Controlling the sign of chromatic dispersion in diffractive optics with dielectric metasurfaces

doi:10.1364/OPTICA.4.000625.s001

Title: Controlling the sign of chromatic dispersion in diffractive optics with dielectric metasurfaces

Full Record
Other Related Research

Abstract

Diffraction gratings disperse light in a rainbow of colors with the opposite order than refractive prisms, a phenomenon known as negative dispersion. While refractive dispersion can be controlled via material refractive index, diffractive dispersion is fundamentally an interference effect dictated by geometry. Here we show that this fundamental property can be altered using dielectric metasurfaces, and we experimentally demonstrate diffractive gratings and focusing mirrors with positive, zero, and hyper-negative dispersion. These optical elements are implemented using a reflective metasurface composed of dielectric nano-posts that provide simultaneous control over phase and its wavelength derivative. In addition, as a first practical application, we demonstrate a focusing mirror that exhibits a five-fold reduction in chromatic dispersion, and thus an almost three-times increase in operation bandwidth compared with a regular diffractive element. In conclusion, this concept challenges the generally accepted dispersive properties of diffractive optical devices and extends their applications and functionalities.

Authors:

Arbabi, Ehsan ^[1]; Arbabi, Amir ^[2]; Kamali, Seyedeh ^[1]; Horie, Yu ^[1]; Faraon, Andrei ^[1]

California Inst. of Technology (CalTech), Pasadena, CA (United States)
California Inst. of Technology (CalTech), Pasadena, CA (United States); Univ. of Massachusetts, Amherst, MA (United States)

Publication Date:: 2017-06-07

Research Org.:: Energy Frontier Research Centers (EFRC), Washington, D.C. (United States). Light-Material Interactions in Energy Conversion (LMI)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

OSTI Identifier:: 1470401

Grant/Contract Number:: SC0001293

Resource Type:: Accepted Manuscript

Journal Name:: Optica

Additional Journal Information:: Journal Volume: 4; Journal Issue: 6; Related Information: LMI partners with California Institute of Technology (lead); Harvard University; University of Illinois, Urbana-Champaign; Lawrence Berkeley National Laboratory; Journal ID: ISSN 2334-2536

Publisher:: Optical Society of America

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; solar (photovoltaic); solid state lighting; phonons; thermal conductivity; electrodes - solar; materials and chemistry by design; optics; synthesis (novel materials); synthesis (self-assembly)

Citation Formats


                    Arbabi, Ehsan, Arbabi, Amir, Kamali, Seyedeh, Horie, Yu, and Faraon, Andrei. Controlling the sign of chromatic dispersion in diffractive optics with dielectric metasurfaces.  United States: N. p., 2017. 
        Web.  doi:10.1364/OPTICA.4.000625.s001.

Copy to clipboard


                    Arbabi, Ehsan, Arbabi, Amir, Kamali, Seyedeh, Horie, Yu, & Faraon, Andrei. Controlling the sign of chromatic dispersion in diffractive optics with dielectric metasurfaces.  United States.  doi:10.1364/OPTICA.4.000625.s001.

Copy to clipboard


                    Arbabi, Ehsan, Arbabi, Amir, Kamali, Seyedeh, Horie, Yu, and Faraon, Andrei. Wed .  
        "Controlling the sign of chromatic dispersion in diffractive optics with dielectric metasurfaces".  United States.  doi:10.1364/OPTICA.4.000625.s001.  https://www.osti.gov/servlets/purl/1470401.

Copy to clipboard


                    
@article{osti_1470401,

  title        = {Controlling the sign of chromatic dispersion in diffractive optics with dielectric metasurfaces},

  author       = {Arbabi, Ehsan and Arbabi, Amir and Kamali, Seyedeh and Horie, Yu and Faraon, Andrei},

  abstractNote = {Diffraction gratings disperse light in a rainbow of colors with the opposite order than refractive prisms, a phenomenon known as negative dispersion. While refractive dispersion can be controlled via material refractive index, diffractive dispersion is fundamentally an interference effect dictated by geometry. Here we show that this fundamental property can be altered using dielectric metasurfaces, and we experimentally demonstrate diffractive gratings and focusing mirrors with positive, zero, and hyper-negative dispersion. These optical elements are implemented using a reflective metasurface composed of dielectric nano-posts that provide simultaneous control over phase and its wavelength derivative. In addition, as a first practical application, we demonstrate a focusing mirror that exhibits a five-fold reduction in chromatic dispersion, and thus an almost three-times increase in operation bandwidth compared with a regular diffractive element. In conclusion, this concept challenges the generally accepted dispersive properties of diffractive optical devices and extends their applications and functionalities.},

  doi          = {10.1364/OPTICA.4.000625.s001},

  journal      = {Optica},

  number       = 6,

  volume       = 4,

  place        = {United States},

  year         = {2017},

  month        = {6}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

DOI: 10.1364/OPTICA.4.000625.s001

Other availability

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

Controlling the sign of chromatic dispersion in diffractive optics with dielectric metasurfaces

Journal Article Arbabi, Ehsan ; Arbabi, Amir ; Kamali, Seyedeh Mahsa ; ... - Optica

Diffraction gratings disperse light in a rainbow of colors with the opposite order than refractive prisms, a phenomenon known as negative dispersion. While refractive dispersion can be controlled via material refractive index, diffractive dispersion is fundamentally an interference effect dictated by geometry. Here we show that this fundamental property can be altered using dielectric metasurfaces, and we experimentally demonstrate diffractive gratings and focusing mirrors with positive, zero, and hyper-negative dispersion. These optical elements are implemented using a reflective metasurface composed of dielectric nano-posts that provide simultaneous control over phase and its wavelength derivative. In addition, as a first practical application,more »« less
Cited by 65
DOI: 10.1364/OPTICA.4.000625

Full Text Available
Angle-Multiplexed Metasurfaces: Encoding Independent Wavefronts in a Single Metasurface under Different Illumination Angles

Journal Article Kamali, Seyedeh Mahsa ; Arbabi, Ehsan ; Arbabi, Amir ; ... - Physical Review X

The angular response of thin diffractive optical elements is highly correlated. For example, the angles of incidence and diffraction of a grating are locked through the grating momentum determined by the grating period. Other diffractive devices, including conventional metasurfaces, have a similar angular behavior due to the fixed locations of the Fresnel zone boundaries and the weak angular sensitivity of the meta-atoms. To alter this fundamental property, we introduce angle-multiplexed metasurfaces, composed of reflective high-contrast dielectric U-shaped meta-atoms, whose response under illumination from different angles can be controlled independently. Furthermore this enables flat optical devices that impose different and independentmore »« less
Cited by 28
DOI: 10.1103/PhysRevX.7.041056
Ultrathin transmissive metasurfaces for multi-wavelength optics in the visible

Journal Article Cai, Haogang ; Czaplewski, David ; Ogando, Karim ; ... - Applied Physics Letters

Metasurface-based optical elements have the ability to shape wavefronts by locally changing the properties of incident illumination. They hold great potential to promote a new generation of wearable devices and thin optical systems for imaging and sensing. However, due to the diffractive nature of these metasurfaces, chromatic aberration represents a critical challenge toward practical implementations, especially for the visible spectrum. Existing solutions for multi-wavelength meta-optics inevitably increase the device thickness and system complexity, similar to the conventional refractive and diffractive counterparts. They are also limited to polarization sensitive lenses with a small size and numerical aperture (NA). In this manuscript,more »« less
Cited by 1
DOI: 10.1063/1.5082557

Full Text Available
Decoupling optical function and geometrical form using conformal flexible dielectric metasurfaces

Journal Article Kamali, Seyedeh Mahsa ; Arbabi, Amir ; Arbabi, Ehsan ; ... - Nature Communications

Physical geometry and optical properties of objects are correlated: cylinders focus light to a line, spheres to a point and arbitrarily shaped objects introduce optical aberrations. Multifunctional components with decoupled geometrical form and optical function are needed when specific optical functionalities must be provided while the shapes are dictated by other considerations like ergonomics, aerodynamics or aesthetics. Here we demonstrate an approach for decoupling optical properties of objects from their physical shape using thin and flexible dielectric metasurfaces which conform to objects' surface and change their optical properties. The conformal metasurfaces are composed of silicon nano-posts embedded in a polymermore »« less
Cited by 22
DOI: 10.1038/ncomms11618

Full Text Available
Chromatic dispersion compensation in a Fresnel lens by means of a diffraction grating

Conference Johnson, K C

A Fresnel lens's imaging performance can be seriously impaired by chromatic dispersion which typically doubles the diameter of the focused sun image in a solar concentrator. This problem can be alleviated by means of a molded diffraction grating whose diffraction-induced dispersion offsets and substantially cancels the lens's intrinsic refractive index dispersion. The grating lines would comprise a second tier of small-scale, Fresnel-type facets superimposed on the lens facets, with a typical grating facet height of about 40 microinches and a facet width ranging from about 1 milliinch at the edge of the lens to around 5 or 10 milliinches nearmore »« less

Similar Records