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Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
Published on: November 21, 2019
Giant magneto-optical orientational effect in plasmonic heterostructures.
V I Belotelov1, D A Bykov, L L Doskolovich
11A. M. Prokhorov General Physics Institute of Russian Academy of Science, Moscow 119991, Russia. Vladimir.Belotelov@gmail.com
Optics Letters
|April 18, 2009
Summary
Investigating magneto-optical properties of perforated heterostructures, this study reveals a magnetization-even effect. This effect is maximized when specific light polarizations excite quasi-waveguided modes in the magnetic layer.
Area of Science:
- Optics and Photonics
- Materials Science
- Condensed Matter Physics
Background:
- Magneto-optical (MO) effects are crucial for optical devices.
- Heterostructures with subwavelength structures offer unique optical properties.
- Understanding light-matter interactions in magnetic materials is key.
Purpose of the Study:
- To investigate the magneto-optical (MO) properties of perforated metallic/magnetic dielectric heterostructures.
- To identify and characterize a magnetization-even MO effect.
- To determine conditions for maximizing this MO effect.
Main Methods:
- Rigorous electromagnetic modeling of heterostructures.
- Analysis of light transmission and reflection under in-plane magnetization.
- Investigation of p-polarized light excitation of quasi-waveguided eigenmodes.
Main Results:
- A magnetization-even MO effect was rigorously modeled.
- The effect depends on the relative change in transmitted/reflected light intensity.
- Maximum effect observed when p-polarized light excites quasi-waveguided modes near TE mode phase velocity.
Conclusions:
- Perforated heterostructures exhibit significant MO properties.
- The identified magnetization-even MO effect is controllable via light polarization and magnetization.
- This research provides insights for designing advanced MO devices.
