title: Ultracompact nonreciprocal optical isolator based on guided resonance in a magneto-optical photonic crystal slab.
abstract: We design an ultracompact optical isolator with normal incident geometry that operates with a bandwidth that is substantial for a device of this size. For operation in a telecommunication wavelength of 1.55 μm, the thickness of the device is less than 1 μm and the device supports an operating bandwidth of 400 GHz over which the minimum contrast ratio exceeds 25 dB. Our design utilizes guided resonance in a photonic crystal slab to enhance magneto-optical effects, and exploits interference effects among multiple resonances to create desired transmission spectral line shapes.
authors: Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, California 94305, USA.
authors: Kejie
authors: K
authors: Fang
authors: Zongfu
authors: Z
authors: Yu
authors: Victor
authors: V
authors: Liu
authors: Shanhui
authors: S
authors: Fan