method-image.md

 Imaging photoelastic samples
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+In the [previous section](https://git-xen.lmgc.univ-montp2.fr/PhotoElasticity/Main/wikis/method-make) we explain the different ways to make a photoelastic sample. In this section we will show you the different ways to image it considering the optic, dynamic and geometric constraints you can have, and considering want you want to measure.
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+Using different wavelengths:
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+[here](https://git-xen.lmgc.univ-montp2.fr/PhotoElasticity/Main/wikis/wavelength-imaging)
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+![Capture_du_2019-01-09_13-05-39.rotated](uploads/b0439f1ea9f2fad899f679d5b2a50d0f/Capture_du_2019-01-09_13-05-39.rotated.png)
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+Picture extracted from [this article](https://aip.scitation.org/doi/abs/10.1063/1.4983049). Red light is used to localized the particles while green one is used to measure the photoelastic response.
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+Using transmission photoelasticity method:
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+[here](https://git-xen.lmgc.univ-montp2.fr/PhotoElasticity/Main/wikis/transmission-photoelasticity)
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+![Capture_du_2019-01-09_13-11-21](uploads/f86accad9f20032a02090f1637a79207/Capture_du_2019-01-09_13-11-21.png)
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+Using reflection photoelasticity method:
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+[here](https://git-xen.lmgc.univ-montp2.fr/PhotoElasticity/Main/wikis/reflection-photoelasticity)
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+Using terahertz photoelasticity method:
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+[here](https://git-xen.lmgc.univ-montp2.fr/PhotoElasticity/Main/wikis/terahertz)
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+![Capture_du_2019-01-09_13-10-53](uploads/04b04f314a1659bc20bafccd689bccfc/Capture_du_2019-01-09_13-10-53.png)
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 Using polarizers properly:
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