发明名称 |
Magnetic-free non-reciprocal devices exhibiting non-reciprocity through angular momentum biasing |
摘要 |
A non-reciprocal device incorporating metamaterials which exhibit non-reciprocity through angular momentum biasing. The metamaterial, such as a ring resonator, is angular-momentum biased. This is achieved by applying a suitable mechanical or spatio-temporal modulation to resonant inclusions of the metamaterial, thereby producing strong non-reciprocity. In this manner, non-reciprocity can be produced without requiring the use of large and bulky magnets to produce a static magnetic field. The metamaterials of the present invention can be realized by semiconducting and/or metallic materials which are widely used in integrated circuit technology, and therefore, contrary to magneto-optical materials, can be easily integrated into the non-reciprocal devices and large microwave or optical systems. The metamaterials of the present invention can be compact at various frequencies due to the enhanced wave-matter interaction in the constituent resonant inclusions. Additionally, by using the metamaterials of the present invention, the power consumed in the biasing network is drastically reduced. |
申请公布号 |
US9405136(B2) |
申请公布日期 |
2016.08.02 |
申请号 |
US201414296874 |
申请日期 |
2014.06.05 |
申请人 |
Board of Regents, The University of Texas System |
发明人 |
Alu Andrea;Sounas Dimitrios;Estep Nicholas |
分类号 |
G02F1/01;G02F1/095 |
主分类号 |
G02F1/01 |
代理机构 |
Winstead, P.C. |
代理人 |
Voigt, Jr. Robert A.;Winstead, P.C. |
主权项 |
1. A non-reciprocal device comprising:
a ring of three or more resonators coupled together, wherein each of said three or more resonators is modulated in time with a different phase shift with respect to each other and operable at either microwave, light or sound waves. |
地址 |
Austin TX US |