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. 2024 Jun 19;14:14144. doi: 10.1038/s41598-024-63605-8

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© The Author(s) 2024

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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/.

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Almost ideal performance enabled by a mode-matched topological GMR CPA device. (a) Angle-dependent absorption spectra for the simple and mode-matched junction spectra. (b) Phase-sensitive absorptance-modulation profiles of mode-matched junction structure in comparison with the conventional GMR and simple-junction cases. We assume coherent light incidence of 9.4-μm-wide Gaussian beams. (c) Electric field patterns at the in-phase CPA (I) and out-of-phase CTS (II) states.