T-GP1018F - VPH Transmission Grating, 532 nm DWL, 1800 Lines/mm, 28.6° AOI, Ø1"
Product Drawing
- Design Wavelength (DWL) and Spatial Frequency Options:
- 532 nm: 1800 Lines/mm
- 600 nm: 600 Lines/mm
- Ø1", Ø2", and 50.0 mm x 30.0 mm Gratings Available
- High First-Order Diffraction Peak Efficiency (See Tables Below)
- Low Polarization-Dependent Loss
- Uniform Performance Over Broad Bandwidths (See Diffraction Efficiency Graphs Below)
- Extremely Low Scatter Between Orders (No Ghosting)
- Dichromated Gelatin (DCG) Film Between Two Glass Substrates
- Ideal for Spectroscopy
- Design Wavelength 532 nm
| T-GP1018F Specifications |
| Design Wavelength |
532 nm |
| Spatial Frequency |
1800 ± 2 lines/mm |
| Line Orientation |
±1° Off of Engraved Line |
| Angle of Incidence (AOI)a
|
28.6° ± 1° |
| Diffraction Efficiencyb
|
450 nm: S-Pol > 45%; P-Pol > 60%
532 nm: S-Pol > 80%; P-Pol > 80%
650 nm: S-Pol > 40%; P-Pol > 40% |
| BBAR Coatingc
|
400 - 700 nm
Ravg < 1.5% |
| Transmitted Wavefront Error (RMS) |
<λ/4 at 632.8 nm |
| Grating Film |
Dichromated Gelatin |
| Cover-Plate Substrate |
N-BK7 or Equivalent |
| Surface Quality |
40-20 Scratch Dig |
| Dimensions (D x T) |
Ø25.4 mm x 3.0 mm |
| Clear Aperture |
>Ø22 mm |
| Diameter Tolerance |
+0.0 mm / -0.2 mm |
| Thickness Tolerance |
±0.2 mm |
