Funding for this research was provided by:
National Natural Science Foundation of China (12104227)
the Scientific Research Foundation of Nanjing Institute of Technology (YKJ202021)
Article Title: Higher-order exceptional points using lossfree negative-index materials
Journal Title: Physica Scripta
Article Type: paper
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Publication dates
Date Received: 2023-04-25
Date Accepted: 2023-08-03
Online publication date: 2023-08-14