Polarization-independent absorption enhancement in a graphene square array with a cascaded grating structure

Wu, J.

doi:10.1107/S1600577517017143

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Figure 4
Electromagnetic field intensity distributions for TM polarization. (a) |E_z|² in the graphene plane, (b) |E_x|² in the graphene plane, (c) |H_y|² in the y = 0 plane (xz plane), (d) |E_x|² in the y = 0 plane and (e) |E_z|² in the y = 0 plane. In panels (a) and (b), the region enclosed by the white dashed line is the graphene square array. In panels (c)–(e), the regions denoted by the white dashed lines are the silicon square array and the two-dimensional multilayer grating, while the black dashed lines indicate the graphene square array due to its ultrathin nature.

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 25| Part 2| March 2018| Pages 419-424

https://doi.org/10.1107/S1600577517017143

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