Results 31 to 40 of about 1,828 (206)

A low-cost, simple optical setup for a fast scatterometry surface roughness measurements with nanometric precision [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2020
We present a prototype of a simple, low-cost setup for a fast scatterometric surface texture measurements. We used a total integrated scatter method (TIS) with a semiconductor laser (λ =  638 nm) and a Si photodiode.
D. Kucharski, H. Zdunek
doaj   +1 more source

Satellite Remote Sensing of the Greenland Ice Sheet Ablation Zone: A Review

open access: yesRemote Sensing, 2019
The Greenland Ice Sheet is now the largest land ice contributor to global sea level rise, largely driven by increased surface meltwater runoff from the ablation zone, i.e., areas of the ice sheet where annual mass losses exceed gains.
Matthew G. Cooper, Laurence C. Smith
doaj   +1 more source

Spatio-temporal variability of snowmelt across Svalbard during the period 2000–08 derived from QuikSCAT/SeaWinds scatterometry [PDF]

open access: yesPolar Research, 2011
Significant changes in Arctic systems are underway, which are attributed to global warming. An important example is reduction in snow and ice coverage due to intensified melting in many regions.
Jack Kohler   +4 more
doaj   +1 more source

Modelling line edge roughness in periodic line-space structures by Fourier optics to improve scatterometry [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2014
In the present paper, we propose a 2D-Fourier transform method as a simple and efficient algorithm for stochastical and numerical studies to investigate the systematic impacts of line edge roughness on light diffraction pattern of periodic line-space ...
Gross H.   +5 more
doaj   +1 more source

Ka-Band Doppler Scatterometry over a Loop Current Eddy

open access: yesRemote Sensing, 2020
Doppler scatterometry is a promising new technique for the simultaneous measurement of ocean surface currents and winds. These measurements have been recommended by the recent US NRC Decadal Review for NASA as being priority variables for the coming ...
Ernesto Rodríguez   +7 more
doaj   +1 more source

Comparison of far field characterisation of DOEs with a goniometric DUV-scatterometer and a CCD-based system [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2011
We have measured far field diffraction patterns of different diffractive optical elements at an illumination wavelength of 193 nm using a new type of goniometric DUV (deep ultraviolet) scatterometer.
Wurm Matthias   +3 more
doaj   +1 more source

Evaluation of Nearshore QuikSCAT 4.1 and ERA-5 Wind Stress and Wind Stress Curl Fields over Eastern Boundary Currents

open access: yesRemote Sensing, 2022
Fields of coastal wind stress and wind stress curl in the 10–100 km next to the land control the processes of upwelling and downwelling of nutrients and water properties that are vital to highly productive coastal marine ecosystems.
P. Ted Strub, Corinne James
doaj   +1 more source

Applications of Mueller Matrix Polarimetry to Biological and Agricultural Diagnostics: A Review

open access: yesApplied Sciences, 2022
The review contains a systematization of the main approaches to the practical implementation of Mueller matrix polarimetry and the prospects for its application in biology and agriculture. The most typical optical layouts for measuring the Mueller matrix
Dmitry N. Ignatenko   +3 more
doaj   +1 more source

Large-area scatterometry for nanoscale metrology

open access: yesAdvanced Fabrication Technologies for Micro/Nano Optics and Photonics XVI, 2023
Many applications across photonics and semiconductor industries require the fabrication of nanostructures with non-trivial geometries with a precision and reproducibility down to the nanometer scale. Slanted gratings and metamaterials are examples of such designs that have vast applications in Augmented Reality and LiDAR.
Rivas, Jaime Gómez   +3 more
openaire   +1 more source

Improvements of storm surge forecasting in the Gulf of Venice exploiting the potential of satellite data: the ESA DUE eSurge-Venice project

open access: yesEuropean Journal of Remote Sensing, 2017
The northern Adriatic Sea is affected by storm surges, which often cause the flooding in Venice and the surrounding areas. We present the results of the eSurge-Venice project, funded by the European Space Agency (ESA) in the framework of its Data User ...
Francesco De Biasio   +4 more
doaj   +1 more source

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