Vista 75

The Vista 75 from Molecular Vista is a compact benchtop PiFM (Photo-induced Force Microscopy) instrument that simultaneously acquires AFM topography and infrared chemical imaging at nanometer spatial resolution, far beyond the diffraction limit of conventional IR microscopy.

PiFM principle:
– IR laser illuminates the tip-sample junction
– IR absorption induces photoinduced forces at the nanoscale
– AFM cantilever detects these forces at mechanical resonance
– Result: IR spectra and chemical maps with ~10 nm resolution

Spectral capabilities:
– Range: 500-4000 cm-1 (full mid-IR fingerprint region)
– Compatible with OPO and QCL laser sources
– Hyperspectral: point spectra or full wavenumber chemical maps
– Detects monolayers and sub-10 nm domains

Sample types:
– Polymer blends and multilayer films (domain mapping)
– 2D materials: graphene, MoS2, h-BN
– Semiconductor nanowires and quantum dots
– Biological membranes and protein aggregates
– Pharmaceutical API distribution

Instrument:
– Benchtop: fits on standard optical or vibration isolation table
– Inverted geometry: bottom illumination through transparent substrate
– Atmosphere: ambient, N2 purge, or controlled environment

NewRoad provides Molecular Vista Vista 75 in Israel.