1. Dual Grating Monochromator 1/4 M
2. F/3.9 or better
3. Automatic grating switching
4. Optical spectral resolution of 0.1nm with 1200 lp/mm grating
5. Hand Controller
6. Wavelength range shall be from 305 nm to 2,200 nm.
7. Gratings shall provide at least 20% efficiency for either polarization at 800 nm.
8. Gratings shall provide at least 60% efficiency for either polarization at 1600 nm.
9. Single input port
10. Dual flat field output ports
11. Order sorting filter, longpass with cut on of approximately 300nm wavelength Transmission greater than 92% from cut-on to 2500 nm. Optical Density below 275 nm shall be 6.0 or greater.
12. Order sorting filter, longpass with cut on of approximately 570 nm wavelength, Transmission greater than 92% from cut-on to 2500 nm. Optical Density below 550 nm shall be 6.0 or greater.
13. Order sorting filter, longpass with cut on of approximately 1000 nm wavelength, Transmission greater than 92% from cut-on to 2500 nm. Optical Density below 800nm shall be 6.0 or greater.
14. Must include motorized filter wheel

Delivery is FOB Destination to:
NASA/Glenn Research Center
21000 Brookpark Road
Cleveland OH 44135-3127