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Non‐Linear Optics: Doubly‐Resonant Enhancement of Second Harmonic Generation from a WS 2 Nanomesh Polymorph with a Modified Energy Landscape (Laser Photonics Rev. 15(6)/2021)
Author(s) -
Murphy Alexander W. A.,
Liu Zichen,
Gorbach Andrey V.,
Ilie Adelina,
Valev Ventsislav K.
Publication year - 2021
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.202170036
Subject(s) - nanomesh , materials science , photonics , laser , second harmonic generation , energy landscape , optoelectronics , high harmonic generation , nonlinear optics , optics , graphene , nanotechnology , physics , thermodynamics
The cover image represents laser light illuminating a densely‐spaced, randomly‐arranged, 3D‐network of a WS 2 polymorph (“nanomesh”), where 2D sheets intersect and twist on top of each other, modifying the energy landscape of the material, as presented by Ventsislav K. Valev and co‐workers in article number 2100117. The multiphoton emission is dominated by large second harmonic generation (SHG) that is doubly resonant at the broad C spectral feature of the transition metal dichalcogenide.