Optical nanomanipulation on solid substrates via optothermally-gated photon nudging

Jingang Li, Yaoran Liu, Linhan Lin, Mingsong Wang, Taizhi Jiang, Jianhe Guo, Hongru Ding, Pavana Siddhartha Kollipara, Yuji Inoue, Donglei Fan, Brian A. Korgel and Yuebing Zheng ()
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Jingang Li: The University of Texas at Austin
Yaoran Liu: The University of Texas at Austin
Linhan Lin: The University of Texas at Austin
Mingsong Wang: The University of Texas at Austin
Taizhi Jiang: The University of Texas at Austin
Jianhe Guo: The University of Texas at Austin
Hongru Ding: The University of Texas at Austin
Pavana Siddhartha Kollipara: The University of Texas at Austin
Yuji Inoue: The University of Texas at Austin
Donglei Fan: The University of Texas at Austin
Brian A. Korgel: The University of Texas at Austin
Yuebing Zheng: The University of Texas at Austin

Nature Communications, 2019, vol. 10, issue 1, 1-9

Abstract: Abstract Constructing colloidal particles into functional nanostructures, materials, and devices is a promising yet challenging direction. Many optical techniques have been developed to trap, manipulate, assemble, and print colloidal particles from aqueous solutions into desired configurations on solid substrates. However, these techniques operated in liquid environments generally suffer from pattern collapses, Brownian motion, and challenges that come with reconfigurable assembly. Here, we develop an all-optical technique, termed optothermally-gated photon nudging (OPN), for the versatile manipulation and dynamic patterning of a variety of colloidal particles on a solid substrate at nanoscale accuracy. OPN takes advantage of a thin surfactant layer to optothermally modulate the particle-substrate interaction, which enables the manipulation of colloidal particles on solid substrates with optical scattering force. Along with in situ optical spectroscopy, our non-invasive and contactless nanomanipulation technique will find various applications in nanofabrication, nanophotonics, nanoelectronics, and colloidal sciences.

Date: 2019
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DOI: 10.1038/s41467-019-13676-3

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