Ultradirectional optical nanoantennas with high radiation efficiency by core–shell nanoparticles

Zhenya Meng; Hailin Cao; Di Zhou; Zhoujian Chen; Chengzhuo Zhu; Shiyong Chen; Xiaoheng Tan; Yongliang Zhang

doi:10.1117/1.JNP.11.016005

1 February 2017 Ultradirectional optical nanoantennas with high radiation efficiency by core–shell nanoparticles

Zhenya Meng, Hailin Cao, Di Zhou, Zhoujian Chen, Chengzhuo Zhu, Shiyong Chen, Xiaoheng Tan, Yongliang Zhang

Author Affiliations +

Journal of Nanophotonics, Vol. 11, Issue 1, 016005 (February 2017). https://doi.org/10.1117/1.JNP.11.016005

Abstract

A Yagi-Uda-like optical nanoantenna consisting of metallo-dielectric core–shell nanoparticles has been proposed, and its major characteristics have been investigated theoretically and numerically. Compared with all-dielectric nanoantennas and plasmonic nanoantennas, the proposed nanoantenna may exhibit better directivity and Purcell factor. In addition, the antenna shows high radiation efficiency over 65% for broadband operation as well. This core–shell nanoantenna, allowing a more compact design, may find potential applications in nanoscale lasers, photovoltaic, and energy-harvesting devices.

Citation Download Citation

Zhenya Meng, Hailin Cao, Di Zhou, Zhoujian Chen, Chengzhuo Zhu, Shiyong Chen, Xiaoheng Tan, and Yongliang Zhang "Ultradirectional optical nanoantennas with high radiation efficiency by core–shell nanoparticles," Journal of Nanophotonics 11(1), 016005 (1 February 2017). https://doi.org/10.1117/1.JNP.11.016005

Received: 27 September 2016; Accepted: 12 January 2017; Published: 1 February 2017

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