A1 Journal article (refereed)
Optically Forged Diffraction-Unlimited Ripples in Graphene (2018)

Koskinen, P., Karppinen, K., Myllyperkiö, P., Hiltunen, V.-M., Johansson, A., & Pettersson, M. (2018). Optically Forged Diffraction-Unlimited Ripples in Graphene. Journal of Physical Chemistry Letters, 9(20), 6179-6184. https://doi.org/10.1021/acs.jpclett.8b02461

JYU authors or editors

Publication details

All authors or editors: Koskinen, Pekka; Karppinen, Karoliina; Myllyperkiö, Pasi; Hiltunen, Vesa-Matti; Johansson, Andreas; Pettersson, Mika

Journal or series: Journal of Physical Chemistry Letters

ISSN: 1948-7185

eISSN: 1948-7185

Publication year: 2018

Volume: 9

Issue number: 20

Pages range: 6179-6184

Publisher: American Chemical Society

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1021/acs.jpclett.8b02461

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/62898

Web address of parallel published publication (pre-print): https://arxiv.org/abs/1810.06861

Abstract

In nanofabrication, just as in any other craft, the scale of spatial details is limited by the dimensions of the tool at hand. For example, the smallest details of direct laser writing with far-field light are set by the diffraction limit, which is approximately half of the used wavelength. In this work, we overcome this universal assertion by optically forging graphene ripples that show features with dimensions unlimited by diffraction. Thin sheet elasticity simulations suggest that the scaled-down ripples originate from the interplay between substrate adhesion, in-plane strain, and circular symmetry. The optical forging technique thus offers an accurate way to modify and shape 2D materials and facilitates the creation of controllable nanostructures for plasmonics, resonators, and nano-optics.

Keywords: nanotechnology; nanostructures; graphene

Free keywords: optical forging

Contributing organizations

Related projects

Ministry reporting: Yes

Reporting Year: 2018

JUFO rating: 3