Photoelasticity in Optical Media from Crystals to Amorphous Materials
A special issue of Crystals (ISSN 2073-4352).
Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 6355
Special Issue Editors
Interests: crystals; photoelasticity; nanomaterials; scintillators; quality control
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Photoelasticity is a discipline allowing the analysis of crystal and general transparent media which was developed from crystallography and elasto-optic sciences. Its strength is due to the capability of photoelastic techniques to perform noninvasive analysis, aiming to conduct a qualitative and quantitative assessment of crystals and transparent media conditions. Photoelasticity directly measures the internal structural condition and stress state of the transparent media. Accordingly, photoelasticity is a powerful tool for quality control in a fast non-destructive way.
Pioneering studies have been dedicated to isotropic materials, like glasses and plastic, and have been applied for stress distribution detection in mechanical structures or to prevent breaking in stressed transparent samples. Currently, the theoretic advances on elasto-optics and photoelasticity allow to study the stress state and defectiveness in anisotropic crystals. The present Special Issue aims to report on the progress made in photoelasticity, improving the theory, crystals knowledge, structural condition and defectiveness measurement models and systems; as well as enabling to study the relation between the crystal state and optic properties. In fact, photoelasticity is a fundamental tool, not only in mechanics, but also in disciplines like photonics and scintillating materials since the structural state indeed affects the optical properties of each material.
Recently, a number of optical materials for several applications have different structures from pure crystalline to polycrystalline and amorphous structures with a certain degree of crystallinity. Since photoelasticity is a universal technique covering all these structures, this Special Issue extends beyond the pure crystalline structures to glasses-like materials. The need for local assessment and taking into account that requirements for photoelastic media dimensions can go to the millimetric scale, therefore contributions exploring new techniques with a large range of resolution down to the micrometric are welcome. This will also pave the way for the design of a new kind of polariscopes. Photelasticity is consequently very relevant for the quality control and investigation of transparent media from both a theoretical and technological point of view. Accordingly, the present Special Issue welcomes papers that represent an effort to develop the theory, the methodology and the application fields of photoelasticity. Original papers, communications and reviews are encouraged to be submitted to the Special Issue, with a particular focus not only on the photoelastic theory, but also on transparent media studies and characterization, innovative applications and photoelastic techniques.
Prof. Dr. Daniele Rinaldi
Dr. Luigi Montalto
Guest Editors
Manuscript Submission Information
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Keywords
- photoelasticity
- transparent media
- internal stress
- crystal defects
- quality control
- scintillators
- photonics
- polariscope
- conoscopy
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