Optical trapping of a nanoparticle by a copper nanoantenna

Zhe Xu

doi:10.1117/12.2616106

27 October 2021 Optical trapping of a nanoparticle by a copper nanoantenna

Zhe Xu

Proceedings Volume 11926, Optical Manipulation and Structured Materials Conference 2021; 119260H (2021) https://doi.org/10.1117/12.2616106
Event: SPIE Technologies and Applications of Structured Light, 2021, Online, Japan

Abstract

We demonstrate the optical trapping of a single dielectric nanoparticle in a microfluidic chamber using a coupled Tshaped copper plasmonic nanoantenna at 1064 nm wavelength for studying light–matter interactions. The nanoantenna consists of two copper elements separated by a 50 nm gap and each element is featured with two nanoblocks. We present the finite element method numerical simulations to clarify the optical trapping process, including near-field distributions, optical forces, temperature rises, and thermal-induced fluid velocities. Our results show that the plasmon-assisted responses produced by the copper nanoantenna are quite similar to the gold nanoantenna owing to the comparable optical and thermal properties. We envision the designed copper nanoantenna could become a novel enabling tool that could potentially open new opportunities in various fields of science, such as quantum information processing and photonic integrated circuits.

Citation Download Citation

Zhe Xu "Optical trapping of a nanoparticle by a copper nanoantenna", Proc. SPIE 11926, Optical Manipulation and Structured Materials Conference 2021, 119260H (27 October 2021); https://doi.org/10.1117/12.2616106

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