Abstract

Two-photon polymerization was employed for fabricating microtools amenable to optical trapping and manipulation. A disk feature was included as part of the microtools and further functionalized by electron-beam deposition. The nanostructured gold layer on the disk facilitates off-resonant plasmonic heating upon illumination with a laser beam. As a consequence, natural convection characterized by the typical toroidal shape resembling that of Rayleigh–Bénard flow can be observed. A velocity of several μm·s1 is measured for 2 μm microspheres dispersed in the surroundings of the microtool. To the best of our knowledge, this is the first time that thermoplasmonic-induced natural convection is experimentally demonstrated using a mobile heat source.

© 2018 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Active gratings tuned by thermoplasmonics-induced phase transition in vanadium dioxide thin films

B. H. Wu, X. F. Xu, and C. R. Wang
Opt. Lett. 41(24) 5768-5771 (2016)

Fabricated nanogap-rich plasmonic nanostructures through an optothermal surface bubble in a droplet

Farzia Karim, Erick S. Vasquez, and Chenglong Zhao
Opt. Lett. 43(2) 334-336 (2018)

Passive compensation of the misalignment instability caused by air convection in thin-disk lasers

Tom Dietrich, Stefan Piehler, Christoph Röcker, Martin Rumpel, Marwan Abdou Ahmed, and Thomas Graf
Opt. Lett. 42(17) 3263-3266 (2017)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

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 OSA member, or as an authorized user of your institution.

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

Figures (5)

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

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

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

Metrics

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

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