title: Absorption spectroscopy and imaging from the visible through mid-infrared with 20 nm resolution.
abstract: Absorption spectroscopy and mapping from visible through mid-IR wavelengths has been achieved with spatial resolution exceeding the limit imposed by diffraction via the photothermal induced resonance technique. Correlated vibrational (chemical), and electronic properties are obtained simultaneously with topography with a wavelength-independent resolution of ≈20 nm using a single laboratory-scale instrument. This marks the highest resolution reported for PTIR, as determined by comparing height and PTIR images, and its first extension to near-IR and visible wavelengths.
authors.affiliation: †Center for Nanoscale Science and Technology, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States.
authors.forename: Aaron M
authors.initials: AM
authors.lastname: Katzenmeyer
authors.affiliation: †Center for Nanoscale Science and Technology, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States.
authors.forename: Glenn
authors.initials: G
authors.lastname: Holland
authors.affiliation: ‡Anasys Instruments, Inc., 325 Chapala Street, Santa Barbara, California 93101, United States.
authors.forename: Kevin
authors.initials: K
authors.lastname: Kjoller
authors.affiliation: †Center for Nanoscale Science and Technology, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States.
authors.forename: Andrea
authors.initials: A
authors.lastname: Centrone
mesh_terms: D036103:Nanotechnology; D061848:Optical Imaging / Q000379:methods*; D019904:Polymethyl Methacrylate / Q000737:chemistry; D013055:Spectrophotometry, Infrared
chemical_list: D019904:Polymethyl Methacrylate