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. For VUV operation, the spectrograph has a UHV window and laminar flow purge system, which allows operation down to the window short wavelength cut-off (112 nm for MgF2). Small enough to fit in your hand, it 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 and low-cost accessories such as telescopes, vacuum adapters, and flow controllers.
SpecificationFocal Length (input)Focal Length (output)Wavelength Range (depends on grating)Wavelength AccuracyCCD QE for 110 - 400nmCCD QE for 400 - 930nmCCD QE for 930 - 1050nmBest Spectral Resolution 3600 grating first orderAvailable GratingsWavelength RangeWavelength ResolutionSoftware selectable slitsOrder sorterDark shutterSoftware selection of spectral rangeSoftware selection grating apertureDetectorUHV optionConnection
From 600 - 4200 grooves per mmUp to 5 frames of 100 - 500nm spanning from 100 - 1100nm<0.25nm in center of field with 3600 grooves per mm gratingTypical range of resolution is 0.1 - 2mmNo filter, 200, 300 and 600 nm long pass filtersAutomatic dark exposures wien +dark button selected3600 l/mm grating 110 - 315 (2 steps) 1200 l/mm grating 110 to 950 (5 steps)Effective range of f/# 3.2 - 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, 3600 or 4200 G/mm10 step of 100-150nm from 115nm -1100nm (depending on selected grating)3.30.12nm in centre of field w/3600 G/mm grating0.15/0.01mm2048 pixel linear array500g111mm x 94mm x 59mm