Storage-Recovery Phenomenon in Magnonic Crystal

被引：77
作者：
Chumak, A. V. [1 ,2 ]
Vasyuchka, V. I. [1 ,2 ]
Serga, A. A. [1 ,2 ]
Kostylev, M. P. [3 ]
Tiberkevich, V. S. [4 ]
Hillebrands, B. [1 ,2 ]
机构：
[1] Tech Univ Kaiserslautern, Fachbereich Phys, D-67663 Kaiserslautern, Germany
[2] Tech Univ Kaiserslautern, Forschungszentrum OPTIMAS, D-67663 Kaiserslautern, Germany
[3] Univ Western Australia, Sch Phys, Crawley, WA 6009, Australia
[4] Oakland Univ, Dept Phys, Rochester, MI 48309 USA
来源：
PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 25期
基金：
澳大利亚研究理事会;
关键词：
SLOW LIGHT; REVERSAL; WAVES;
D O I：
10.1103/PhysRevLett.108.257207
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The phenomenon of coherent wave trapping and restoration is demonstrated experimentally in a magnonic crystal. Unlike the conventional scheme used in photonics, the trapping occurs not due to the deceleration of the incident wave when it enters the periodic structure but due to excitation of the quasinormal modes of the artificial crystal. This excitation occurs at the group velocity minima of the decelerated wave in narrow frequency regions near the edges of the band gaps of the crystal. The restoration of the traveling wave is implemented by means of phase-sensitive parametric amplification of the stored mode.
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页数：5
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