Inclination shift signal: thickness or index measurement in transparent media by transmission of generally astigmatic Gaussian beams

The focus error signal is a widespread optical technique that harnesses the shape of a simply astigmatic Gaussian beam to produce an output signal with a well-defined linear range used for many different applications. However, general astigmatic Gaussian beams have not been extensively used for meas...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Aguilar, Andres, Torga, Jorge
Formato: Artículo publisherVersion
Lenguaje:Inglés
Publicado: 2020
Materias:
General astigmatism
Thickness measurement
Index measurement
Low-cost
UTN
FRD
Acceso en línea:http://hdl.handle.net/20.500.12272/4634
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-4634
record_format dspace
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
topic General astigmatism
Thickness measurement
Index measurement
Low-cost
UTN
FRD
spellingShingle General astigmatism
Thickness measurement
Index measurement
Low-cost
UTN
FRD
Aguilar, Andres
Torga, Jorge
Inclination shift signal: thickness or index measurement in transparent media by transmission of generally astigmatic Gaussian beams
topic_facet General astigmatism
Thickness measurement
Index measurement
Low-cost
UTN
FRD
description The focus error signal is a widespread optical technique that harnesses the shape of a simply astigmatic Gaussian beam to produce an output signal with a well-defined linear range used for many different applications. However, general astigmatic Gaussian beams have not been extensively used for measuring purposes even though they have been known for decades. These beams have interesting properties which were used in this work as a mean to measure a change in the optical path and recover sample information. In this text, the formulae presented by E. Kochkina to represent generally astigmatic Gaussian beams are summarized, the principles of the proposed technique are set forth and two experimental results are presented as a validation of the proposal. A brief introduction to a different approach that enables the setup to perform simultaneous measurements of the thickness and refractive index is also given.
format Artículo
publisherVersion
author Aguilar, Andres
Torga, Jorge
author_facet Aguilar, Andres
Torga, Jorge
author_sort Aguilar, Andres
title Inclination shift signal: thickness or index measurement in transparent media by transmission of generally astigmatic Gaussian beams
title_short Inclination shift signal: thickness or index measurement in transparent media by transmission of generally astigmatic Gaussian beams
title_full Inclination shift signal: thickness or index measurement in transparent media by transmission of generally astigmatic Gaussian beams
title_fullStr Inclination shift signal: thickness or index measurement in transparent media by transmission of generally astigmatic Gaussian beams
title_full_unstemmed Inclination shift signal: thickness or index measurement in transparent media by transmission of generally astigmatic Gaussian beams
title_sort inclination shift signal: thickness or index measurement in transparent media by transmission of generally astigmatic gaussian beams
publishDate 2020
url http://hdl.handle.net/20.500.12272/4634
work_keys_str_mv AT aguilarandres inclinationshiftsignalthicknessorindexmeasurementintransparentmediabytransmissionofgenerallyastigmaticgaussianbeams
AT torgajorge inclinationshiftsignalthicknessorindexmeasurementintransparentmediabytransmissionofgenerallyastigmaticgaussianbeams
bdutipo_str Repositorios
_version_ 1764820552008073218

Ejemplares similares