Maximal terahertz emission in high harmonic generation from 3D Dirac semimetals

To increase the output intensity of conventional THz harmonic generation platforms, the medium is normally made continuously thicker. Here, 3D Dirac semimetal films are predicted to increase the THz output by orders of magnitude, but only up to an optimal thickness dictated by its nonlinear response...

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Bibliographic Details
Main Authors: Jeremy Lim, Yee Sin Ang, Lay Kee Ang, Liang Jie Wong
Format: Article
Language:English
Published: Nature Portfolio 2021-11-01
Series:Communications Physics
Online Access:https://doi.org/10.1038/s42005-021-00738-6