Interband resonant high-harmonic generation by valley polarized electron–hole pairs

Monolayer materials have tunable electronic structures that may be useful for optical applications. Here the authors show even and odd high-harmonic generation up to 15th order from a variety of monolayers with different band properties and emphasize the role of nonlinear interband polarization.

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Bibliographic Details
Main Authors: Naotaka Yoshikawa, Kohei Nagai, Kento Uchida, Yuhei Takaguchi, Shogo Sasaki, Yasumitsu Miyata, Koichiro Tanaka
Format: article
Language:EN
Published: Nature Portfolio 2019
Subjects:
Q
Online Access:https://doaj.org/article/87ed18e58f104f638fa9de55dd1b888f
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Summary:Monolayer materials have tunable electronic structures that may be useful for optical applications. Here the authors show even and odd high-harmonic generation up to 15th order from a variety of monolayers with different band properties and emphasize the role of nonlinear interband polarization.