title: Subsurface Raman imaging with nanoscale resolution.
abstract: We report on chemically specific, subsurface imaging with high spatial resolution. Using tip-enhanced Raman spectroscopy, we probe carbon nanotubes buried beneath a host dielectric media. We demonstrate our ability to map and resolve specific vibrational modes with 30 nm spatial resolution for dielectric layers with different thicknesses.
authors.affiliation: The Institute of Optics, University of Rochester, Rochester, New York 14627, USA.
authors.forename: Neil
authors.initials: N
authors.lastname: Anderson
authors.forename: Pascal
authors.initials: P
authors.lastname: Anger
authors.forename: Achim
authors.initials: A
authors.lastname: Hartschuh
authors.forename: Lukas
authors.initials: L
authors.lastname: Novotny
mesh_terms: D008422:Materials Testing / Q000295:instrumentation / Q000379:methods*; D036103:Nanotechnology / Q000295:instrumentation / Q000379:methods*; D037742:Nanotubes, Carbon / Q000032:analysis* / Q000737:chemistry / Q000648:ultrastructure*; D012680:Sensitivity and Specificity; D013059:Spectrum Analysis, Raman / Q000295:instrumentation / Q000379:methods*; D013499:Surface Properties; D014159:Transducers
chemical_list: D037742:Nanotubes, Carbon