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sSNOM of Graphene: fast imaging ofplasmons~140nm• 10Hz image obtained injust 60s• No significant loss ofspatial resolution1Hz 4Hz 10HzsSNOM on a Bruker AFMis fast without any loss inresolution6/27/13 Bruker Nano Surfaces30
How important is the spatial frequency forGraphene plasmonics?Dull Tip = low k || Fresh Tip = large k ||k ∥,max < k SPk ∥,max ~k SPSharper tips have larger in-plane momenta – a necessity for plasmonics6/27/13 Bruker Nano Surfaces31
Page 1: Beating the Diffraction limit by 10
Page 4 and 5: Why Infrared sSNOM at the Nanoscale
Page 6 and 7: Just how big is a 1000X improvement
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 32: Conclusion• Near field imaging wi

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