Submicron particle manipulation using slotted tapered optical fibers

M. Daly; V. G. Truong; S. Nic Chormaic

doi:10.1117/12.2189168

25 August 2015 Submicron particle manipulation using slotted tapered optical fibers

M. Daly, V. G. Truong, S. Nic Chormaic

Proceedings Volume 9548, Optical Trapping and Optical Micromanipulation XII; 954812 (2015) https://doi.org/10.1117/12.2189168
Event: SPIE Nanoscience + Engineering, 2015, San Diego, California, United States

Abstract

The use of optical micro- and nanofibers has become commonplace in the areas of atom trapping using neutral atoms and, perhaps more relevantly, the optical trapping and propulsion of micro- and nanoscale particles. It has been shown that such fibers can be used to manipulate and trap silica and polystyrene particles in the 1-3 µm range using either the fundamental or higher order modes of the fibers, with the propulsion of smaller particle sizes also possible through the use of metallic and/or high index materials. We previously proposed using a focused ion beam nanostructured tapered optical fiber for improved atom trapping geometries; here, we present the details of how these nanostructured optical fibers can be used as a platform for submicron particle trapping. The optical fibers are tapered to approximately 1.2 µm waist diameters, using a custom-built, heat-and-pull fiber rig prior to processing using a focused ion beam. Slots of approximately 300 nm in width and 10-20 µm in length are milled clean though the waist regions of the tapered optical fibers. High fiber transmissions (> 80%) over a broad range of wavelengths (700-1100 nm) are observed. We present simulation results for the trapping of submicron particles and experimental results on the trapping of 200 nm particles. This work demonstrates even further the functionality of optical micro- and nanofibers as trapping devices across a range of regimes.

Conference Presentation

Citation Download Citation

M. Daly, V. G. Truong, and S. Nic Chormaic "Submicron particle manipulation using slotted tapered optical fibers", Proc. SPIE 9548, Optical Trapping and Optical Micromanipulation XII, 954812 (25 August 2015); https://doi.org/10.1117/12.2189168

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