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MSA130 cascaded dual monochromator
MSA130- Subtraction, Dispersion Addition Monochromator MSA-130 Dual Monochromator Product Description: MSA-130 Dual Monochromator is a compact cascade
Product details
MSA130- Subtraction,Dispersion additive monochromator
MSA-130 Dual Monochromator Product Description:
The MSA-130 dual monochromator is a compact cascaded dual monochromator with enhanced functionality and low stray light characteristics. The main feature of the MSA-130 dual monochromator is its unique ability to operate in both dispersion increasing and dispersion decreasing modes.
MSA-130 Dual Monochromator Product Features:
MSA-130 is a compact cascaded monochromator with enhanced functionality and low stray light characteristics.
The main feature of MSA-130 is its unique ability to operate in both dispersion increasing and dispersion decreasing modes.
The MSA-130 operating mode can be switched manually by switching the selector switch from the "plus" to "minus" position, and vice versa, without any additional adjustment by the user. This instrument has the characteristics of multifunctionality, compactness, ease of use, and reliability.
In dispersion addition mode, MSA-130 serves as a standard dual additive monochromator with an effective focal length of 260 nm and extremely low stray light.
In dispersion subtraction mode, MSA-130 operates as adjustable. The width of the selected spectral range is set by the middle slit, and the center wavelength is set by the synchronous rotation of two identical diffractions.
Due to the fact that in dispersion subtraction mode, the optical path of the second half of the dual monochromator is completely identical to the reverse optical path of the first half; Therefore, dispersion is fully compensated and zero dispersion is achieved. The entire spectrum selected by the middle slit is imaged as a spatial line at the output of the second monochromator.
The MSA-130 is equipped with various ruled gratings to meet application requirements. To ensure perfect dispersion compensation (zero dispersion), the two diffraction gratings of the monochromator are manufactured from the same matrix.
MSA-130 dual monochromator specifications:
Optical structure |
Optimize Czerny Turner dual monochromator, supplemented by optical matching unit, to control dispersion increase or decrease |
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Spectral Range |
180-4800 nm (up to 40 µ m with appropriate grating) |
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F number |
1 : four point five |
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DIY monochromator Collimator lens focal length(mm) |
130 |
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diyiA focusing mirror Focal length (mm) |
142 |
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The second monochromator Collimator focal length (mm) |
142 |
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The second focusing mirror Focal length (mm) |
130 |
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port |
One input, one output |
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Exit/Entrance Narrow slit width （mm） |
0-2 adjustable |
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Exit/Entrance Slit height （mm） |
12 |
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Middle seam width（mm） |
0-5 adjustable |
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Middle seam height（mm） |
12 |
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Diffraction grating |
A set of two identical gratings are installed in the bracket and aligned by the manufacturer. The bracket with grating can be replaced by the user without additional alignment |
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Grating line density |
1200 |
600 |
300 |
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Grating size（mm） |
25*25*8
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25*25*8
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25*25*8
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Reciprocal of average linear dispersion rate（nm/mm） |
5.8 |
11.6 |
23.2 |
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Dispersion addition mode Reciprocal of average dispersion （nm/mm） |
3.0 |
6.0 |
12.0 |
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Dispersion addition mode spectral resolution （nm） |
0.07 |
0.14 |
0.28 |
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Spectral width （nm） |
0.2-6 |
0.4-12 |
0.8-24 |
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Dispersion subtraction mode Reciprocal of average dispersion （nm/mm） |
0 |
0 |
0 |
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Spectral width （nm） |
0.2-40 |
0.4-80 |
0.8-160 |
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Stray light |
6 * 10 — 9 |
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