Characterization of the photoelastic dispersion coefficient using polarized digital holography
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Journal of the Optical Society of America A
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The photoelastic dispersion coefficient represents the relationship between stress and the differences in refractive indices in a birefringent material. However, determining the coefficient using photoelasticity is challenging,
as it is difficult to determine the refractive indices within photoelastic samples that are under tension. Here we
present, for the first time, to our knowledge, the use of polarized digital holography to investigate the wavelength
dependence of the dispersion coefficient in a photoelastic material. A digital method is proposed to analyze and
correlate the differences in mean external stress with differences in mean phase. The results confirm the wavelength
dependence of the dispersion coefficient, with an accuracy improvement of 25% compared to other photoelasticity
methods.
Como referenciar
SILVA, SIDNEY L. da; PRADO, FELIPE M.; TOFFOLI, DANIEL J.; WETTER, NIKLAUS U. Characterization of the photoelastic dispersion coefficient using polarized digital holography. Journal of the Optical Society of America A, v. 40, n. 4, p. C108-C114, 2023. DOI: 10.1364/JOSAA.482543. Disponível em: http://repositorio.ipen.br/handle/123456789/34076. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.