Patent
Imaging using metamaterials
Jung-Tsung Shen,Yuecheng Shen,Lihong V. Wang +2 more
- 07 Oct 2013
6
TL;DR: In this article, a system for imaging an object is presented, which includes a light source configured to emit light having a predetermined wavelength towards the object, and a metalens including a metallic film having a plurality of slits defined therethrough, the plurality of SLits having a width a and a periodicity d that are both less than the predetermined wavelength, wherein the object is positioned between the light source and the metalens.
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Abstract: A system for imaging an object is provided. The system includes a light source configured to emit light having a predetermined wavelength towards the object. The system further includes a metalens including a metallic film having a plurality of slits defined therethrough, the plurality of slits having a width a and a periodicity d that are both less than the predetermined wavelength, wherein the object is positioned between the light source and the metalens. The system further includes a detector configured to acquire measurements indicative of light transmitted through the metalens, and a computing device communicatively coupled to the detector and configured to reconstruct an image of the object based on the acquired measurements.
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Citations
Patent
Collimating Metalenses and Technologies Incorporating the Same
Steve Byrnes,Francesco Aieta,Federico Capasso,Alan Lenef +3 more
- 20 Sep 2016
TL;DR: In this paper, the metalenses are in the form of a hybrid multiregion collimating metalens that includes a first region and a second region, where the hybrid multiiregions collimating is configured to collimate (e.g., visible) light incident thereon.
46
Patent
Achromatic metalens and metalens with reverse chromatic dispersion
Mohammadreza Khorasaninejad,Zhujun Shi,Alexander Y. Zhu,Wei Ting Chen,Vyshakh Sanjeev,Federico Capasso +5 more
- 31 Jan 2018
TL;DR: In this paper, an optical device includes a substrate, a reflective layer, and a metalens disposed over the reflective layer; the metalens includes a plurality of nanopillars, each of which has a phase profile such that the focal length is substantially constant over a wavelength range of about 490 nm to about 550 nm.
7
Patent
Transmissive metasurface lens integration
Gilbert N. Riley,Robert C. Devlin,Adam Erlich,Pawel Latawiec,John Graff +4 more
- 31 Aug 2018
TL;DR: In this article, a transmissive metasurface element is used to shape output light from an illumination source or collect light reflected from a scene to form two unique patterns using the polarization of light.
6
Patent
Lighting device including a collimating metalens
Francesco Aieta,Federico Capasso +1 more
- 26 Oct 2018
TL;DR: In this article, the metalenses are in the form of a hybrid multi-region collimating metalens that includes a first region and a second region, where the first region is configured to collimate (e.g., visible) light incident thereon.
4
Patent
Linear type surface plasmon lens and illumination method thereof
Chen Jiannong
- 30 Nov 2018
TL;DR: In this paper, a linear-type surface plasmon lens is proposed, which is composed of two straight linear slits separated by a surface-plasmon wave length, arranged in a straight line in the longitudinal mode.
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