Chiral Thin Film Structures Based on Arrays of Cobalt Nanohelices Obtained By Oblique Deposition

IF 0.48 Q4 Physics and Astronomy

Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-10-14 DOI:10.1134/S1062873824707761

O. S. Trushin, I. S. Fattakhov, A. A. Popov, L. A. Mazaletsky, R. A. Gaidukasov, A. V. Myakonkikh

引用次数: 0

Abstract

Chiral thin film structures based on arrays of cobalt nanohelices obtained by oblique angle deposition were experimentally studied. It was shown that, in the conditions of electron-beam evaporation on rotating inclined substrate, arrays of nanohelices wound in the same direction are formed. By varying substrate rotation speed, it is possible to change geometrical sizes of those helixes (helix pitch, helix radius). The thus obtained chiral metasurface demonstrates pronounced asymmetry of optical characteristics at the reflection of right and left circular polarized light.

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基于斜沉积钴纳米螺旋阵列的手性薄膜结构

实验研究了通过斜角沉积获得的基于钴纳米螺旋阵列的手性薄膜结构。实验表明，在旋转倾斜基底上进行电子束蒸发的条件下，会形成沿同一方向缠绕的纳米螺旋阵列。通过改变基片的旋转速度，可以改变这些螺旋的几何尺寸（螺旋间距、螺旋半径）。由此获得的手性元表面在反射左右圆偏振光时具有明显的非对称光学特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bulletin of the Russian Academy of Sciences: Physics Physics and Astronomy-Physics and Astronomy (all)

CiteScore

0.90

自引率

0.00%

发文量

251

期刊介绍： Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.