Abstract
A novel magneto-optical (MO) waveguide with a nanoscale air gap (NAG) is presented. By using an NAG, the nonreciprocal phase shift (NPS) of the MO waveguide can be enhanced. A linear transition model is proposed to theoretically explain the NPS of the MO waveguide with the NAG. Simulation result shows that when the NAG thickness is less than , the MO waveguide exhibits an NPS more than four times that of the MO waveguide without the NAG.
© 2010 Optical Society of America
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