Title: Ultra-flat optical device with high transmission efficiency

Abstract

An optical device includes a nanostructured transparent dielectric film, which is a Huygens metasurface. The Huygens metasurface imparts a phase change to light propagating through or reflecting from the surface. The phase change can be achieved by means of a resonant interaction between light and the Huygens resonators, resulting in a controllable phase change of 0 to 2π with approximately 100% light transmission characterized by a below 0.1 dielectric loss tangent of delta and with the height of the resonators less than the wavelength of light. In one embodiment, the metasurface includes titanium dioxide, but many materials or stacks of different materials may be used. The optical device is functional throughout the visible spectrum between 380 and 700 nm. The nanostructured transparent dielectric film includes a plurality of Huygens resonators. The phase and the amplitude of the nanostructured transparent dielectric film are modulated by arranging the plurality of Huygens resonators such that certain properties, including the radius and height of each Huygens resonator, as well as the gap between two adjacent Huygens resonators, are controlled to optimize the performance of the optical device within the visible spectrum.

Inventors:

Czaplewski, David A.; Lopez, Daniel; Roy, Tapashree

Issue Date:

2019-06-18

Research Org.:

Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1568487

Patent Number(s):

10324314

Application Number:

15/604,490

Assignee:

UChicago Argonne, LLC (Chicago, IL)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

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B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y20/00 - Nanooptics, e.g. quantum optics or photonic crystals

G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

G02B1/002 - {made of materials engineered to provide properties not available in nature, e.g. metamaterials}
G02B3/08 - with discontinuous faces, e.g. Fresnel lens {
G02B5/201 - {in the form of arrays}

G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING

G02F1/0063 - {Optical properties, e.g. absorption, reflection, non-linear effects, birefringence
G02F1/0072 - {Mechanical, acoustic, electro-elastic, magneto-elastic properties}
G02F1/0081 - {Electric or magnetic properties}
G02F1/01 - for the control of the intensity, phase, polarisation or colour 
G02F1/0102 - {Constructional details
G02F1/0121 - {Operation of the device
G02F1/23 - for the control of the colour
G02F2202/30 - Metamaterials
G02F2202/42 - Materials having a particular dielectric constant

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01P - WAVEGUIDES

H01P7/00 - Resonators of the waveguide type
H01P7/10 - Dielectric resonators

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT

H01S3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
H01S3/08 - Construction or shape of optical resonators or components thereof {
H01S5/10 - Construction or shape of the optical resonator {, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region

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DOE Contract Number:  

AC02-06CH11357

Resource Type:

Patent

Resource Relation:

Patent File Date: 05/24/2017

Country of Publication:

United States

Language:

English