Active metamaterials with negative static electric susceptibility
Although well‐established textbook arguments suggest that static electric susceptibility χ(0) must be positive in “all bodies,” it has been pointed out that materials that are not in thermodynamic equilibrium are not necessarily subject to this restriction. Media with inverted populations of atomic...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Wiley
2020
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