Silicon carbide synthetic complex far-IR waves to overcome optical loss in superlenses

https://phys.org/news/2023-08-physicists-employ-synthetic-complex-frequency.html

"virtual gain offset intrinsic loss, improved imaging resolution significantly... Fourier Transformation break down truncated CFW many components different real frequencies... combining blurred images measured at different real frequencies formed complex frequency clear image with deep-subwavelength resolution... lattice vibration couple with light, superimaging effect... ultrahigh-resolution imaging... sound-, elastic- and quantum waves, superimaging, molecular sensing and nanophotonic integrated circuits"

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