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1ARIADNA Final Presentation Study 7001/01,June 2008

Prospection of

Invisibility DevicesInvisibility Devicesfor SpaceARIADNA

Final PresentationStudy 07/7001

ARIADNA

Final PresentationStudy 07/7001

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2ARIADNA Final Presentation Study 7001/01,June 2008

Hot topics in optics

POVRAY generated (G. Dolling et al. Opt. Expr. 14, 1842 (2006)

Negative refractive materials

Potential applicationsPerfect lenses

Miniaturized optical resonators

Phase compensators

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3ARIADNA Final Presentation Study 7001/01,June 2008

Hot topics in opticsTransformation optics

Originated for designing adaptive grids

Possible devices

Perfect lens

L. Bergamin, Metamaterials (2008)

Invisibility Cloak

J. Zhang, PRB 77 35116 (2008)

Hyperlens

C. Croenne, NJP (2008)

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4/104ARIADNA Final Presentation Study 7001/01,June 2008

Hot topics in opticsTransformation optics

x x0

Potent ial for designing of optical devices

Possible devices

Perfect lens

L. Bergamin, Metamaterials (2008)

Invisibility Cloak

J. Zhang, PRB 77 35116 (2008)

Hyperlens

C. Croenne, NJP (2008)

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5/105ARIADNA Final Presentation Study 7001/01,June 2008

Hot topics in opticsOptical Nanocircuits

Subwavelength nanoparticlesas lump circuits

N. Engheta, Science 317 1698 (2007)

Example of technology transfer

Yagi-Uda RF Antenna

Reflector Source

Directors

Lumpedelements

Nanoparticles

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6/106ARIADNA Final Presentation Study 7001/01,June 2008

Why are they Hot?Negative refraction: Schuster(1904), Veselago (1968)

Geometrical interp. of : Post (1965), Landau Lifshitz (1951)

Proposals require

extremematerial conditions

METAMATERIALS

Available for from GHz to ???

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7/107ARIADNA Final Presentation Study 7001/01,June 2008

Technological evolution of artificial

8/14/2019 Prospection of invisibility devices for space

8/108ARIADNA Final Presentation Study 7001/01,June 2008

Studies performed by Universities + ACTObjective: Design Invisible Devices + route to v isible

1. Device design: distr ibution of effand eff2. Structural design: distribution ofloc and loc

Coordinate Transformation Technique and Dipole Cancellation

Homogenization techniques: Field Summation and Fresnel Inversion

3. Metamaterials Trade-off

Different inclusions: metallic spirals, Ferroelectric rods, trans. lines

4. Space appl ications

Invisibility shutter, solar pressure effect, THz spectroscopy

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9ARIADNA Final Presentation Study 7001/01,June 2008

Birds-eye-view of the Workshop

Coor. TransformationCyl. And Sph. CloaksNon-orthogonal transf.

Coor. TransformationTHz applicationsFerroelectrics rodsHyper-lens

Dipole canc.Finite Cyl. CoverMetallic spirals

Radiation pressure

Coor. TransformationChiral particlesTransmission lines

Inv isibility shutter

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10ARIADNA Final Presentation Study 7001/01,June 2008

Thank you for your attention!