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Molecular Vista “Vista 75” AFM-IR instrument
Combining AFM with IR (AFM-IR) spectroscopy
Vista 75 has been made more compact. With a completely new acoustic enclosure, Vista 75 now takes up over 60% less space than Vista One. Easy sample access and a one-handed AFM head clamp make tip and sample exchanges a breeze. The lightweight removable enclosure and open design make optical alignments easy.
Offering the highest resolution nanoscale chemical analysis instruments available.
- Sub-5 nm IR spatial resolution
- Unique chemical identification capability
Features
- Quick-change optics
- Pre-aligned optics make switching between PiFM + PiF-IR, s-SNOM, and Raman effortless
- Self-contained system
- No need for a special environment. Vista 75 is complete with built in vibration isolation, and a temperature controlled acoustic enclosure with dry air.
- Ultimate spectro-nanoscopy
- Photo-induced force microscopy (PiFM) and Photoinduced force infrared (PiF-IR) spectroscopy are the leading nano-IR techniques.
- 75 mm sample stage travel
- Sample size no longer matters. If it fits on the stage, Vista 75 can provide results.
- Exceptional AFM performance
- With an 80 µm (optional 100 µm) xy-scanner and a dual z feedback system, our AFM is top notch.
- Dynamic laser control
- The optical multiplexer handles alignments, polarisation, and normalisation automatically for effortless laser control.
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Specifications
| Stage and scanner | Sample stage travel: 75 mm, max sample 140 mm square |
| Scan size: 80 µm × 80 µm. (100 µm × 100 µm optional) | |
| Dual Z Feedback: 12 µm z-scanner with 600 nm fast-z scanner provides both high bandwidth and a large z-range | |
| Functionality | Imaging modes: Non-contact AFM, PiFM, KPFM, FvD (Force vs distance) mapping, Raman, s-SNOM |
| Spectroscopy modes: PiF-IR, FvD, Raman | |
| PiF Laser Options: QCL (770 – 1500 cm−1), OPO/DFG (550 – 2050, 2250 – 4400 cm−1) | |
| Depth probed (IR): 20 nm and bulk | |
| Physical requirements | Table size: 1.2 m × 2.4 m (4 ft × 8 ft) optical breadboard for complete system |
| Enclosure: Less than 13 kg, removable, acoustic insulation, temperature controlled with dry air |
VIDEOS
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APPLICATIONS
Semiconductor
Nano Chemical Characterisation Uncovers Coating Issues for Monolayer Surface Functionalisation
Sub-5 nm IR spatial resolution
PiFM chemical mapping provides unbeatable lateral IR resolution for analysing surface chemistry. An elementary cellulose fibril is embedded in the lignin matrix of a cell wall from spruce wood. Scan dimensions: 150 nm × 150 nm × 10.5 nm.
Polymer
Reverse Engineer a Pre-cooked Rice Package In this application note, IR PiFM is utilised to analyse the cross-section of a packaging material utilised in microwave-compatible ready-to-eat rice products.
Single-molecule level sensitivity
PiF-IR PiF-IR spectra (magenta and green) show the chemical differences on and off these peptoid nano-sheet fragments. PiFM PiFM chemical maps are able to detect peptoid fragments that are only 0.5 nm taller than the surrounding material! Scan dimensions: 500 nm × 500 nm × 1.7 nm.
Nanophotonics
Spectroscopy and Imaging of Optical Near-fields on Plasmonic Nanostructures with UV-vis-NIR PiFM In this application note, returns to one of the original applications and highlights the unique capabilities of visible PiFM for studying plasmonic nanostructures with unprecedented spatial resolution.
Inorganic
AFM-IR-Raman: Using Three Techniques for Better Nano-Chemical Analysis Molecular Vista primarily focuses on photo-induced force microscopy (PiFM). This technique can simultaneously measure the topography with AFM and the surface chemistry through PiFM with a lateral resolution of better than 5 nm. However, these PiFM instruments also support other optical AFM imaging techniques such as Raman spectroscopy (RS) or photoluminescence (PL).
Biological
Nanoscale Chemical Imaging of Soft Biological Tissues MV highlights the capability of PiFM on fixed human skin samples that were penetrated by topically applied dexamethasone and show that there is similarly a good correlation between XAS microscopy and PiFM, with PiFM offering much higher spatial resolution.
