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- W4316829907 abstract "Virtual gain refers to the simulation of real light amplification using radiation with exponentially decaying amplitude, so that its complex frequency corresponds to the scattering pole. We theoretically study virtual gain in a two-level resonant medium for different regimes of light-matter interaction depending on the radiation intensity. We show that virtual gain at the pole can be most clearly observed for low intensities, when the medium is absorbing, in contrast to the saturated medium at high intensities. The efficiency of virtual gain can be tuned with the light intensity and can be controlled dynamically through the population inversion of the medium. Our results show that resonantly absorbing media paradoxically mimics gain-like response, which admit a number of related phenomena and methods to mold both optical signals and material properties without relying on instability-prone gain media." @default.
- W4316829907 created "2023-01-17" @default.
- W4316829907 creator A5034878473 @default.
- W4316829907 date "2023-01-13" @default.
- W4316829907 modified "2023-10-14" @default.
- W4316829907 title "Tunable virtual gain in resonantly absorbing media" @default.
- W4316829907 doi "https://doi.org/10.48550/arxiv.2301.05404" @default.
- W4316829907 hasPublicationYear "2023" @default.
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