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Blazed Concave Grating

Spectrum Scientific Inc., SSI OpticsRequest Info
 
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Spectrum Scientific Inc. has expanded its concave gratings product line. A new blaze wavelength of 250 nm for the 1200 g/mm concave grating has been manufactured.

Designed for use in analytical instruments such as ultraviolet/visible spectrophotometers and flat-field imaging spectrographs, the proprietary blazing technique maximizes the energy over the required spectral range, while reducing stray light. Efficiencies greater than 80% can be achieved at the blaze wavelength without the need for ion etching.

Compared with plane-blazed holographic gratings, concave gratings can serve as a primary dispersive and focusing element, while reducing the number of optical elements and increasing throughput and instrument efficiency.

Custom gratings also are available.


Photonics Spectra
Nov 2012
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