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Holographic grating

BioPhotonics
Oct 2007
Spectrum Scientific Inc.Request Info
 
SpectrumScientific.jpgSpectrum Scientific Inc. has introduced the 470-250-040 aberration-corrected blaze holographic concave grating. It achieves 85% efficiency at a 250-nm blaze wavelength and features a wavelength range from 190 to 800 nm, a focal ratio of f/2, 21.3-nm/mm reciprocal linear dispersion, a spectral length of 28.7 mm and a 75.86-mm entrance path wavelength. The company says that the grating has a high numerical aperture and low stray light.


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