Materials 2012, 5(5), 857-871; doi:10.3390/ma5050857

Optical Isolator Utilizing Surface Plasmons

Spintronic Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Umezono 1-1-1, Tsukuba, Ibaraki, 305-8568, Japan
* Author to whom correspondence should be addressed.
Received: 30 March 2012; in revised form: 9 May 2012 / Accepted: 9 May 2012 / Published: 16 May 2012
(This article belongs to the Special Issue Photonic Materials and Applications)
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Abstract: 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.
Keywords: optical isolator; surface plasmons; magneto-optical effect

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MDPI and ACS Style

Zayets, V.; Saito, H.; Ando, K.; Yuasa, S. Optical Isolator Utilizing Surface Plasmons. Materials 2012, 5, 857-871.

AMA Style

Zayets V, Saito H, Ando K, Yuasa S. Optical Isolator Utilizing Surface Plasmons. Materials. 2012; 5(5):857-871.

Chicago/Turabian Style

Zayets, Vadym; Saito, Hidekazu; Ando, Koji; Yuasa, Shinji. 2012. "Optical Isolator Utilizing Surface Plasmons." Materials 5, no. 5: 857-871.

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