Conformal transformation for optical black hole (OBH) cavity. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Conformal transformation for optical black hole (OBH) cavity.

Caption

Mapping the homogeneous refractive index distribution in the original straight space (a) to a circular OBH cavity (b) with gradient index. The core region of OBH cavity is truncated as homogeneous index. The quadrupole cavity (c1) and peanut-like cavity (c2) is transformed from the circular OBH cavity under different structural parameters.

Credit

by Qingtao Ba, Yangyang Zhou, Jue Li, Wen Xiao, Longfang Ye, Yineng Liu, Jin-hui Chen and Huanyang Chen

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License

CC BY

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