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High-Resolution Spectrometer

Photonics Spectra
Apr 2011
McPhersonRequest Info
 
A high-resolution spectrometer from McPherson Inc. for emission, luminescence, Raman (strained silicon) and high-temperature plasmas measures better than 0.02 nm full width half maximum spectra. Model 2061 is available for scanning and imaging applications via 2-D CCD or CMOS detectors. The 1-m-focal-length spectrometer features bilaterally adjustable slits, multiple entrance and exit port locations, and a high-precision wavelength drive for good reproducibility. The ability to mount large, high-angle echelle-type diffraction gratings is built in. The 50-mm-wide focal plane is readily accessible. Oversize proprietary and patented Snap-In gratings provide a 40% more diffractive ruled area. Matching, focusing and collimating optics provide high light throughput and operation with an f/7 aperture. The gratings are easily interchangeable.


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GLOSSARY
echelle
A grating that serves to provide higher resolution and dispersion than the average grating, and still has a greater free spectral range than either the Fabry-Perot etalon or the reflection echelon.
luminescence
See fluorescence; phosphorescence.
scanning
The successive analysis or synthesizing of the light values or other similar characteristics of the components of a picture area, following a given method.
spectrometer
A kind of spectrograph in which some form of detector, other than a photographic film, is used to measure the distribution of radiation in a particular wavelength region.  
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