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Proceedings Article

Analysis of interferograms of refractive index inhomogeneities produced in optical materials

[+] Author Affiliations
N. Tarjányi

Univ. of Žilina (Slovakia)

Proc. SPIE 9441, 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 944116 (December 5, 2014); doi:10.1117/12.2085652
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From Conference Volume 9441

  • 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics
  • Agnieszka Popiolek-Masajada; Waclaw Urbanczyk
  • Jelenia Gora, Poland | September 09, 2014

abstract

Optical homogeneity of materials intended for optical applications is one of the criterions which decide on an appropriate application method for the material. The existence of a refractive index inhomogeneity inside a material may disqualify it from utilization or by contrary, provide an advantage. For observation of a refractive index inhomogeneity, even a weak one, it is convenient to use any of interferometric methods. They are very sensitive and provide information on spatial distribution of the refractive index, immediately. One can use them also in case when the inhomogeneity evolves in time, usually due to action of some external fields. Then, the stream of interferograms provides a dynamic evolution of a spatial distribution of the inhomogeneity. In the contribution, there are presented results of the analysis of interferograms obtained by observing the creation of a refractive index inhomogeneity due to illumination of thin layers of a polyvinyl-alcohol/acrylamide photopolymer and a plate of photorefractive crystal, lithium niobate, by light and a refractive index inhomogeneity originated at the boundary of two layers of polydimethylsiloxane. The obtained dependences can be used for studying of the mechanisms responsible for the inhomogeneity creation, designing various technical applications or for diagnostics of fabricated components. © (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

N. Tarjányi
" Analysis of interferograms of refractive index inhomogeneities produced in optical materials ", Proc. SPIE 9441, 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 944116 (December 5, 2014); doi:10.1117/12.2085652; http://dx.doi.org/10.1117/12.2085652


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