Tunable and broadband asymmetric sound absorptions with coupling of acoustic bright and dark modes
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2020.115371
Abstract: Abstract We propose a strategy for constructing an asymmetric sound absorber by coupling two mutually tuned dark and bright modes. The subsequent requirement is that the dark mode must be strongly dissipative to consume sound… read more here.
Keywords: asymmetric sound; dark; bright dark; sound ... See more keywords
Ultra-thin subwavelength film sensing through the excitation of dark modes in THz metasurfaces
Sign Up to like & getrecommendations! Published in 2019 at "Optics Communications"
DOI: 10.1016/j.optcom.2019.124366
Abstract: Abstract We demonstrate ultra-subwavelength thin film sensing through experimental and numerical studies of the transmission characteristics of several symmetric and asymmetric planar split ring resonator (SRR) based terahertz metasurfaces coated with thin film of analyte… read more here.
Keywords: subwavelength; film sensing; thin film; dark modes ... See more keywords