phase effect
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2021 ◽  
Vol 240 ◽  
pp. 109918
Author(s):  
Guoshou Zhao ◽  
Linlin Cao ◽  
Rui Wu ◽  
Ning Liang ◽  
Dazhuan Wu


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Shubo Wang ◽  
Guanqing Zhang ◽  
Xulong Wang ◽  
Qing Tong ◽  
Jensen Li ◽  
...  

AbstractSpin-orbit interactions (SOIs) endow light with intriguing properties and applications such as photonic spin-Hall effects and spin-dependent vortex generations. However, it is counterintuitive that SOIs can exist for sound, which is a longitudinal wave that carries no intrinsic spin. Here, we theoretically and experimentally demonstrate that airborne sound can possess artificial transversality in an acoustic micropolar metamaterial and thus carry both spin and orbital angular momentum. This enables the realization of acoustic SOIs with rich phenomena beyond those in conventional acoustic systems. We demonstrate that acoustic activity of the metamaterial can induce coupling between the spin and linear crystal momentum k, which leads to negative refraction of the transverse sound. In addition, we show that the scattering of the transverse sound by a dipole particle can generate spin-dependent acoustic vortices via the geometric phase effect. The acoustic SOIs can provide new perspectives and functionalities for sound manipulations beyond the conventional scalar degree of freedom and may open an avenue to the development of spin-orbit acoustics.



2021 ◽  
Author(s):  
Jiahao Huang ◽  
Ruimeng Zhang ◽  
Yicong Wang ◽  
Zebin Su ◽  
Xiao-Yun Yan ◽  
...  


Author(s):  
Chang Liu ◽  
Qing Wang ◽  
Bin Han ◽  
Junhua Luan ◽  
Ji-Jung Kai ◽  
...  


2021 ◽  
Vol 341 ◽  
pp. 128155
Author(s):  
Andresa Gomes ◽  
Ana Letícia Rodrigues Costa ◽  
Dayane Dias Cardoso ◽  
Grazielle Náthia-Neves ◽  
M. Angela A. Meireles ◽  
...  


2021 ◽  
Vol 231 ◽  
pp. 116311
Author(s):  
Peng Zheng ◽  
Chengkun Xiao ◽  
Zhengkai Cao ◽  
Yu Shi ◽  
Gang Wang ◽  
...  


2020 ◽  
Vol 102 (24) ◽  
Author(s):  
Xiao-Xiao Zhang ◽  
Naoto Nagaosa


Author(s):  
Gareoung Kim ◽  
Dogyun Byeon ◽  
Saurabh Singh ◽  
Keisuke Hirata ◽  
Seongho Choi ◽  
...  




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