Double monochromator-spectrograph based on the M266 | SOLAR LS
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Double M266

Double monochromator-spectrograph based on the M266
Double monochromator-spectrograph based on the M266 Double M266
FEATURES

Monochromator-spectrograph M266 is available for order in the double-dispersive scheme modification – Double M266: in that case, the output slit of the first M266 becomes the input slit of the second M266. Due to larger focal length and dispersion addition, the twice-better spectral resolution and lower stray light are achieved. Effective transmission of radiation from a source into monochromators can be realized with variety of options, such as spherical and toroidal optics, optical fibers. Upon your request, spectral slit with blackened blades can be supplied.

SPECIFICATIONS
Download SPECIFICATIONS
Optical scheme Optimized Czerny-Turner with one input and two outputs
Spectral range Typical 190 – 3600 nm,
Extended up to 40 µm (upon request)
F/Number 1 : 3.8
Total focal length, mm 568
Flat field on the lateral port of the first M266, mm 30 x 10
Flat field on the lateral port of the second M266, mm 6 x 10
Imaging Option. Available for the both output ports simultaneously.
Diffraction gratings 50x50x10 mm, one grating or a turret with 4 gratings from the list below 1)
— Grooves/mm 2400 1800 1200 600 400 300
— Reciprocal linear dispersion (average) nm/mm2) 0.79 1.06 1.59 3.19 3.16 4.8 4.7 6.37 6.32
— Blaze wavelength, nm 225 270 400 750 1000 800 1700 1500 2000
— Spectral range, nm3) 190-450 190-540 265-800 500-1500 660-1800 530-1600 1130-2600 1000-3000 1330-3600
— Multichannel array bandpass on the output
of the second M266 (average), nm
3.8 4) 5.2 4) 7.6 4) 15 4) 8 4) 23 4) 12 5) 16 5) 16 5)
— Spectral resolution on the output
of the second M266, nm
<0.05 4) <0.08 4) <0.11 4) <0.22 4) <0.22 4) <0.35 4) <0.35 5) <0.47 5) <0.47 5)
Entrance/exit slits Refer to М266 specifications
Intermediate slit width, mm 5
Filter wheel Refer to М266 specifications
Integrated shutter Computer controlled, serves for dark signal measuring
Computer interface High-Speed USB интерфейс

1) Upon your request diffraction gratings differing from the above can be used
2) Reciprocal linear dispersion is indicated for blazing wavelength
3) Wavelength range for which diffraction efficiency exceeds 40%
4) For detector with 24 µm pixel size and 24.5 mm length of active area
5) For detector with 25 µm pixel size and 12.8 mm length of active area

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