Metaphotonic computational image sensor

Arka Majumdar

doi:10.1117/12.2567402

20 August 2020 Metaphotonic computational image sensor

Arka Majumdar

Proceedings Volume 11460, Metamaterials, Metadevices, and Metasystems 2020; 114601C (2020) https://doi.org/10.1117/12.2567402
Event: SPIE Nanoscience + Engineering, 2020, Online Only

Abstract

Modern image sensors consist of systems of cascaded and bulky spherical optics for imaging with minimal aberrations. While these systems provide high quality images, their improved functionality comes at the cost of increased size and weight. One route to reduce a system’s complexity is via computational imaging, in which much of the aberration correction and functionality of the optics is shifted to post-processing in software. Alternatively, a designer could miniaturize the optics by replacing them with diffractive optical elements, which mimic the functionality of refractive systems in a more compact form factor. Metasurfaces are an extreme example of such diffractive elements, in which quasiperiodic arrays of resonant subwavelength optical antennas impart spatially varying changes on a wavefront. While separately both computational imaging and metasurfaces are promising avenues toward simplifying optical systems, a synergistic combination of these fields can further enhance system performance and facilitate advanced capabilities. In this talk, I will present a method to combine these two techniques to enable ultrathin optics for performing full-color and varifocal imaging across the whole visible spectrum as well as high precision depth sensing. I will also discuss the use of computational techniques for designing metasurfaces with exotic behaviors lacking any intuition-informed design, as well as for performing computation on incident light, with applications in optical information processing, sensing, and computing.

Conference Presentation

Citation Download Citation

Arka Majumdar "Metaphotonic computational image sensor", Proc. SPIE 11460, Metamaterials, Metadevices, and Metasystems 2020, 114601C (20 August 2020); https://doi.org/10.1117/12.2567402

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Image sensors

Nanophotonics

Imaging systems

Computational imaging

Aberration correction

Diffractive optical elements

Image quality

Show All Keywords

Keywords/Phrases

Search In:

Publication Years