Metamaterials: Negative refractive index in ... - Theory.nipne.ro

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8. CommentsTo start the <strong>in</strong>volvement <strong>in</strong> the MTM field implies simultaneously tackl<strong>in</strong>g:1. <strong>Theory</strong>- Understand<strong>in</strong>g specific phenomena <strong>in</strong>volved- Design of structures behav<strong>in</strong>g as MTM- Simulations- Develop<strong>in</strong>g new ideas2. Technology- Obta<strong>in</strong><strong>in</strong>g the designed structures (various techniques for micro- andnano- structur<strong>in</strong>g)3. <strong>Theory</strong> and experiments- Measurement of physical parameters of <strong>in</strong>terest (n, transmission bands, etc)ASTiGMAT
9. Conclusion- MTM is a fasc<strong>in</strong>at<strong>in</strong>g "new" field, with > 100 years of theoretical historyand about 10 years of practical experiments Physics, eng<strong>in</strong>eer<strong>in</strong>g.Mother Nature designed PhC and perhaps also MTM much earlier.- Periodic structures <strong>in</strong> different materials give rise to new, unexpectedbehavior, desired or not, <strong>in</strong> the microwave, THz, and optical spectrum.- MTM and PhC are complementary, and sometimes <strong>in</strong>tertw<strong>in</strong><strong>in</strong>g concepts.The difference consists <strong>in</strong> the scale of spatial periodicity versus λ.- Many microwave applications use already MTM concepts.- Major expected applications:Super-resolution opticsCloak<strong>in</strong>g at microwave and optical frequencies- The dynamics of the field is fast and the money <strong>in</strong>volved is huge.ASTiGMAT
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IFIN_Theor_Phys_Dept_111810
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1. GoalIntroduction to the field of
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Metamaterials and
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More definitionsMe
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Founders of the modern metamaterial
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Pendry’s structures to obta<stron
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Examples of "old" resultsWire media
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Specially dedicated journal- <stron
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Metamorphose-organized conferences
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3. MetaPhysics of metamaterials: Ho
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Electromagnetic field spectrum≈ 8
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3.2. Definition of
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3.4. Examples of Pendry periodical
Page 27 and 28: Effective relative magnetic permeab
Page 29 and 30: Idealized hypotheses (in</s
Page 31 and 32: Generalized cell for NRI-transmissi
Page 33 and 34: 4.1. Negative refr
Page 35 and 36: 4.2. Behavior of convex and concave
Page 37 and 38: 4.4. Goos-Hänchen shift (effect)-
Page 39 and 40: "Ideal lens" - simplified descripti
Page 41 and 42: Partial conclusion and comments- On
Page 43 and 44: First experiments (2000-2001)1-D Me
Page 45 and 46: First experimentsNegative</
Page 47 and 48: Progress, microwavesExperiment to v
Page 49 and 50: Progress: from microwaves toward op
Page 55 and 56: Progress: near inf
Page 57 and 58: Progress: visible (2007)ASTiGMAT
Page 59 and 60: Swiss cross configuration (2009)New
Page 61 and 62: Mother Nature and PhCQuasi-periodic
Page 63 and 64: 7. High-interest p
Page 65 and 66: Another slab (Veselago-Pendry-type)
Page 67 and 68: 7.1. Toward imagin
Page 69 and 70: Example of partial camouflage, obta
Page 71 and 72: Total invisibility
Page 73 and 74: Results: invisibil
Page 75 and 76: New (2008) cloakin
Page 77: New (2009) reported cloakin
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