10nm spatial resolution chemical imaging and spectroscopy
s-SNOM phase and amplitude images of surface plasmon polariton (SPP) on a graphene wedge. (left) s-SNOM phase with a line cross-section of the SPP standing wave; (right) s-SNOM amplitude. Top image is a 3D view of Phase image (left).
Cross-section through the graphene flake shows sub 10nm resolution optical property imaging.
Highest performance nano FTIR spectroscopy
Highest performance IR SNOM spectroscopy with the most advanced nanoIR laser source available
nano FTIR spectroscopy with integrated DFG, continuum based laser source
Broadband synchrotron light source integration
Multi-chip QCL laser source for spectroscopy and chemical imaging
Ultrafast-broadband scattering SNOM spectroscopy probing molecular vibrational information. Laser interferogram of Polytetrafluoroethylene (PTFE) shows coherent molecular vibration in the form of free-induction decay in time domain (top). The highlighted feature in sample interferogram is due to the beating of symmetric and antisymmetric mode of C-F modes in the resulting the frequency domain (bottom left). Monolayer sensitivity of nano-FTIR is demonstrated on a monolayer pNTP (bottom right). Data courtesy of Prof. Markus Raschke, University of Colorado, Boulder, US
Combine S-SNOM and AFM-IR to create remarkable new data
Complementary AFM-IR and Scattering SNOM images reveal, for the first time, the microscale origins of optical chirality on plasmonics structures.
By accessing both the radiative (s-SNOM) and non-radiative (AFM-IR) information on plasmonics structures, unique and complementary plasmonic properties can be obtained.
Khanikaev et al., Nat. Comm. 7, 12045 (‘16).