Cavity magnomechanics

被引：562
作者：
Zhang, Xufeng [1 ]
Zou, Chang-Ling [1 ,2 ]
Jiang, Liang [2 ]
Tang, Hong X. [1 ,2 ]
机构：
[1] Yale Univ, Dept Elect Engn, New Haven, CT 06511 USA
[2] Yale Univ, Dept Appl Phys, New Haven, CT 06511 USA
来源：
SCIENCE ADVANCES | 2016年 / 2卷 / 03期
关键词：
MICROWAVE; WAVES; AMPLIFICATION; TRANSPARENCY; CONVERSION; RESONANCE; MAGNON;
D O I：
10.1126/sciadv.1501286
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
A dielectric body couples with electromagnetic fields through radiation pressure and electrostrictive forces, which mediate phonon-photon coupling in cavity optomechanics. In a magnetic medium, according to the Korteweg-Helmholtz formula, which describes the electromagnetic force density acting on a medium, magneostrictive forces should arise and lead to phonon-magnon interaction. We report such a coupled phonon-magnon system based on ferrimagnetic spheres, which we term as cavity magnomechanics, by analogy to cavity optomechanics. Coherent phonon-magnon interactions, including electromagnetically induced transparency and absorption, are demonstrated. Because of the strong hybridization of magnon and microwave photon modes and their high tunability, our platform exhibits new features including parametric amplification of magnons and phonons, triple-resonant photon-magnon-phonon coupling, and phonon lasing. Our work demonstrates the fundamental principle of cavity magnomechanics and its application as a new information transduction platform based on coherent coupling between photons, phonons, and magnons.
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页数：7
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