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Dealing with speckle effects in self-mixing interferometry measurements

Autor
Atashkhooei, R.; Royo, S.; Azcona, F. J.
Tipus d'activitat
Article en revista
Revista
IEEE sensors journal
Data de publicació
2013-05
Volum
13
Número
5
Pàgina inicial
1641
Pàgina final
1647
DOI
https://doi.org/10.1109/JSEN.2013.2240156 Obrir en finestra nova
Projecte finançador
DPI2011-25525 - nuevo sensor interferometrico compacto para aplicaciones de metrologia sin contacto de alta resolucion
Repositori
http://hdl.handle.net/2117/20480 Obrir en finestra nova
Resum
An analysis of speckle effects and the techniques to overcome them in self-mixing interferometry signals is presented. We characterize the effect of surface roughness and laser spot size on the speckle modulation of the signal, and then propose two simple experimental approaches to overcome the amplitude fading induced by the speckle effect. Unlike the techniques proposed until now, our first approach uses an adaptive optical element in the form of a voltage-programmable liquid lens, which adapt...
Citació
Atashkhooei, R.; Royo, S.; Azcona, F. Dealing with speckle effects in self-mixing interferometry measurements. "IEEE sensors journal", Maig 2013, vol. 13, núm. 5, p. 1641-1647.
Paraules clau
Displacement Measurement, Interferometry Self-mixing, Speckle Effect
Grup de recerca
CD6 - Centre de Desenvolupament de Sensors, Instrumentació i Sistemes
GREO - Grup de Recerca en Enginyeria Òptica

Participants

  • Atashkhooei, Reza  (autor)
  • Royo Royo, Santiago  (autor)
  • Azcona Guerrero, Francisco Javier  (autor)