Laser nanoprinting | Nature Photonics

Access through your institution Buy or subscribe The OTM-NP technique makes use of a donor substrate (polydimethylsiloxane on a glass coverslip) that holds a metallic (Au) nanoparticle via

the van der Waals force and a receiver substrate. The gap between the donor and the receiver substrates is typically 1 μm. A continuous-wave laser operating at 1,064 nm wavelength is focused

onto the Au nanoparticle with a beam intensity of 100 mW μm–2. The Au nanoparticle absorbs the laser energy and heats the donor substrate beneath it, leading to rapid thermal expansion.

Owing to this expansion force, the Au nanoparticle is released from the donor substrate and moves towards the receiver substrate, guided by the optical gradient and axial forces of the

focused laser beam. When the Au nanoparticle reaches the receiver substrate, it is held in place by the van der Waals force. A printing accuracy of better than 99 nm was reported. This is a

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https://www.nature.com/naturephotonics Noriaki Horiuchi Authors * Noriaki Horiuchi View author publications You can also search for this author inPubMed Google Scholar CORRESPONDING AUTHOR

Correspondence to Noriaki Horiuchi. RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Horiuchi, N. Laser nanoprinting. _Nat. Photonics_ 14, 474 (2020).

https://doi.org/10.1038/s41566-020-0672-3 Download citation * Published: 27 July 2020 * Issue Date: August 2020 * DOI: https://doi.org/10.1038/s41566-020-0672-3 SHARE THIS ARTICLE Anyone you

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