Infrared vibrational nano-spectroscopy based on scattering scanning near-field optical microscopy (s-SNOM) provides intrinsic chemical specificity with nanometer spatial resolution. Here we use incoherent infrared radiation from a 1400 K thermal blackbody emitter for broadband infrared (IR) nano-spectroscopy. With optimized interferometric heterodyne signal amplification we achieve few-monolaye...

A new form of coherent 2D spectroscopy involving a pair of electronic resonances appears to provide several advantages over more established techniques. It can resolve congested peaks and sort them by vibrational quantum number, rotational quantum number, and isotopomer. The high degree of symmetry in the resulting spectra facilitates the ability to assign the quantum numbers and isotopomer for...

The vibrational properties of single-walled carbon nanotubes reflect the. A common characteristic of the Raman spectra in nanotubes and graphite is the.Resonance Raman spectroscopymicroscopy was used to study individualized single-walled carbon nanotubes. SWNTs both in aqueous suspensions as well.The use of Raman spectroscopy to reveal the remarkable structure and the unusual electronic and. Do...

Abstract Recommendations are given concerning the terminology of concepts and methods used in spectroscopy analytical chemistry, covering nuclear magnetic resonance spectroscopy, atomic vibrational spectroscopy.

A review on the mechanisms and characterization methods of molecular electronic transport is presented. Using self-assembled monolayers (SAMs) of alkanethiols in a nanometer scale device structure, tunneling is unambiguously demonstrated as the main conduction mechanism for large bandgap SAMs, exhibiting well-known temperature and length dependencies. Inelastic electron tunneling spectroscopy e...

The first observation of a sharp, structured electronic spectrum for a fluorinated alkyl peroxy radical is reported using the technique of cavity ringdown spectroscopy (CRDS). The T00 value for the Ã2A′ − X̃2A′′ transition of CF3O2 has been determined to be 6656(3) cm−1; values for à state vibrational frequencies have also been determined. Initial kinetic observations on CF3O2 have been carried ...

Quantum state-resolved reactivity measurements probe the role of vibrational symmetry on the vibrational activation of the dissociative chemisorption of CH4 on Pt(111). IR-IR double resonance excitation in a molecular beam is used to prepare CH4 in all three different vibrational symmetry components A1, E, and F2 of the 2ν3 antisymmetric stretch overtone vibration. Methyl dissociation products ...