Hybrid immersion-polarization method for measuring birefringence applied to spider silks

Douglas J. Little; Deborah M. Kane

doi:10.1364/OL.36.004098

Hybrid immersion-polarization method for measuring birefringence applied to spider silks

Douglas J. Little^*, Deborah M. Kane

^*Corresponding author for this work

MQ Photonics Research Centre

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

89 Downloads (Pure)

Abstract

A technique for accurate measurement of the principle refractive indices and birefringence for silklike samples is presented. It is based on rotating the linear polarization of the illuminating light on a silk immersed in reference liquid to achieve index matching at the silk/liquid interface. The technique was used to measure the principal refractive indices of a P. eburnus radial silk at different strains. This in turn allows the calculation of strain-optic coefficients. The first measurement of the strain-optic coefficients of spider silk is presented. The technique is more generally applicable to strain-optic study of birefringent micro-optic samples.

Original language	English
Pages (from-to)	4098-4100
Number of pages	3
Journal	Optics Letters
Volume	36
Issue number	20
DOIs	https://doi.org/10.1364/OL.36.004098
Publication status	Published - 15 Oct 2011

Bibliographical note

This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: [http://www.opticsinfobase.org/abstract.cfm?URI=ol-36-20-4098]. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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10.1364/OL.36.004098

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Cite this

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title = "Hybrid immersion-polarization method for measuring birefringence applied to spider silks",

abstract = "A technique for accurate measurement of the principle refractive indices and birefringence for silklike samples is presented. It is based on rotating the linear polarization of the illuminating light on a silk immersed in reference liquid to achieve index matching at the silk/liquid interface. The technique was used to measure the principal refractive indices of a P. eburnus radial silk at different strains. This in turn allows the calculation of strain-optic coefficients. The first measurement of the strain-optic coefficients of spider silk is presented. The technique is more generally applicable to strain-optic study of birefringent micro-optic samples.",

author = "Little, {Douglas J.} and Kane, {Deborah M.}",

note = "This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: [http://www.opticsinfobase.org/abstract.cfm?URI=ol-36-20-4098]. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.",

year = "2011",

month = oct,

day = "15",

doi = "10.1364/OL.36.004098",

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PY - 2011/10/15

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N2 - A technique for accurate measurement of the principle refractive indices and birefringence for silklike samples is presented. It is based on rotating the linear polarization of the illuminating light on a silk immersed in reference liquid to achieve index matching at the silk/liquid interface. The technique was used to measure the principal refractive indices of a P. eburnus radial silk at different strains. This in turn allows the calculation of strain-optic coefficients. The first measurement of the strain-optic coefficients of spider silk is presented. The technique is more generally applicable to strain-optic study of birefringent micro-optic samples.

AB - A technique for accurate measurement of the principle refractive indices and birefringence for silklike samples is presented. It is based on rotating the linear polarization of the illuminating light on a silk immersed in reference liquid to achieve index matching at the silk/liquid interface. The technique was used to measure the principal refractive indices of a P. eburnus radial silk at different strains. This in turn allows the calculation of strain-optic coefficients. The first measurement of the strain-optic coefficients of spider silk is presented. The technique is more generally applicable to strain-optic study of birefringent micro-optic samples.

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Hybrid immersion-polarization method for measuring birefringence applied to spider silks

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Hybrid immersion-polarization method for measuring birefringence applied to spider silks

Abstract

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National Measurement Institute Prize

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