Isolation effect in ferromagnetic-metal/semiconductor hybrid optical waveguide

Zayets, V.; Ando, K.
June 2005
Applied Physics Letters;6/27/2005, Vol. 86 Issue 26, p261105
Academic Journal
The isolation effect in a ferromagnetic-metal/semiconductor hybrid optical waveguide was experimentally studied. Optical transmission in a Ga1-xAlxAs waveguide covered by Co was found to depend on the magnetization of the Co. The isolation direction was different for a waveguide with a SiO2 buffer layer and for a waveguide with a Ga1-xAlxAs buffer layer used between the waveguide core layer and Co layer. The physical origin of the isolation in this isolator structure was clarified.


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