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Metamaterials, some drawn some not.Boris Kuhlmey
10/8/12
Natural atom
“Meta”-atom
HB r0ED r 0
Metamaterials
= 1+e ce =
Optical properties from structure, not composition
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
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 mm IR, visible <1mm
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
Drawn Metamaterials: Concept
6
Macroscopicpreform
Metamaterial
cm
mm
Tailored (negative) electric permittivity
PMMA & indium
Tailored (negative) magnetic permability
500mm
Drawn Metamaterials: Nano?Click icon to add picture
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
metal
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 MTMMTMmetal
IS Maksymov, I Staude et al
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 atANU, Swinburne, RMIT…+ overseas collaborations
Thank you