T-GP3518F - VPH Transmission Grating, 532 nm DWL, 1800 Lines/mm, 28.6° AOI, 50 mm x 30 mm
T-GP3518F - VPH Transmission Grating, 532 nm DWL, 1800 Lines/mm, 28.6° AOI, 50 mm x 30 mm
- 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 532NM
- Spatial Frequency 1800 lines/mm
- Angle of Incidence at the Design Wavelength 28.6°
- Diffraction Efficiency 450 nm: S-Pol > 45%; P-Pol > 60%
532 nm: S-Pol > 80%; P-Pol > 80%
650 nm: S-Pol > 40%; P-Pol > 40% - Broadband Antireflection Coating Performance at the Specified AOI (Per Surface) 400 - 700 nm
Ravg < 1.5% - Cover Plate Substrate N-BK7 or Equivalent
- Dimensions 50.0 mm x 30.0 mm x 6.0 mm
| Common Specifications | |
|---|---|
| Grating Film | Dichromated Gelatin |
| Cover-Plate Substrate | N-BK7 or Equivalent |
| Thickness Tolerance | ±0.2 mm |
| Spatial Frequency Tolerance | ±2 lines/mm |
| AOI Tolerance | ±1° |
| Transmitted Wavefront Error (RMS) |
<λ/4 at 632.8 nm |
| Surface Quality | 40-20 Scratch-Dig |