Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2021 Jan 4;12:96. doi: 10.1038/s41467-020-20365-z

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

Fig. 1 — a 3D illustration of the devices. b FDTD simulation of the scattered electric field by one nano-antenna when the GST is in aGST (left panel) and cGST (right panel) phases, respectively, showing the distinctive difference. c. The phase of the scattered mode as a function of the GST nano-antenna width for cGST and aGST phases. The shaded region indicates the range of antenna widths that are used in the phase gradient metasurface. Inset: cross-sectional view of the structure. d, e FDTD simulation results showing effective mode conversion from the TE₀ mode to the TE₁ mode when the GST is in crystalline phase (d), but only a small perturbation when the GST is in amorphous phase (e).