Engineering light absorption in semiconductor metafilms (Presentation Recording)

Mark L. Brongersma

doi:10.1117/12.2189962

5 October 2015 Engineering light absorption in semiconductor metafilms (Presentation Recording)

Mark L. Brongersma

Proceedings Volume 9546, Active Photonic Materials VII; 95461L (2015) https://doi.org/10.1117/12.2189962
Event: SPIE Nanoscience + Engineering, 2015, San Diego, California, United States

Abstract

The optical properties of semiconductors are typically considered intrinsic and fixed. I will discuss how the rapid developments in the understanding of high-index semiconductor nano-antennas can be leveraged to create ultrathin semiconductor metafilms with designer absorption spectra. Such metafilms are constructed by placing one or more types of semiconductor antennas into a dense array with subwavelength spacings. As semiconductor antennas are only weakly-interacting and feature absorption cross sections that can exceed their geometrical cross section, very strongly absorbing metafilms can be created whose spectral absorption properties can directly be linked to the resonant properties of the constituent building blocks. The ability to create semiconductor metafilms with custom absorption spectra opens up new design strategies for planar optoelectronic devices and solar cells.

Conference Presentation

Citation Download Citation

Mark L. Brongersma "Engineering light absorption in semiconductor metafilms (Presentation Recording)", Proc. SPIE 9546, Active Photonic Materials VII, 95461L (5 October 2015); https://doi.org/10.1117/12.2189962

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