Abstract
We propose a mechanism of broadband asymmetric acoustic transmission in a straight open duct, by breaking spatial symmetry using two geometrically-asymmetric components filled with natural material placed on two sides of duct. Thanks to low loss and dispersion of natural material, the resulting device enables high-efficiency and ultra-broadband transmission for plane waves coming from one port while maintaining an open passage for light, heat and background fluid. Our design with simplicity, ultra-lightweight, optical and thermal transparency and ventilating functionality opens up possibility for novel acoustic one-way devices and may have potential in diverse applications such as duct noise control.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
