T-PFD05-03-M02 - Ø1/2" MIR-Enhanced Gold D-Shaped Mirror, 2 - 20 µm
T-PFD05-03-M02 - Ø1/2" MIR-Enhanced Gold D-Shaped Mirror, 2 - 20 µm
- Choose from Nine Coatings:
- UV-Enhanced Aluminum: 250 - 450 nm
- Protected Silver: 450 nm - 20 µm
- Ultrafast-Enhanced Silver: 750 nm - 1000 nm
- Protected Gold: 800 nm - 20 µm
- MIR-Enhanced Gold: 2 μm - 20 μm
- -E01 Broadband Dielectric Coating: 350 - 400 nm
- -E02 Broadband Dielectric Coating: 400 - 750 nm
- -E03 Broadband Dielectric Coating: 750 - 1100 nm
- -E04 Broadband Dielectric Coating: 1280 - 1600 nm
- Choose from Ø1/2" or Ø1" Versions
- Ideal for Use with Closely Spaced Beams
- Reflective Coating Beveled 0.1 mm at Straight Edge
Mid-Infrared-Enhanced Gold Mirrors offer >98% average reflectance and >95% absolute reflectance between 2 µm to 20 µm, without suffering losses found with protected gold mirrors. The overcoat on these mirrors allows them to perform better than our unprotected gold mirrors in the mid-infrared (MIR), while offering resistance to physical damages.
The plot to the right shows the measured reflectance of this coating as a function of wavelength. The shaded region denotes the range over which we recommend using these optics. Data was obtained using at a 45° angle of incidence.
| Damage Threshold Specifications | ||
|---|---|---|
| Coating Designation (Item # Suffix) |
Type | Damage Threshold |
| -M02 | Pulsed | 0.1 J/cm2 (1.064 µm, 10 ns, 10 Hz, Ø1.06 mm) 3 J/cm2 (10.6 µm, 100 ns, 1 Hz, Ø1.29 mm) |
| CW | 25 W/cm (1.07 µm, Ø1.04 mm) 450 W/cm (10.6 µm, Ø1.18 mm) |
| Coating | MIR-Enhanced Gold | |
|---|---|---|
| Item # | PFD05-03-M02 | PFD10-03-M02 |
| Coating Range | 2 - 20 µm | |
| Diameter | Ø1/2" | Ø1" |
| Diameter Tolerance | +0.0/-0.1 mm | |
| Thickness | 6.0 mm ± 0.2 mm | |
| Substrate | Fused Silica | |
| Front Surface Flatness | λ/10 @ 633 nm | |
| Surface Quality | 40-20 Scratch-Dig | |
| Clear Aperture | >90% of Diameter | |
| Reflectance | Ravg > 98%a and Rabs> 95%a from 2 μm - 20 μm | |
| Parallelism | ≤5 arcmin | |
| Damage Threshold (Pulse) | 0.1 J/cm2 (1.064 µm, 10 ns, 10 Hz, Ø1.06 mm) 3 J/cm2 (10.6 µm, 100 ns, 1 Hz, Ø1.29 mm) |
|
| Damage Threshold (CW) | 25 W/cm (1.07 µm, Ø1.04 mm) 450 W/cm (10.6 µm, Ø1.18 mm) |
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