Stretchable metalens with tunable focal length and achromatic characteristics

We propose a stretchable metalens on polydimethylsiloxane (PDMS) substrate. By stretching the stretchable metalens device along x- and y-axis directions, it exhibits highly tunable focal length and achromatic characteristics. The focal length of stretchable metalens keeps as stable and shows a good...

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Autores principales:	Peng Lin, Yu-Sheng Lin, Jie Lin, Bo-Ru Yang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Metasurface Metalens Stretchable Tunable focal-length Achromatism Physics QC1-999
Acceso en línea:	https://doaj.org/article/ed31186d82c04a54953d05bc7a0e2ace
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spelling	oai:doaj.org-article:ed31186d82c04a54953d05bc7a0e2ace2021-11-18T04:48:15ZStretchable metalens with tunable focal length and achromatic characteristics2211-379710.1016/j.rinp.2021.105005https://doaj.org/article/ed31186d82c04a54953d05bc7a0e2ace2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2211379721010068https://doaj.org/toc/2211-3797We propose a stretchable metalens on polydimethylsiloxane (PDMS) substrate. By stretching the stretchable metalens device along x- and y-axis directions, it exhibits highly tunable focal length and achromatic characteristics. The focal length of stretchable metalens keeps as stable and shows a good relationship to the change of the period of stretchable metalens. When the incident wavelengths are 480 nm, 530 nm, 580 nm, and 660 nm, the focal lengths of stretchable metalens can be tuned in a quite linear range by stretching the period of stretchable metalens from 450 nm to 800 nm. The tuning range of focal length is over 200% for these four incident wavelengths. All the full width at half maximum (FWHM) values for different incident wavelengths are small than 2.5 µm. It means the proposed stretchable metalens possesses the stable beam shape of focus length in the whole visible spectrum. The stretchable metalens provides an effective approach in stretchable device applications and new directions for the future designs in metalens applications, such as the next generation of 3D stereo imaging and holographic projection.Peng LinYu-Sheng LinJie LinBo-Ru YangElsevierarticleMetasurfaceMetalensStretchableTunable focal-lengthAchromatismPhysicsQC1-999ENResults in Physics, Vol 31, Iss , Pp 105005- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Metasurface Metalens Stretchable Tunable focal-length Achromatism Physics QC1-999
spellingShingle	Metasurface Metalens Stretchable Tunable focal-length Achromatism Physics QC1-999 Peng Lin Yu-Sheng Lin Jie Lin Bo-Ru Yang Stretchable metalens with tunable focal length and achromatic characteristics
description	We propose a stretchable metalens on polydimethylsiloxane (PDMS) substrate. By stretching the stretchable metalens device along x- and y-axis directions, it exhibits highly tunable focal length and achromatic characteristics. The focal length of stretchable metalens keeps as stable and shows a good relationship to the change of the period of stretchable metalens. When the incident wavelengths are 480 nm, 530 nm, 580 nm, and 660 nm, the focal lengths of stretchable metalens can be tuned in a quite linear range by stretching the period of stretchable metalens from 450 nm to 800 nm. The tuning range of focal length is over 200% for these four incident wavelengths. All the full width at half maximum (FWHM) values for different incident wavelengths are small than 2.5 µm. It means the proposed stretchable metalens possesses the stable beam shape of focus length in the whole visible spectrum. The stretchable metalens provides an effective approach in stretchable device applications and new directions for the future designs in metalens applications, such as the next generation of 3D stereo imaging and holographic projection.
format	article
author	Peng Lin Yu-Sheng Lin Jie Lin Bo-Ru Yang
author_facet	Peng Lin Yu-Sheng Lin Jie Lin Bo-Ru Yang
author_sort	Peng Lin
title	Stretchable metalens with tunable focal length and achromatic characteristics
title_short	Stretchable metalens with tunable focal length and achromatic characteristics
title_full	Stretchable metalens with tunable focal length and achromatic characteristics
title_fullStr	Stretchable metalens with tunable focal length and achromatic characteristics
title_full_unstemmed	Stretchable metalens with tunable focal length and achromatic characteristics
title_sort	stretchable metalens with tunable focal length and achromatic characteristics
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/ed31186d82c04a54953d05bc7a0e2ace
work_keys_str_mv	AT penglin stretchablemetalenswithtunablefocallengthandachromaticcharacteristics AT yushenglin stretchablemetalenswithtunablefocallengthandachromaticcharacteristics AT jielin stretchablemetalenswithtunablefocallengthandachromaticcharacteristics AT boruyang stretchablemetalenswithtunablefocallengthandachromaticcharacteristics
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Stretchable metalens with tunable focal length and achromatic characteristics

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