Transmission Grating Beamsplitters
Optometrics
70 Groove, Transmission Grating Beamsplitter, 25 mm Sq., 3 mm Thick
Transmission Grating Beam Splitter Specifications | TGB70-25
Optical Coating |
Aluminum |
Grooves Per mm |
70 |
|---|---|---|---|
632.8 nm Efficiency at -2nd Order |
N/A |
632.8 nm Efficiency at -1st Order |
N/A |
632.8 nm Efficiency at 0th Order |
41% Nominal |
632.8 nm Efficiency at +1st Order |
32% Nominal |
632.8 nm Efficiency at +2nd Order |
N/A |
Substrate |
B-270 |
Size (mm) |
25 mm Sq. |
Size Tolerance |
±0.5 mm |
Thickness |
3 mm |
Thickness Tolerance |
±0.5 mm |
Scratch/Dig |
60/40 |
Clear Aperture |
90% |
Edge Angle |
90° ±0.50° |
Perpendicularity |
90° ±0.50° |
Operating Temperature Range |
-50° C to +125° C |
Damage Threshold: Pulsed |
350 mJ/cm², 200 nano sec. pulse |
Damage Threshold: CW laser |
40 watts/cm² |
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Scanning Digital Mini-Chrom Monochromator Specifications | SDMC1-02
Operating Range
200 – 800 nm
f Number
3.9
Focal Length
74 mm
Beam Path
In Line
Resolution with 50μ slits
0.36 nm
Resolution with 100μ slits
0.73 nm
Resolution with 150μ slits
1.09 nm
Resolution with 300μ slits (included)
2.18 nm
Resolution with 600μ slits
4.36 nm
Resolution with 1 mm slits
7.27 nm
Grating Density
1800 grooves/mm
Grating Blaze Wavelength
250 nm
Linear Dispersion (Center of Range)
7.27 nm/mm
Stray Light
≤ 0.003%
Wavelength Accuracy
± 0.2% of λ
Wavelength Reproducibility
± 0.15%
Wavelength Readability
0.2 nm
Operating Temperature Range
-20° C to +80° C
Damage Threshold: Pulsed
350 mJ /cm², 200 nano sec. pulse
Damage Threshold: CW laser
40 Watt/cm²
