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Model 2062 Czerny-Turner Monochromator for High Resolution Spectroscopy

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LongestFocalLengthCommercialInstrumentPatented"Snap-In"gratingsExtendedwavelengthrangesettingRuggedConstructionwithMultipleslitlocations

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Longest Focal Length Commercial Instrument
Patented "Snap-In" gratings
Extended wavelength range setting
Rugged Construction with Multiple slit locations

· Longest Focal Length Commercial Instrument

· Patented "Snap-In" gratings

· Extended wavelength range setting

· Rugged Construction with Multiple slit locations

The McPherson Model 2062 is the highest resolution diffraction spectrometer commercially available. It can be operated with Double Pass (DP) optics for an additional two fold improvement. This unique 2-meter focal length Czerny Turner can be equipped with large gratings (up to 220 mm wide). Grating rotation in excess of 70 degrees is allowed and double pass optics can be installed. These double the dispersion and resolution without influencing the f/no. or aperture ratio.

An example of a Model 2062 in use for highly precise spectral-line measurements of the Sun as a star can be found at Synoptic Optical Long-term Investigations of the Sun (SOLIS) web site. This is a facility for solar observations over a long time frame, funded by the NSF and designed and built by the NSO. The 2062, pictured in their gallery, has provided ten years of high resolution spectra.

Model 2062 PDF Data Sheet

Optical Design	McPherson Model 2062 2-meter focal length f/14.1 Monochromator
Focal Length	2-meters, Czerny Turner design Spectrometer with Patented "Snap-In" gratings
Aperture Ratio	14.1 (17.4 with smaller grating)
Wavelength Range	refer to grating of interest for range, in extended position increase top limit 20%
Wavelength Accuracy	+/-0.05 nm (with 1200 G/mm grating)
Wavelength Reproducibility	+/- 0.005 nm (with 1200 G/mm grating)
Grating Size	120 x 140-mm (or 110 x 110-mm) - Echelle gratings up to 220-mm wide
Slit Locations	Axial and lateral with optional extra entrance and exit port selection mirrors
Focal Plane	50-mm maximum width, multiply dispersion by the width of your detector for range

Performance with various diffraction gratings:

Grating (G/mm) (others available)	2400	1800	1200	600	300	150	75	20
Wavelength Range from 185-nm to	650nm	860nm	1.3um	2.6um	5.2um	10.4um	20.8um	78um
Resolution (nm) at 313.1-nm	0.003	0.004	0.005	0.010	0.020	0.040	0.080	0.300
Dispersion (nm/mm)	0.21	0.28	0.42	0.84	1.68	3.36	6.72	25.2
First Order Littrow Blaze (nm)	240nm	Holo	250nm	300nm	750nm	1.25um	2.0um	45um
	300nm		300nm	500nm	1.0um	2.5um	3.0um

	Holo		500nm	750nm	3.0um	4.0um	8.0um

			750nm	1.0um	4.0um	6.0um	10.0um

			1.0um	1.85um		8.0um	12.0um