Journal
OPTICS EXPRESS
Volume 21, Issue 7, Pages 9017-9023Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.21.009017
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Funding
- DFG [IH 17/18-1]
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A novel technique is introduced that dramatically increases the quality and spatial resolution of directly ablated periodic nanostructures on materials. The presented method utilizes a PMMA confinement layer spin coated on the surface of the ablated material reducing the violence and speed of expansion of the molten material. As a result, droplet formation deteriorating the achievable resolution can be completely avoided. Moreover, motion control of the molten material leads to structural details with dimensions well below the irradiation wavelength. (C) 2013 Optical Society of America
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