Virsa™ Raman analyser
The world's only Raman system with remote probes capable of automatic focus-tracking.
Using our LiveTrack™ focus-tracking technology and Monitor™ software, the Virsa system can easily perform real-time analysis on samples that have irregular surfaces, are changing shape as they undergo phase changes, and that move, such as those on production lines.
Capabilities
- High performance portable fibre coupled Raman system
- High spatial resolution x/y <1 µm, z <2 µm
- Live white light sample viewing for accurate sample targeting
- Motorised x/y/z stack that enables accurate objective positioning for single point or mapping purposes
- Work with objective lens pointing downwards or horizontally
Flexibilty
This versatile system has a modest footprint measuring just 543 mm x 436 mm x 178 mm. It can be used on a bench or mounted in an industry-standard 19" rack. This makes it ideal for researchers wanting to expand the application of Raman beyond traditional laboratory-based microscope systems.
LiveTrack technology
The Virsa system uses fibre-optic probes enabling you to analyse large, uneven, moving, or chemically-changing samples. The probes incorporate Renishaw's LiveTrack focus-tracking technology which automatically keeps samples in focus, ensuring you get high-quality Raman data.
Monitor software
The Virsa system's software incorporates reaction monitoring allowing you to capture, analyse, and display data dynamically and in real time as it makes measurements at up to 8 times per second. This makes it especially suited for routine measurements on complex samples or processes.
Applications
Coatings
Large, curved samples are a particular challenge for Raman analysis. LiveTrack focus-tracking is ideal for analysing complex surfaces such as this blade from a gas turbine engine. We were able to accurately measure the uniformity of the zirconia coating which prevents oxidation and corrosion.
Nanotechnology
In this example we analysed a graphene film grown on a copper foil substrate, such as is used for reel-to-reel graphene production. Graphene, being so thin, needs an efficient high-aperture lens for Raman analysis. Our results revealed the topography of the copper and the non-uniform distribution of the graphene.
Specifications
Feature | As standard | Optional |
| Excitation wavelength - 532 nm | 660 nm | 785 nm | ✓ Choose one or two wavelengths | |
Virsa fibre-optic probes:
| ✓ At least one probe included as standard | |
| 5 m fibre-optic cabling | ✓ | Additional lengths available |
| Objective lens | ✓ One lens provided | Additional lenses available |
| Laptop with Renishaw's Windows-based Raman environment (WiRE) software | ✓ | |
| Raman Assist - Online training modules | ✓ | |
| Raman Assist - Installation, training and support | ✓ | |
| Service level agreement | ✓ | |
| Immersion probes | ✓ | |
| Video viewer (through-lens direct sample viewing) | ✓ | |
| SB200 computer controlled, three-axis probe positioner | ✓ | |
| Probe objective turret (for easy switching between multiple objective lenses) | ✓ | |
| Spectral databases for identifying unknown materials | ✓ | |
| Advanced data analysis modules | ✓ |
Want to find out more?
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Downloads: Virsa Raman Analyser
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Brochure: Virsa Raman analyser brochure
The Virsa™ Raman analyser is a transportable Raman system with fibre-optic-coupled probes. It is suitable for both micro and macro Raman analyses.
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Application note: Analysis of polymer fibres using the Virsa™ Raman analyser
Application note detailing how the Virsa Raman analyser can be used to analyse polymer fibres.
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Application note: Combining the Virsa™ Raman analyser with other analytical tools
Details of how the Virsa analyser can be combined with other analytical tools, with thermography measurements as an example.
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Application note: Virsa Raman analyser for in vivo studies
The Virsa™ Raman analyser is ideal for developing clinical applications of Raman spectroscopy. It is available with a clinically-ready fibre-optic probe developed in partnership with EmVision, leaders in medical fibre probes.
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Application note: Analysing catalytic powders with the Virsa™ Raman analyser
Application note detailing how the Virsa Raman analyser can be used to study catalysts, with vanadium oxide as an example.
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Application note: Analysing liquids with the Virsa™ Raman analyser
Application note showing how easy it is to analyse liquids with the Virsa Raman analyser
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Application note: Analysing industrial coatings with the Virsa™ Raman analyser
How the Virsa analyser can be used to study industrial coatings, such as thermal barrier coatings.
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Application note: Reaction monitoring with the Virsa™ Raman analyser
In this application note, we demonstrate the monitoring of fermentation of glucose to ethanol and carbon dioxide by yeast in real time, using the Virsa™ Raman analyser.
Compliance
Class 3B1 laser product
1As defined by IEC 60825-1:2014