Search

Your search keyword '"Abruña, Ernesto"' showing total 6 results
Start Over Author "Abruña, Ernesto"
6 results on '"Abruña, Ernesto"'

3. In-Situ Metrology for Adaptive X-Ray Optics with an Array of Interferometric Absolute Distance Measuring Sensors.

Author

Badami, Vivek G., Abruña, Ernesto, Lei Huang, and Idir, Mourad

Subjects
*OPTICAL mirrors, *ADAPTIVE optics, *LIGHT sources, *INTERFEROMETRY, *INTERFEROMETERS
Abstract

Adaptive x-ray mirrors are viewed as the main path to meeting the science and usability needs of the next generation of x-ray light sources. Currently these mirrors operate open loop with intermittent feedback from invasive sensors that measure the beam quality. We outline a novel design for in situ metrology of the shape of these mirrors using an array of interferometric sensors. We describe a proof-of-principle demonstration showing sub-nm agreement between shape changes measured by this technique to simultaneous measurements by a large-aperture 18” Fizeau interferometer. [ABSTRACT FROM AUTHOR]

Published
2018
Full Text
View/download PDF

6. Multiwavelength-interferometry-based sensor redefines precision position metrology.

Author

ABRUÑA, ERNESTO

Subjects
*INTERFEROMETRY, *OPTICAL sensors, *HOMODYNE detection, *STABILITY (Mechanics), *METROLOGY
Abstract

The article discusses the introduction of a fiber-based optical sensor system known as the ZPS system which provides the absolute position. Topics mention including the utilization of the application which requires the high quality of measurement, combining the types of interferometry and uncertainties of the sensor system.

Published
2017

Catalog

Books, media, physical & digital resources
See catalog results