500mm Monochromator
Scanning monochromator is an instrument that converts incident composite light into monochromatic light output, serving as the core device for spectral analysis and material characterization. It is independently developed by our company,it features low stray light, broad spectral coverage, fast scanning speed, excellent wavelength repeatability, high wavelength accuracy, superior spectral resolution and strong output spectral radiant power.
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01/Innovative closed-loop spectral scanning control technology;
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02/Advanced stray light suppression technology, stray light down to 10⁻⁵;
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03/Patented technology, precise wavelength calibration accuracy better than 0.1 nm;
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04/Precision mechanical transmission system, wavelength scanning resolution up to 0.002 nm/step;
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05/DLL dynamic link library provided for convenient secondary development;
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06/Three-lens optical path light source chamber for high-energy light output,weak signal detection system with noise level down to 10-12 A.
Item | Parameter |
Focal Length (mm) | 500 |
Number of Gratings | 3 gratings |
Grating Size (mm) | 64×64 / 85×85 |
Grating Groove Density (G/mm) | 1200 / 600 / 300, customized upon customer request |
F/# | 5.52 / 4.15 |
Spectral Range (nm) | 250 ~ 2500 |
Spectral Scanning Resolution (nm) | 0.002 |
Reciprocal Linear Dispersion (nm/mm) | 1.60@1200 G/mm |
Wavelength Accuracy (nm) | 0.02@1200 G/mm |
Wavelength Repeatability (nm) | 0.04@ λ=546.1 nm |
Scanning Speed | 12S/360° |
Stray Light Level | 2×10⁻⁸ |
Focal Plane Size (W×H) (mm) | 46.6×14 |
Standard Slit Width (mm) | 0.05, 0.1, 0.5, 1, 2 |
Slit Height (mm) | 8 ~ 12 (customized on request) |
Communication Interface | USB3.0 as standard,RS-232/485 optional |
Overall Dimension (L×W×H) (mm) | 750×430×280 |
Weight (kg) | 25 |
Peak Power Consumption (w) | 100 |
Test Conditions:
(1)Slit width: 0.01 mm;
(2)Grating resolution: 600 G/mm;
(3)Wavelength scanning step: 0.005 nm;
(4)Photodetector: Hamamatsu S5971 silicon photodiode and HP-A24p high sensitivity current amplifier.
(1)Secondary spectrum scanning curve at 546.1 nm;
(2)The wavelength repeatability curve was obtained by five consecutive forward and reverse scans using the HP-GrMo30 (f=300 mm) monochromator;
(3)The maximum deviation of central wavelength among 5 scans is 0.015nm.
