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Fast scanner with position monitor forlargeopticaldelays
(2001-11-01)
Wepresent a new fastscansystemthatemploys a stepper motor used in a single steposcillatingmode and a position monitor devicebasedon a diode laser. Thesetupusedgeneratesdelays as large as 105 ps at 10 Hz, with 100% dutycycle. ...
Application of a long-rangesweptsource optical coherence tomography-based scheme for dimensional characterization of multilayer transparent objects
(2017-08-18)
This work presents the use of a recently develop edinter ferometric system based on the swept source optical coherence tomography (SS-OCT) technique, which allows the characterization of transparent and semitransparent ...
Spectral sensor resolution measurement improvements by temporal analysis
(IEEE Xplore, 2017-12-18)
In this work we present time domain interferometry (TDI) and spectral domain interferometry (SDI) techniques applied to a fiber optic Fizeau interferometer sensor. This class of sensor is capable of measuring parameters ...
Wide band interferometryforthicknessmeasurement
(2003)
In thisworkwepresentthe concept of wide band interferometry
as opposed to white-light interferometry to introduce a thickness
measurementmethodthatgainsprecisionwhenthebandwidthisreduced to
anadequatecompromise in order ...
Simple method for thickness measurement in opaque samples with a Michelson-Sagnac interferometer
(2008-04-24)
We present in this work a method to measure thicknesses of opaque samples. The technique combines the use of low coherence interferometry with a Michelson-Sagnac configuration. This ring set-up let us to measure both faces ...