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
- Lättänien metallien laskennallinen tutkimus
- Koskinen, Pekka
- Research Council of Finland
- Direct laser writing of electronic devices on graphene by two-photon oxidation and nitrogen doping
- Pettersson, Mika
- Research Council of Finland
Ministry reporting: Yes
Reporting Year: 2018
JUFO rating: 3