Active metasurfaces in space and time

Harry A. Atwater Jr.

doi:10.1117/12.3001905

13 March 2024 Active metasurfaces in space and time

Harry A. Atwater Jr.

Proceedings Volume PC12897, High Contrast Metastructures XIII; PC128970J (2024) https://doi.org/10.1117/12.3001905
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

Electro-optically tunable active metasurfaces that enable dynamic modulation of reflection and transmission amplitude, phase, and polarization using resonantly excited materials and phenomena are powerful design elements for meta-imaging and computation. As flat, low-profile optical elements, active metasurfaces have potential serve as cascadable, programmable components in optical meta-imaging systems, such as lens-less cameras and single-photon imaging systems. In this talk, I will discuss metasurfaces with high quality factor, local, resonant elements capable of two-dimensional phase gradient generation, in both passive and active metasurface designs. I will also describe active metasurfaces with both spatial and temporal phase gradients, and an active metasurface as a lens-less imaging system, and compare the characteristics to conventional lens-coupled image sensors.

Conference Presentation

Citation Download Citation

Harry A. Atwater Jr. "Active metasurfaces in space and time", Proc. SPIE PC12897, High Contrast Metastructures XIII, PC128970J (13 March 2024); https://doi.org/10.1117/12.3001905

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