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Bethanie J. H. Stadler AIMD Group Outline Motivation (isolators) Garnet Layer –Fabrication –Characterization Buffer Layers Permanent Magnets Photonic Crystals.

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Presentation on theme: "Bethanie J. H. Stadler AIMD Group Outline Motivation (isolators) Garnet Layer –Fabrication –Characterization Buffer Layers Permanent Magnets Photonic Crystals."— Presentation transcript:

1 Bethanie J. H. Stadler AIMD Group Outline Motivation (isolators) Garnet Layer –Fabrication –Characterization Buffer Layers Permanent Magnets Photonic Crystals

2 Bethanie J. H. Stadler AIMD Group SmCo : RF Sputtering n Demagnetized SmCo bar magnet on 8” Cu disk target n Use confining ring n Fused quartz substrates Ar SiO 2 substrate SmCo Target Confining ring RF Sputter System

3 Bethanie J. H. Stadler AIMD Group XRD of Permanent Magnet Film Majority phase is Sm 2 Co 17

4 Bethanie J. H. Stadler AIMD Group VSM of Permanent Magnet Film Ms: 1177emu/cm 3 Mr: 1024emu/cm 3 Hc: 465Oe Sm 2 Co 17 SmCo 5

5 Bethanie J. H. Stadler AIMD Group Outline Motivation (isolators) Garnet Layer –Fabrication –Characterization Buffer Layers Permanent Magnets Photonic Crystals

6 Bethanie J. H. Stadler AIMD Group Magneto Photonic Crystal Hexagonal Photonic Crystal Array TE Band Gap Point DefectLine Defect

7 Bethanie J. H. Stadler AIMD Group Photonic Crystal Design 1.31  m Band Gap Rod: YIG Background: Air Hole: Air Background: YIG

8 Bethanie J. H. Stadler AIMD Group Beam Propagation (FDTD) Simulation of Photonic Crystals Rod: YIG Background: Air Hole: Air Background: YIG

9 Bethanie J. H. Stadler AIMD Group Nanopore Fabrication Al Pt Electrolyte Stirrer Temperature Bath Aluminum Anodized Aluminum Oxide Self Assembled Nanopores Self Assembled Nanopores in Aluminum Oxide

10 Bethanie J. H. Stadler AIMD Group Nanopore dimension control a=30nm, r=10nm a=100nm, r= 30nm

11 Bethanie J. H. Stadler AIMD Group Bandgap Simulation Bandgap for current pore dimensions corresponds to UV.

12 Bethanie J. H. Stadler AIMD Group Photonic Crystal on YIG Nanopore Mask YIG Air Holes, YIG Background YIG Rods, Air Background

13 Bethanie J. H. Stadler AIMD Group Conclusions Magneto-optics are important to integrated photonics. n YIG: secondary phases & temperature limiting. n MgO buffer layers and SiO 2 claddings successful. n SmCo permanent magnets are well developed. n Photonic Crystals structures simulated and fabrication is begun.

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