We report the fabrication and characterization of a simple and compact hyperspectral imaging setup based on a stretchable diffraction grating made with a metal-polymer nanocomposite. The nanocomposite is produced by implanting Ag clusters in a poly(dimethylsiloxane) film by supersonic cluster beam implantation. The deformable grating has curved grooves and is imposed on a concave cylindrical surface, thus obtaining optical power in two orthogonal directions. Both diffractive and optical powers are obtained by reflection, thus realizing a diffractive-catoptric optical device. This makes it easier to minimize aberrations. We prove that, despite the extended spectral range and the simplified optical scheme, it is actually possible to work with a traditional CCD sensor and achieve a good spectral and spatial resolution.
Hyperspectral imaging with deformable gratings fabricated with metal-elastomer nanocomposites / M.A.C. Potenza, D. Nazzari, L. Cremonesi, I. Denti, P. Milani. - In: REVIEW OF SCIENTIFIC INSTRUMENTS. - ISSN 0034-6748. - 88:11(2017 Nov). [10.1063/1.5009180]
Hyperspectral imaging with deformable gratings fabricated with metal-elastomer nanocomposites
M.A.C. Potenza
Primo
;L. Cremonesi;P. MilaniUltimo
2017
Abstract
We report the fabrication and characterization of a simple and compact hyperspectral imaging setup based on a stretchable diffraction grating made with a metal-polymer nanocomposite. The nanocomposite is produced by implanting Ag clusters in a poly(dimethylsiloxane) film by supersonic cluster beam implantation. The deformable grating has curved grooves and is imposed on a concave cylindrical surface, thus obtaining optical power in two orthogonal directions. Both diffractive and optical powers are obtained by reflection, thus realizing a diffractive-catoptric optical device. This makes it easier to minimize aberrations. We prove that, despite the extended spectral range and the simplified optical scheme, it is actually possible to work with a traditional CCD sensor and achieve a good spectral and spatial resolution.File | Dimensione | Formato | |
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