DOUBLE MONOCHROMATOR-SPECTROGRAPH BASED ON THE 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
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), nm3.8 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
商品属性 [波长范围] 190 – 3600 nm