Omni-lambda 500

Triple Grating Spectrograph

The Omni-lambda 500 is a monochromator / spectrograph for use in applications where superior spectral resolution is required e.g. Raman, atomic emission and high resolution absorption / transmission measurements.  The package length is 500 mm with a high speed f/6.5 aperture for increased light gathering capability.  Gratings are held on a interchageable triple sided turret, mounted on to a precision kinematic mount offering unparralled repeatability and reproducibility in spectral position, with up three turrets being supplied with each system.  Various configurations are available as shown below.  System control is via USB 2.0 and the supplied software, or ActiveX for integration into your own software.

Product Schematic

Product Image


Focal length 500 mm
Aperture ratio f/6.5
Scanning Range 0 to 1200 nm
Resolution 0.05 nm (at 435.8 nm wavelength, 10 µm slit width by 4 mm hight and standard 1200g/m grating)
Dispersion 1.7 nm/mm (1200 g/mm grating)
Wavelength Accuracy 0.2 nm (1200 g/mm grating)
Repeatability 0.1 nm
Drive Step Size 0.005 nm
Standard Slits 10 µm - 3 mm, continuously adjustable
Grating Mount Interchangeable triple grating turret, can hold 1 or 2 or 3 gratings
Size 550 mm long X 288 mm wide X 200 mm high
Weight 15 Kg
tel: +44(0)141.952.9475   fax: +44(0)141.952.9400   mbl: +44(0)798.357.6530   
Gilden Photonics Ltd., Unit 13 Telford Court, 9 South Avenue, Clydebank Business Park, Glasgow, G81 2NR, UK

©2005 - 2018 Gilden Photonics Ltd. Designed by Digital Shed. Developed by Secret Orange Ltd