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Metamaterials, some drawn some not. Boris Kuhlmey 10/8/12
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Natural atom “Meta”-atom Metamaterials e Optical properties from structure, not composition
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Metamaterials - applications –Transform optics: Cloaking and invisibility Deception optics GRIN devices/Perfect lenses/flat lenses also for antennas –Filtering eg ultra-thin filters –Subwavelength confinement –Super resolution (super/hyper lenses) –DOS manipulation and emitter/antenna design –Slow light, funky phase matching –Sensing
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Meta-atoms D. Wu et al., APL 83, 201 (2009)N. Liu et al., Nature Mat. 7, 31 (2008) D. R. Smith et al., PRL 84, 4184 (2000) Radio/Microwave: cm THz: 10’s mIR, visible <1 m
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Metamaterials 1.Drawn metamaterials A. Tuniz, R. Lwin, S. Atakaramians, S. Fleming, A. Argyros, B. Kuhlmey – DP12 2.CUDOS integrated metamaterials and plasmonic projects CUDOS@Sydney + RMIT, ANU, Swinburne, Macquarie
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Drawn Metamaterials: Concept 6 Macroscopic preform Metamaterial cm mm Tailored (negative) electric permittivity PMMA & indium Tailored (negative) magnetic permability m
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Drawn Metamaterials: Nano? Rayleigh Plateau instability Ebendorff-Heidepriem et al., OECC/ACOFT (2009) H. Tyagi et al., Opt. Lett. 35, 2573 (2010) E. Badinter et al., Mat. Lett. 64, 1902 (2010) ~30nm Scalable technique to produce large quantities of nanostructured materials Scalable technique to produce large quantities of nanostructured materials
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CUDOS integrated metamaterials project Use metamaterials on photonic chip Single meta atoms/plasmonic devices UC Berkley M. Fevrier et al Opt. Eexpress 20, 17403 MTM IS Maksymov, I Staude et al
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Metamaterial fabrication Typical dimensions:<<300nm Thin film deposition (Metal/SC/dielectric/MOx) e-beam lithography RIE FIB nano-imprint lithography Two photon polymerization, laser direct writing Theory: Usyd, ANU, Macquarie Fabrication: CUDOS nodes at ANU, Swinburne, RMIT… + overseas collaborations
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