The USB4000-VIS-NIR Spectrometer is pre-set to a 350-1000 nm wavelength range and comes with a multi-bandpass order-sorting detector coating and a 25 mm entrance slit for optical resolution to 1.5 nm (FWHM). Operating software is included.
Detector:
3648-element Toshiba TCD1304AP Linear CCD array
Useable range:
350-1000 nm (grating-dependent)
Dynamic range:
2 x 108
Sensitivity (estimate):
400 nm: 130 photons/count
600 nm: 60 photons/count
Signal-to-Noise:
300:1 (at full signal)
Dark noise:
12 RMS counts
Grating:
600 lines/mm, set to 350-1000 nm (blazed at 500 nm)
Slit:
25 mm width (height is 1000 mm)
Focal length:
42 mm (input); 68 mm (output)
Order-sorting:
Single-piece, multi-bandpass detector coating to eliminate second-order effects from 350-1000 nm
Resolution:
1.5 nm (FWHM)
Stray light:
< 0.05% at 600 nm< 0.10% at 435 nm
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