Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Single speckle image analysis for monitoring the hardening kinetics of glass ionomer cements

Not Accessible

Your library or personal account may give you access

Abstract

In this paper, we monitor the setting reaction of commercial glass ionomer cements using a laser speckle technique and adopting a spatial approach in the analysis of recorded speckle images. Experimental results showed that spatial contrast and speckle grain size increased as two studied cements underwent their setting reactions. After combining two geometrical configurations to measure the intensities of backscattered and transmitted light, we concluded that the increase in speckle grain size was caused by an increase in size of the scattering centers, since cement components aggregate and hence transition from a Rayleigh to a Mie scattering regime. Finally, two main phases were distinguished in the hardening process, as reported in the literature; however, the technique we propose has the advantage of easily identifying these two phases. The analysis of a single speckle image offers multiple advantages over the temporal analysis of a series of speckle images, in particular due to the low number of images recorded and a far shorter image processing time.

© 2020 Optical Society of America

Full Article  |  PDF Article
More Like This
Monitoring the curing kinetics of glass ionomer cements by modeling the temporal correlation of speckle images

Aicha El Cheikh, Fabrice Pellen, Bernard Le Jeune, Guy Le Brun, and Marie Abboud
Appl. Opt. 58(28) 7878-7883 (2019)

Interpretation of the bacterial growth process based on the analysis of the speckle field generated by calibrated scattering media

Hadi Loutfi, Fabrice Pellen, Bernard Le Jeune, Roger Lteif, Mireille Kallassy, Guy Le Brun, and Marie Abboud
Opt. Express 28(19) 28648-28655 (2020)

Characterization of Bacillus thuringiensis parasporal crystals using laser speckle technique: effect of crystal concentration and dimension

Rana Nassif, Christelle Abou Nader, Jihane Rahbany, Fabrice Pellen, Dominique Salameh, Roger Lteif, Guy Le Brun, Bernard Le Jeune, Mireille Kallassy Awad, and Marie Abboud
Appl. Opt. 54(12) 3725-3731 (2015)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (3)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved