Plasma and Fusion Research

Volume 16, 1206098 (2021)

Rapid Communications

Optical Properties of Fiberform Nanostructured Tungsten in the Infrared Wavelength Range
Shuangyuan FENG, Shin KAJITA1), Ryo YASUHARA, Ryota IMAZAWA2) and Masayuki TOKITANI
National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8603, Japan
National Institutes for Quantum and Radiological Science and Technology, Naka, Ibaraki 311-0193, Japan
(Received 17 September 2021 / Accepted 29 September 2021 / Published 25 November 2021)


Fiberform nanostructured tungsten (FN-W) samples were synthesized by helium plasma irradiation with different irradiation times. It is shown that the optical reflectivity decreases significantly with the increase of the irradiation time, even in a long-wavelength infrared range up to several dozen µm. These experimental results are of importance for the usage of retroflectors and will offer a promising direction for other practical applications.


fiberform nanostructure, reflectivity, helium plasma

DOI: 10.1585/pfr.16.1206098


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