Characterizing spatial uniformity of tensile deformation with an elastic polymer based holographic sensor

Dan Yu; Qi Liu; Hongpeng Liu; Suhua Luo; Mingzhao Wei; Li Li; Weibo Wang

doi:10.1364/OL.428449

Optics Letters
Vol. 46,
Issue 18,
pp. 4438-4441
(2021)
•https://doi.org/10.1364/OL.428449

Characterizing spatial uniformity of tensile deformation with an elastic polymer based holographic sensor

Dan Yu, Qi Liu, Hongpeng Liu, Suhua Luo, Mingzhao Wei, Li Li, and Weibo Wang

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Dan Yu, Qi Liu, Hongpeng Liu, Suhua Luo, Mingzhao Wei, Li Li, and Weibo Wang, "Characterizing spatial uniformity of tensile deformation with an elastic polymer based holographic sensor," Opt. Lett. 46, 4438-4441 (2021)

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Abstract

Tensile deformation uniformity of material has been studied with a stretchable polymer based holographic sensor. The diffraction spectrum distribution of a holographic grating with a large area as a main response parameter is scanned. A linear spatial distribution of peak wavelength provides an important foundation for exploring the tensile uniformity. The same ratio of wavelength to position confirms that the tensile deformation of the material is uniform in a small spot size. Over the entire length of the materials, gradually increasing deformation accumulation is the main uniformity feature of tensile deformation. The uniformity response is expected to apply in sensing the deformation and stress fluctuation distribution in the middle of the thin surface. The non-uniform distribution of stress can be expressed by the nonlinear distribution of the grating diffraction spectrum. The optical measurement of tensile deformation uniformity further validates the applicability of a stretchable polymer based holographic sensor.

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Supplementary Material (9)

Name	Description
Data File 1	Diffraction spectrum response of tensile deformation in three dimensions at spatial position x=0 mm (the central position of the spot)
Data File 2	Peak wavelength as a function of strain at various spatial positions of the sample surface
Data File 3	Slopes of the peak wavelength versus strain curve at various spatial positions
Data File 4	The scanned three-dimensional diffraction spectrums with various tensile deformation displacements L=60 mm.
Data File 5	The scanned three-dimensional diffraction spectrums with various tensile deformation displacements L=65 mm
Data File 6	The scanned three-dimensional diffraction spectrums with various tensile deformation displacements L=70 mm
Data File 7	The extracted peak wavelength as function of scanned spatial position.
Data File 8	The slope of scanned spectrum as a function of tensile deformation displacement with various sample lengths.
Data File 9	The tensile uniformity characterization with various exposure spot on the sample surface.

Data Availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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