Broadband unidirectional invisibility for airborne sound
Sign Up to like & getrecommendations! Published in 2018 at "Applied Physics Letters"
DOI: 10.1063/1.5019771
Abstract: We present a metafluid-based broadband cloak capable of guiding acoustic waves around obstacles along given directions while maintaining the wavefront undisturbed. The required parameter distribution of the proposed cloak is derived by coordinate transformation and… read more here.
Keywords: invisibility airborne; unidirectional invisibility; airborne sound; metafluid ... See more keywords
Exactness of the Born approximation and broadband unidirectional invisibility in two dimensions
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.100.053846
Abstract: Achieving exact unidirectional invisibility in a finite frequency band has been an outstanding problem for many years. We offer a simple solution to this problem in two dimensions that is based on our solution to… read more here.
Keywords: two dimensions; unidirectional invisibility; born approximation; broadband unidirectional ... See more keywords
Subwavelength-Scale 3D Broadband Unidirectional Waveguides Based on Surface Magnetoplasmons at Terahertz Frequencies
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DOI: 10.3390/photonics10050589
Abstract: Unidirectional electromagnetic modes have significant potential for routing electromagnetic radiation and are highly desirable for various applications, such as isolators, splitters, and switches. In this study, we theoretically investigate surface magnetoplasmons (SMPs) in a four-layer… read more here.
Keywords: scale broadband; surface; surface magnetoplasmons; subwavelength scale ... See more keywords