Exceptional points(EPs),singularities of non-Hermitian systems,often exhibit exotic behaviors by engineering the balance between the system gain and loss.Now,EPs have been demonstrated to enable unidirectional perfect absorption/reflection at the visible light spectrum.
Wenjie Wan
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State Key Laboratory of Advanced Optical Communication Systems and Networks,University of Michigan-Shanghai Jiao Tong University Joint Institute,Shanghai Jiao Tong University,Shanghai 200240,China
Department of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240,China
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