Vacuum Ultra Violet Spectroscopy
There are several names given to wavelengths below the Ultra Violet. However, because of the absorption of the air down to few nanometers, and the need to evacuate any part of the environmental
Based on the first VUV instrument in the world designed around a toroïdal aberration corrected grating (LHT30, HORIBA JOBIN YVON patent), the TGM (Toroidal Grating Monochromator) series monochromators covers the whole VUV wavelength range from 10 to 400 nm. The wavelength selection is done by grating rotation, slits remaining fixed which is particularly useful when used as a tunable light source. Thanks to its original optical design using a toroïdal grating in grazing incidence, the TGM series monochromators is a low aberration monochromator with an unmatched throughput.
Monochromator with 300 mm focal length to cover the 10-300 nm spectral range.
Toroïdal VLS Grating (single optic)
550 gr/mm : 10-50 nm
550 gr/mm : 15-150 nm
275 gr/mm : 50-300 nm
Pt or Au
550 gr/mm : 1.9 nm/mm at 10 nm
550 gr/mm : 1.8 nm/mm at 15 nm
275 gr/mm : 3.9 nm/mm at 50 nm
10-6 mbar (HV version)
10-8 mbar (UHV version)
Micrometric slits (10 µm to 2 mm)
RS232 – USB2
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