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Giant anisotropic nonlinear optical response in Weyl semimetals
Author(s): Shreyas Patankar; Nityan Nair; James Analytis; Joseph Orenstein; Liang Wu
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Paper Abstract

The response of a material to applied intense radiation is characterized by its nonlinear optical susceptibility. While the conventional microscopic picture of nonlinear optics of materials involves expressions using higher order perturbation theory, recent theoretical studies have established a link between nonlinear optics and geometrical properties of the electronic wavefunction. Weyl semimetals are a recently discovered class of materials with nontrivial band structure geometry. We use optical second harmonic generation to measure the second order nonlinear optical response of Weyl semimetals of the transition metal monopnictide (TMMP) family. We find that the TMMP compounds have the largest measured nonlinear optical susceptibility of any bulk crystalline materials, with a susceptibility nearly an order of magnitude higher than that of other nonlinear optical materials.

Paper Details

Date Published: 22 February 2018
PDF: 9 pages
Proc. SPIE 10530, Ultrafast Phenomena and Nanophotonics XXII, 1053003 (22 February 2018); doi: 10.1117/12.2289394
Show Author Affiliations
Shreyas Patankar, Univ. of California, Berkeley (United States)
Lawrence Berkeley National Lab. (United States)
Nityan Nair, Univ. of California, Berkeley (United States)
James Analytis, Univ. of California, Berkeley (United States)
Lawrence Berkeley National Lab. (United States)
Joseph Orenstein, Univ. of California, Berkeley (United States)
Lawrence Berkeley National Lab. (United States)
Liang Wu, Univ. of California, Berkeley (United States)
Lawrence Berkeley National Lab. (United States)
Univ. of Pennsylvania (United States)


Published in SPIE Proceedings Vol. 10530:
Ultrafast Phenomena and Nanophotonics XXII
Markus Betz; Abdulhakem Y. Elezzabi, Editor(s)

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