Results 81 to 90 of about 1,828 (206)

On the Optimal Design of Doppler Scatterometers

Remote Sensing, 2018
Pencil-beam Doppler scatterometers are a promising remote sensing tool for measuring ocean vector winds and currents from space. While several point designs exist in the literature, these designs have been constrained by the hardware they inherited, and ...
Ernesto Rodriguez
doaj   +1 more source

Fourier imaging for nanophotonics

Nanophotonics, Volume 13, Issue 6, Page 841-858, March 2024.
Abstract Standard optical characterization and spectroscopy techniques rely on the measurement of specular reflection, transmission, or emission at normal incidence. Although the usefulness of these methods is without question, they do not provide information on the angular dependence of the scattered light and, therefore, miss crucial insights on the ...
Sébastien Cueff, Lotfi Berguiga, Hai Son Nguyen   +2 more
wiley   +1 more source

Precise and rapid distance measurements by scatterometry

Optics Express, 2012
We found that the distances between isolated scatterers with similar columnar shapes could be measured by taking a single Fourier transform of their diffraction intensity. If the scatterers have different shapes, the distances between similar shapes can be selected from the distances between all the shapes. The distance from a specific scatterer can be
Tetsuya, Hoshino, Toyohiko, Yatagai, Masahide, Itoh   +2 more
openaire   +2 more sources

UV source for solar cell processing and scatterometry

Gas-filled hollow core fibers are a promising and unique platform for generation of ultrafast and wavelength tunable UV light. We present recent advances from our lab focused towards two vastly different industrial applications: Laser processing of solar
Canulescu, Stela, Moltke, Asbjørn, I Miakota, Denys, Davidsen, Rasmus Schmidt, R Smith, Callum, Jektvik, Camilla D, Bang, Ole   +6 more
core   +1 more source

Machine-learning based inference of critical dimensions of gate-all-around transistors from reflectance spectroscopy measurements

Machine Learning. Engineering
This paper presents a method for scatterometry-based inspection of large area gate-all-around (GAA) transistor arrays using a machine learning (ML) based inference of the underlying critical dimensions (CDs). A surrogate ML model was trained on a library
James Wang, Dragan Djurdjanovic
doaj   +1 more source

Active-passive microwave scattering in the Antarctica wind-glazed region: an analog for icy moons of Saturn [PDF]

The Cryosphere
Microwave radiometry and scatterometry, two complementary modes of sensing the composition and structure of the upper meters to hundreds of meters of the subsurface, are often difficult to reconcile, both on the Earth cryosphere and on icy moons of ...
L. E. Bonnefoy, L. E. Bonnefoy, C. Prigent, C. Prigent, G. Picard, C. Soriot, C. Soriot, A. Le Gall, A. Le Gall, L. Kilic, L. Kilic, C. Jimenez, C. Jimenez   +12 more
doaj   +1 more source

GNSS-R Altimetry Performance Analysis for the GEROS Experiment on Board the International Space Station

Sensors, 2017
The GEROS-ISS (GNSS rEflectometry, Radio Occultation and Scatterometry onboard International Space Station) is an innovative experiment for climate research, proposed in 2011 within a call of the European Space Agency (ESA).
Adriano Camps, Hyuk Park, Ivan Sekulic, Juan Manuel Rius   +3 more
doaj   +1 more source

Evaluation of L-Band SMAP Scatterometer Tropical Cyclone Wind Retrieval Using UHR σ° Measurements

Remote Sensing
Tropical cyclones pose a significant hazard to coastal populations and shipping infrastructure. By helping provide timely warnings, ocean scatterometers can mitigate this threat with ocean wind estimates.
Benjamin J. Fogg, David G. Long
doaj   +1 more source

In-line etching process control using dynamic scatterometry [PDF]

, 2007
International audienceIn-line process control in microelectronics manufacturing requires real-time and non-invasive monitoring techniques. Among the different metrology techniques, scatterometry, based on the analysis of ellipsometric signatures (i.e ...
Soulan, S., Besacier, M., Leveder, T., Schiavone, P., Sébastien Soulan, Patrick Schiavone, Tanguy Leveder, Maxime Besacier   +7 more
core   +1 more source

Global optimization in inverse problem of scatterometry [PDF]

, 2009
International audienceIn the current work, we consider the inverse problem in scatterometry which consists in determining the feature shape from an experimental ellipsometric signature.
Schiavone, Patrick, Hazart, Jérôme, Afraites, Lekbir   +2 more
core   +2 more sources