Orbital analysis of single nanoparticle in-plane motion driven by an optical vortex

Kichitaro Nakajima; Tempei Tsujimura; Kentaro Doi; Satoyuki Kawano

doi:10.1117/12.2573779

15 June 2020 Orbital analysis of single nanoparticle in-plane motion driven by an optical vortex

Kichitaro Nakajima, Tempei Tsujimura, Kentaro Doi, Satoyuki Kawano

Proceedings Volume 11522, Optical Manipulation and Structured Materials Conference 2020; 115220O (2020) https://doi.org/10.1117/12.2573779
Event: SPIE Technologies and Applications of Structured Light, 2020, Yokohama, Japan

Abstract

Quantitative evaluation of optical forces on nanoscale objects caused by optical vortices is significant for application of optical vortex to nanotechnology. In this study, we analyze an orbital motion of single gold nanoparticles with a diameter of 150 nm driven by the Laguerre-Gaussian beam. A nanofluidic channel with a height of 300 nm is used to confine the orbital motion into two-dimensional plane by restricting their Brownian motion perpendicular to a focal plane of objective lens, resulting in the visualization by dark-field microscopy. A particle tracking analysis of the acquired images allows the quantitative evaluation of optical forces, such as trapping stiffness and driving force of the orbital motion, and show a reasonable agreement with a theoretical estimation.

Citation Download Citation

Kichitaro Nakajima, Tempei Tsujimura, Kentaro Doi, and Satoyuki Kawano "Orbital analysis of single nanoparticle in-plane motion driven by an optical vortex", Proc. SPIE 11522, Optical Manipulation and Structured Materials Conference 2020, 115220O (15 June 2020); https://doi.org/10.1117/12.2573779

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