Ultra-wide field-of-view planar optics

A technology of optical components and field of view, which is applied in the field of ultra-wide field of view planar optical devices, and can solve problems such as wide-angle performance that has not yet been realized

Pending Publication Date: 2022-04-12
MASSACHUSETTS INST OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

A metalens with wide-angle performance comparable to its traditional refractive counterpart has not been realized so far

Method used

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  • Ultra-wide field-of-view planar optics
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[0053] The wide field of view (WFOV) metalens of the present invention has a simple and easy-to-manufacture architecture in which a single metasurface layer and apertures are integrated on opposite sides of a single thin substrate. It can have a diffraction-limited FOV of more than 170° and a flat focal plane, which greatly simplifies the associated detector (for imaging and detection) or light emitter (for image / beam projection, display, etc.) array design. It can operate over a wide range of wavelengths (for example, from visible to infrared (IR)), depending on the design of the metasurface and the materials of the substrate and metasurface. Metasurfaces can be designed to operate at any wavelength in the electromagnetic spectrum from the microwave to the ultraviolet (UV) region, with bandwidths spanning up to an octave.

[0054] Furthermore, the WFOV metalens design principles disclosed in this paper are general and applicable to arbitrary metaatom configurations and wavele...

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Abstract

Wide angle optical functions are beneficial for imaging and image projection devices. Conventionally, wide-angle operation is achieved through complex assembly of optical elements. The recent progress has achieved metasurface lenses or superlenses, which are ultra-thin planar lenses with nano-antennas that control the phase, amplitude and / or polarization of the light. Herein, we present a method that can be used in the gt, which is unprecedented; the invention relates to a super lens for realizing diffraction limited focusing and imaging on a 170-degree field of view (FOV). The lens is integrated on a single piece flat substrate and includes an aperture on one side and a single metasurface on the other side. The metasurface corrects third order Seidel aberrations, including coma, astigmatism, and image field curvature. The superlens has a planar focal plane, which enables the system architecture for imaging and projection to be greatly simplified. The super-lens design is universal and can easily adapt to different super-atom geometrical shapes and wavelength ranges to meet diversified application requirements.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of priority under 35 U.S.C. § 119(e) to U.S. Application No. 62 / 897,452, filed September 9, 2019, and U.S. Application No. 62 / 884,645, filed August 8, 2019, in which Each of which is incorporated herein by reference in its entirety. [0003] governmental support [0004] This invention was made with Government support under Grant No. HR0011-1-72-0029 awarded by the Defense Advanced Research Projects Agency (DARPA). The government has certain rights in this invention. Background technique [0005] Wide-angle optics are critical for high-performance imaging, inspection, and image or beam projection. One of the earliest examples of wide-angle optics was the panoramic camera invented by Thomas Sutton in 1858. This panoramic camera consists of a single water-filled spherical lens that produces an image on a curved glass plate covered with a reactive emulsion. This approach was quick...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G02B1/00G02F1/01G02B5/00B82Y20/00
CPCG02B1/002G02B13/06G02B27/0172G02B19/0004H04N23/698G02B6/0023
Inventor胡崛隽古田M·沙拉吉诺夫
OwnerMASSACHUSETTS INST OF TECH