S p e ctro m ete rs Ocean Optics pioneered the concept of ... - NDN
S p e ctro m ete rs Ocean Optics pioneered the concept of ... - NDN
S p e ctro m ete rs Ocean Optics pioneered the concept of ... - NDN
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Application Notes<br />
Extended-range Measurement <strong>of</strong> a Deuterium-Halogen Light Source<br />
Spe<strong>ctro</strong>m<strong>ete</strong><strong>rs</strong><br />
Broad UV-NIR spectral coverage can be achieved in a miniature spe<strong>ctro</strong>m<strong>ete</strong>r configured with our XR-1 Extended Range grating, which is<br />
responsive from 200-1050 nm. Our USB2000+ Spe<strong>ctro</strong>m<strong>ete</strong>r with an XR-1 grating maintains good optical resolution over <strong>the</strong> UV-NIR range, making<br />
it useful for applications such as measuring <strong>the</strong> relative output <strong>of</strong> a combination deuterium-halogen light source.<br />
Introduction<br />
The ability to provide UV-NIR coverage in a single miniature<br />
spe<strong>ctro</strong>m<strong>ete</strong>r has always been a challenge. Trade-<strong>of</strong>fs inherent<br />
to most diffraction gratings – most noticeably, <strong>the</strong> effect <strong>of</strong> blaze<br />
angle on <strong>the</strong> efficiency <strong>of</strong> <strong>the</strong> diffraction – can pose challenges<br />
for certain applications. While gratings were available that diffracted<br />
over a wide range, this came at <strong>the</strong> expense <strong>of</strong> decreased<br />
optical resolution and increased problems associated with<br />
second- and third-order overlap.<br />
Newer gratings such as <strong>the</strong> XR-1 provide good efficiency over<br />
a wider wavelength range (200-1050 nm) than is o<strong>the</strong>rwise<br />
possible with standard gratings. What’s more, good optical<br />
resolution (
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