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Using terahertz photoelasticity method:
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One of the main drawback of optical photoelasticimetry is that it is only doable for quasi-2D transparent materials. However, very recently, it has been shown that photoelasticimetry can also be performed using polarised teraHertz waves. These waves can go through optically non-transparent material and could permit to image stresses in 3D. [In this section](https://git-xen.lmgc.univ-montp2.fr/PhotoElasticity/Main/wikis/terahertz) we give the main principles of this method and how to implement it. Still, this is a cutting edge method much more complicated to use than any other presented in this wiki.
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One of the main drawback of optical photoelasticimetry is that it is only doable for quasi-2D transparent materials. However, very recently, it has been shown that photoelasticimetry can also be performed using polarised [teraHertz waves](https://en.wikipedia.org/wiki/Terahertz_radiation). These waves can go through optically non-transparent materials and could permit to image stresses in 3D. [In this section](https://git-xen.lmgc.univ-montp2.fr/PhotoElasticity/Main/wikis/terahertz) we give the main principles of this method and how to implement it. Still, this is cutting edge research so processes presented here are much more complicated to use than any other presented in this wiki.
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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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