The verTera extension is offered in three different versions that access different spectral regimes but all achieving the same unique spectral resolution of better than 0.0007 cm-1 (20 MHz). An overview about existing versions is given in the table below. The spectral range above the given upper limit can be covered without gap by the FTIR mode of the VERTEX 80v using room temperature components.
Bolometers are well-proven high sensitivity THz detectors down to
5 cm-1
but the required liquid Helium adds costs, demands expertise and is in
some regions not available at all. Alternative dry e.g. pulse tube
cooled bolometers are rather costly, may cause harmful vibrations and
require several hours cool down time. The verTera extension is ready at
the push of a button, creates no nameable operation costs and can
achieve a superior lower spectral limit and resolution.
| Version | Spectral Range | Spectral Resolution |
| verTera-B | 3 to 40 cm-1 (90 GHz to 1.2 THz) | <0.0007 cm-1 (< 20 MHz) |
| verTera-BM | 13 to 50 cm-1 (0.4 to 1.2 THz) | <0.0007 cm-1 (< 20 MHz) |
| verTera-BS | 27 to 60 cm-1 (0.8 to 1.2 THz) | <0.0007 cm-1 (< 20 MHz) |
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