Optical Isolator Utilizing Surface Plasmons

Materials

Vadym Zayets¹  Hidekazu Saito²  Koji Ando² 

[1] Spintronic Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Umezono 1-1-1, Tsukuba, Ibaraki, 305-8568, Japan;

关键词: optical isolator;    surface plasmons;    magneto-optical effect;   

DOI  :  10.3390/ma5050857

来源: mdpi

【 摘 要 】

Feasibility of usage of surface plasmons in a new design of an integrated optical isolator has been studied. In the case of surface plasmons propagating at a boundary between a transition metal and a double-layer dielectric, there is a significant difference of optical loss for surface plasmons propagating in opposite directions. Utilizing this structure, it is feasible to fabricate a competitive plasmonic isolator, which benefits from a broad wavelength operational bandwidth and a good technological compatibility for integration into the Photonic Integrated Circuits (PIC). The linear dispersion relation was derived for plasmons propagating in a multilayer magneto-optical slab.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.