The VS7550 is a miniature Czerny-Turner spectrograph with excellent speed, spectral range and spectral resolution with software control of slit size, input f#, order sorting filters, grating angle and dark exposures. The UV spectrograph has a spectral range from the air short wavelength cut-off at 185 nm to the detector IR cut-off at 1100 nm. The spectrograph is small enough to fit in your hand and can be fully operational in any orientation at the end of a 5-meter cable. Accessories include a built-in spectral calibration lamp, a multi-spectral field flat light source, fiber optic adapters and back thinned detectors.
SpecificationFocal Length (input)Focal Length (output)Wavelength Range (depends on grating)Wavelength AccuracyCCD QE for 185 - 400nmCCD QE for 400 - 930nmCCD QE for 930 - 1050nmBest Spectral Resolution 3600 grating first orderAvailable GratingsWavelength RangeWavelength ResolutionSoftware selectable slits, order masks and dark shutterSoftware selection of spectral rangeSoftware selection grating apertureDetectorUHV optionConnection
From 600 - 4200 grooves per mmFrom 185 - 1100nm<0.25nm in center of field with 3600 grooves per mm gratingTypical range of resolution is 0.1 - 2mm3600 l/mm grating 185 - 315 (2 steps) 1200 l/mm grating 185 to 950 (5 steps)Effective range of f/# 3.5 - 8.42048 pixel linear array with VUV/UV phosphorWindow adapter with 2.75” ConflatTM flangeTwo USB 2.0 cables for data, power and servo control
50mm1200, 1800, 2400, 2880, or 3600 G/mm185nm -1100nm (depending on selected grating)3.70.12nm in centre of field w/3600 G/mm grating0.15/0.01mm2048 pixel linear array300g (approximate)111mm x 94mm x 59mm