Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/88418
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Mechanical Engineering | en_US |
dc.contributor | College of Professional and Continuing Education | en_US |
dc.creator | Liu, T | en_US |
dc.creator | Ma, G | en_US |
dc.creator | Liang, S | en_US |
dc.creator | Gao, H | en_US |
dc.creator | Gu, Z | en_US |
dc.creator | An, S | en_US |
dc.creator | Zhu, J | en_US |
dc.date.accessioned | 2020-11-09T06:47:23Z | - |
dc.date.available | 2020-11-09T06:47:23Z | - |
dc.identifier.issn | 2469-9950 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/88418 | - |
dc.language.iso | en | en_US |
dc.publisher | American Physical Society | en_US |
dc.rights | ©2020 American Physical Society | en_US |
dc.rights | The following publication Liu, T., Ma, G., Liang, S., Gao, H., Gu, Z., An, S., & Zhu, J. (2020). Single-sided acoustic beam splitting based on parity-time symmetry. Physical Review B, 102(1), 014306, 014306-1-014306-8 is available at https://dx.doi.org/10.1103/PhysRevB.102.014306 | en_US |
dc.title | Single-sided acoustic beam splitting based on parity-time symmetry | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 014306-1 | en_US |
dc.identifier.epage | 014306-8 | en_US |
dc.identifier.volume | 102 | en_US |
dc.identifier.issue | 1 | en_US |
dc.identifier.doi | 10.1103/PhysRevB.102.014306 | en_US |
dcterms.abstract | Unidirectional reflectionless resonance observed in parity-time-symmetric systems suggests a promising strategy to produce extremely asymmetric scattering. Inspired by such a unique feature, we propose a single-sided acoustic beam splitter that splits sound incident from a specific side but is totally transparent for sound incident from the opposite side. The unidirectional response is due to a parity-time-symmetric refractive index distribution. At the exceptional point when the real-part index and gain/loss modulations are balanced, it interacts with obliquely incident waves in a single-sided manner. In addition, by engineering the sidewall boundaries within an acoustic waveguide, we provide a general approach for obtaining the required complex refractive index, in which we show that the resistive or reactive component of the sidewall impedance can independently modulate the gain/loss or the real-part index. Based on this, a planar waveguide implementation of the single-sided acoustic beam splitter is demonstrated. Our study presents opportunities enabled by exploiting parity-time-symmetric systems in a higher-dimensional space and could find applications such as sensing and communication in a wide range of wave systems including but not limited to acoustics. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Physical review B : covering condensed matter and materials physics, 1 July 2020, v. 102, no. 1, 014306, p. 014306-1-014306-8 | en_US |
dcterms.isPartOf | Physical review B : covering condensed matter and materials physics | en_US |
dcterms.issued | 2020-07-01 | - |
dc.identifier.scopus | 2-s2.0-85088691172 | - |
dc.identifier.eissn | 2469-9969 | en_US |
dc.identifier.artn | 14306 | en_US |
dc.description.validate | 202011 bcrc | en_US |
dc.description.oa | Version of Record | en_US |
dc.identifier.FolderNumber | a0816-n08, a0837-n07, OA_Scopus/WOS | en_US |
dc.identifier.SubFormID | 2032, 2014 | - |
dc.description.fundingSource | RGC | en_US |
dc.description.fundingText | C6013-18G | en_US |
dc.description.pubStatus | Published | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2014_PhysRevB.102.014306.pdf | 2.93 MB | Adobe PDF | View/Open |
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