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Just how big is a 1000X improvement inresolution?Far field IR imagePaintNear field IR imageStitchingmaterialGrassBall1000XzoomSoilcompound IR can ID main features of thesoccer field× Resolution is limited Nanoscale IR can ID themost subtle features Resolution is 1000X betterTo make this transition we need to beat the diffraction limit6/27/13 Bruker Nano Surfaces5
Resolution limit in Far field opticsFar field imaging system:zxk ⊥k ∥We sample the object usingplane waves:2π/k ∥λk ||2π/λ = k ∥ 2 + k ⊥2Lensk ∥,max = 2π sin θ/λθkNyquistSampled dd min = λ2sin θTwo objectsto resolveFar field optics limits IR resolution to λ , or several μm6/27/13 Bruker Nano Surfaces6
Page 1: Beating the Diffraction limit by 10
Page 4 and 5: Why Infrared sSNOM at the Nanoscale
Page 8 and 9: Resolution limit in near field opti
Page 10 and 11: Optical contrast in sSNOM for 3D an
Page 12 and 13: How the near field light (E nf ) is
Page 14 and 15: sSNOM results from customers:implem
Page 16 and 17: University of Toronto - Prof. Walke
Page 18 and 19: IntroductionGraphene Discovery, wit
Page 20 and 21: Infrared study of Graphene: rich sp
Page 22 and 23: Let’s probe Graphene’s universa
Page 24 and 25: Colocalized SPM investigation ofGra
Page 26 and 27: sSNOM in universal conductivity reg
Page 28 and 29: Now let’s switch to the plasmonic
Page 30 and 31: sSNOM of Graphene: fast imaging ofp
Page 32: Conclusion• Near field imaging wi

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