M833 is a unique high-aperture doubled-disperssive monochromator/spectrograph combining high spectral resolution and low stray light in a compact design
Fully automated, the M833 is controlled from a РС via Full-Speed USB interface and contains a turret with three pairs of gratings (grating type and blaze are at your choice), up to two input ports and two output ports. Each of the input ports can apply our options and accessories– standard and crossed entrance slits, filter wheels, aperture matching units, and optical fibers. Each of the output ports can be completed with either an exit slit or an array detector with a corresponding detector adapter.
The M833i (IMAGING) version allows astigmatism compensation and ensures extraordinary resolution along the exit slit while maintaining ideal line quality. IMAGING version is arranged by an automated folding mirror switching radiation between two output ports. This allows obtaining Imaging effect at the lateral output port, keeping the standard configuration of the axial output port.
At your request, M833 is supplied with DLLs and LabVIEW drivers for controlling the instrument via individually designed software.
Main fields of applications are:
• Raman spectroscopy
• emission and fluorescent spectroscopy
• multi-channel & imaging spectroscopy
| Optical scheme |
optimized Czerny-Turner with double dispersion |
| F/Number |
1 : 5.5 |
| Effective focal length |
833 nm |
| Ports |
two inputs and two outputs |
| Flat field |
30 x 10 mm |
| Imaging |
Option. Available for the lateral output port |
| Diffraction gratings |
70 x 70 x 10 mm, automated turret with three pairs of gratings from the list below1) |
| - lines/mm1) |
2400 |
1800 |
1200 |
900 |
600 |
300 |
| - blaze wavelength, nm |
225 |
400 |
600 |
600 |
1000 |
2000 |
| - spectral range, nm |
190-600 |
253-800 |
380-1200 |
506-1600 |
760-2400 |
1500-4800 |
| - scanning range, nm |
0-640 |
180-850 |
0-1280 |
0-1710 |
0-2560 |
0-5120 |
- reciprocal linear dispersion
at spectral range edges, nm/mm
average dispersion, nm/mm |
0.46-0.27
0.39 |
0.61-0.36
0.52 |
0.92-0.54
0.78 |
1.22-0.72
1.04 |
1.84-1.08
1.56 |
3.68-2.16
3.12 |
- mulitchannel array bandpass
at spectral range edges, nm
average bandpass, nm |
13.3-7.92)
11.28 |
19.95-11.82)
16.92 |
26.6-15.82)
22.57 |
39.9-23.72)
33.84 |
23.5-13.83)
20 |
47.0-27.63)
40 |
- spectral resolution
at spectral range edges, nm
average resolution, nm |
0.015-0.00092)
0.012 |
0.02-0.0122)
0.016 |
0.03-0.0172)
0.024 |
0.04-0.0242)
0.032 |
0.12-0.073)
0.1 |
0.24-0.143)
0.2 |
| Integrated shutter |
adjusted automatically, serves for measuring dark signal |
| Computer interface |
High Speed USB |
| Dimensions and Weight |
500 x 700 350 mm, 54 kg |
1) For obtaining spectral parameters differing from the above, diffraction gratings with other lines quantity can be used.
2) For detector with 8 µm pixel size and 29.1 mm length of active area (resolution is 4 pixels)
3) For detector with 25 µm pixel size and 12.8 mm length of active area (resolution is 2.5 pixels)
 
Ordering
Each model requires standard or crossed input slit, output slit or detector with detector adapter. See these here.
Please see this file for detectors of choice. Most common models:
- UC-14T3 (sensor: Toshiba's TCD1304AP)
- UC-14T2 (sensor: Toshiba's TCD1205D)
- UC-14H83 (sensor: Hamamatsu S8378-1024Q)
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