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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

1)

Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8603, Japan

2)

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)

Abstract

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.

Copyright (c) 2021 The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

fiberform nanostructure, reflectivity, helium plasma

DOI: 10.1585/pfr.16.1206098

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References

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