez Cagigal, Manuel   +4 more
openaire   +3 more sources

Simultaneously improved dielectric, optical and conductivity properties of SrLa1−xNdxLiTeO6 double perovskites

open access: yesMaterials Research Express, 2020
In this study, SrLa _1-x Nd _x LiTeO _6 ( x  = 0.00, 0.25, 0.50, 0.75, 1.00) compounds were prepared using the solid-state method, and their structural, optical, dielectric and conductivity properties were investigated.
M Z M Halizan, Z Mohamed, A K Yahya
doaj   +1 more source

Combining Sentinel-1 and Landsat 8 Does Not Improve Classification Accuracy of Tropical Selective Logging

open access: yesRemote Sensing, 2022
Tropical forests play a key role in the global carbon and hydrological cycles, maintaining biological diversity, slowing climate change, and supporting the global economy and local livelihoods.
Matthew G. Hethcoat   +4 more
doaj   +1 more source

Optical fibre nanowire technology and applications [PDF]

open access: yes, 2008
A review of optical fibre nanowires and their applications is ...
Brambilla, G.
core   +1 more source

The Dark Side of ROTSE-III Prompt GRB Observations [PDF]

open access: yes, 2007
We present several cases of optical observations during gamma-ray bursts (GRBs) which resulted in prompt limits but no detection of optical emission.
Aharonian, F.   +24 more
core   +8 more sources

Polymer Backbone Stabilized Methylammonium Lead Bromide Perovskite Nano Islands

open access: yesNanomaterials, 2023
Organic-inorganic hybrid perovskite materials continue to attract significant interest due to their optoelectronic application. However, the degradation phenomenon associated with hybrid structures remains a challenging aspect of commercialization.
Chinna Bathula   +7 more
doaj   +1 more source

Nanomaterials towards Biosensing of Alzheimer’s Disease Biomarkers

open access: yesNanomaterials, 2019
Alzheimer’s disease (AD) is an incurable and highly debilitating condition characterized by the progressive degeneration and/or death of nerve cells, which leads to manifestation of disabilities in cognitive functioning.
Pedro Carneiro   +2 more
doaj   +1 more source

An Investigation on the Damping Ratio of Marine Oil Slicks in Synthetic Aperture Radar Imagery

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The damping ratio has recently been used to indicate the relative internal oil thickness within oil slicks observed in synthetic aperture radar (SAR) imagery.
Cornelius Quigley   +2 more
doaj   +1 more source

Application of Integrated Optical Electric-Field Sensor on the Measurements of Transient Voltages in AC High-Voltage Power Grids

open access: yesApplied Sciences, 2019
Transient voltages in the power grid are the key for the fault analysis of a power grid, optimized insulation design, and the standardization of the high-voltage testing method.
Shijun Xie   +8 more
doaj   +1 more source

Time Shared Optical Network (TSON): A Programmable Network Edge Solution for Multi-Access Support

open access: yesApplied Sciences, 2019
The time shared optical network (TSON) has been proposed as a dynamic optical transport network solution to provide high bandwidth and low latency connectivity in support of 5G technology and beyond.
Arash Farhadi Beldachi   +3 more
doaj   +1 more source

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