- Laser Quality Crystal Quartz
- Clear Apertures of 8, 10, 15, 23, 34 & 46 mm
- Mounted or Unmounted
- Retardations of ¼ and ½
- Waveplates are AR Coated
- High Performance Specifications
Dual Wavelength Waveplates
Dual Wavelength Waveplates are designed to operate at two different wavelengths. They will also be coated at both wavelengths. Contact us for specify design capabilities.
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Tower’s multiple order waveplates consist of a single plates of laser quality crystal quartz.
Because their retardation adds some integer number of waves to the desired fraction (λ /4, λ /2), they are many times more sensitive to temperature and wavelength than zero order waveplates. Therefore they perform well only in laboratory environments and in mono- chromatic light.
Tower Optical multiple order waveplates are AR coated on both sides. Standard retardations are λ /4 and λ /2; other values are available upon request.
They are offered either unmounted or mounted in an anodized aluminum ring.
Multiple order Waveplates can be diced or edged as small as 1mm in diameter or square.
Waveplate Specifications |
Material:Crystal Quartz – Laser quality |
| Waveplate Thickness Range: 0.3 to 2 mm |
| Wavefront Distortion: λ/10 @ 632.8nm |
| Surface Quality: 10-5 Scratch/Dig |
| Parallelism (Wedge): 0.5 arc seconds |
| Wavelength Range: 237nm – 2021nm |
| Retardation Tolerance: ±0.005 waves @ 632.8nm |
| Coating: Anti Reflective, R<0.25% per surface |
| Damage Threshold: 1kW/cm2 – CW3.5 J/cm2 @10ns |
| Diameter: 10, 12.5, 17.5, 25.4, 38.1 and 50.8 mm, +0.0/-0.25 mm unmounted; or mounted in appropriate sized mounting rings |
| Mounted Thickness:Depends on mount diameter |
Standard Wavelengths for Multiple Order Waveplates
| 237 | 248 | 266 | 308 | 325 |
| 355 | 399 | 405 | 408 | 413 |
| 423 | 442 | 458 | 488 | 515 |
| 532 | 556 | 589 | 633 | 647 |
| 650 | 660 | 670 | 676 | 694 |
| 710 | 767 | 780 | 800 | 808 |
| 820 | 830 | 850 | 905 | 946 |
| 980 | 1050 | 1064 | 1112 | 1315 |
| 1550 | 1762 | 1988 | 2021 |
Ordering Information |
| WP Unmounted example for 17.5 mm Dia |
| M-17.5-D-R-N-WL . . . . . . . . . . . . . . . . . .$235 |
| WP Mounted in a 25.4 mm ring |
| M-17.5-D-R-B-WL . . . . . . . . . . . . . . . . . .$250 |
| WP Unmounted example for 25.4 mm Dia |
| M-25.4-D-R-N-WL . . . . . . . . . . . . . . . . . .$330 |
| WP Mounted in a 30 mm ring |
| M-25.4-D-R-C-WL . . . . . . . . . . . . . . . . . .$360 |
| R = Retardation: .500 or .250, WL = Wavelength |
| Contact factory for quantity pricing or custom requirements |
Dual Wavelength Waveplates Available, Special order.
We make custom versions of everything on this site. Send us your drawings or specifications and we will provide a quotation.