Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Optical trapping with planar silicon metalenses

Not Accessible

Your library or personal account may give you access

Abstract

Contactless manipulation of micron-scale objects in a microfluidic environment is a key ingredient for a range of applications in the biosciences, including sorting, guiding, and analysis of cells and bacteria. Optical forces are powerful for this purpose but, typically, require bulky focusing elements to achieve the appropriate optical field gradients. To this end, realizing the focusing optics in a planar format would be very attractive and conducive to the integration of such microscale devices, either individually or as arrays. Here we report on, to the best of our knowledge, the first experimental demonstration of optical trapping using planar silicon metalenses illuminated with a collimated laser beam. The structures consist of high-contrast gratings with a locally varying period and duty cycle. They are designed to mimic parabolic reflectors with a numerical aperture of 0.56 at a vacuum wavelength of 1064 nm. We achieve both two- and three-dimensional trapping in water, with the latter realized by omitting the central Fresnel zones. This Letter highlights the versatility of such lithographically defined metastructures for exerting optical forces without the need for traditional optical elements.

© 2018 Optical Society of America

Full Article  |  PDF Article
More Like This
Optical trapping and micromanipulation with a photonic lantern-mode multiplexer

Amado M. Velázquez-Benítez, K. Yanín Guerra-Santillán, Raúl Caudillo-Viurquez, J. Enrique Antonio-López, Rodrigo Amezcua-Correa, and Juan Hernández-Cordero
Opt. Lett. 43(6) 1303-1306 (2018)

Experimental demonstration of optical trapping and manipulation with multifunctional metasurface

Xingyi Li, Yuan Zhou, Suyang Ge, Guoxi Wang, Siqi Li, Zilei Liu, Xing Li, Wei Zhao, Baoli Yao, and Wenfu Zhang
Opt. Lett. 47(4) 977-980 (2022)

All-dielectric silicon metalens for two-dimensional particle manipulation in optical tweezers

Teanchai Chantakit, Christian Schlickriede, Basudeb Sain, Fabian Meyer, Thomas Weiss, Nattaporn Chattham, and Thomas Zentgraf
Photon. Res. 8(9) 1435-1440 (2020)

Supplementary Material (2)

NameDescription
Visualization 1       Optical trapping with metalens array
Visualization 2       3D Optical trapping with metalens array

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (2)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved