Code | Design Wavelength | Retardation | Diameter | Aperture | Coating | Mount | Unit Price | Delivery | Cart |
---|---|---|---|---|---|---|---|---|---|
20908-001 | 405nm | λ/4 | 12.7mm | 10mm | 350-700nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20908-002 | 442nm | λ/4 | 12.7mm | 10mm | 350-700nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20908-003 | 488nm | λ/4 | 12.7mm | 10mm | 350-700nm AR Coating | SM05 Threaded Mount | $145.58 | 3 days | |
20908-004 | 520nm | λ/4 | 12.7mm | 10mm | 350-700nm AR Coating | SM05 Threaded Mount | $145.58 | 3 days | |
20908-005 | 532nm | λ/4 | 12.7mm | 10mm | 350-700nm AR Coating | SM05 Threaded Mount | $145.58 | 3 days | |
20908-006 | 633nm | λ/4 | 12.7mm | 10mm | 350-700nm AR Coating | SM05 Threaded Mount | $145.58 | 3 days | |
20908-007 | 729nm | λ/4 | 12.7mm | 10mm | 650-1100nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20908-008 | 780nm | λ/4 | 12.7mm | 10mm | 650-1100nm AR Coating | SM05 Threaded Mount | $145.58 | 3 days | |
20908-009 | 795nm | λ/4 | 12.7mm | 10mm | 650-1100nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20908-010 | 800nm | λ/4 | 12.7mm | 10mm | 650-1100nm AR Coating | SM05 Threaded Mount | $145.58 | 3 days | |
20908-011 | 808nm | λ/4 | 12.7mm | 10mm | 650-1100nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20908-012 | 850nm | λ/4 | 12.7mm | 10mm | 650-1100nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20908-013 | 1030nm | λ/4 | 12.7mm | 10mm | 650-1100nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20908-014 | 1053nm | λ/4 | 12.7mm | 10mm | 650-1100nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20908-015 | 1064nm | λ/4 | 12.7mm | 10mm | 650-1100nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20908-016 | 1310nm | λ/4 | 12.7mm | 10mm | 1050-1700nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20908-017 | 1550nm | λ/4 | 12.7mm | 10mm | 1050-1700nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20908-018 | 405nm | λ/4 | 25.4mm | 20mm | 350-700nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20908-019 | 442nm | λ/4 | 25.4mm | 20mm | 350-700nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20908-020 | 520nm | λ/4 | 25.4mm | 20mm | 350-700nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20908-021 | 532nm | λ/4 | 25.4mm | 20mm | 350-700nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20908-022 | 633nm | λ/4 | 25.4mm | 20mm | 350-700nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20908-023 | 729nm | λ/4 | 25.4mm | 20mm | 650-1100nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20908-024 | 780nm | λ/4 | 25.4mm | 20mm | 650-1100nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20908-025 | 795nm | λ/4 | 25.4mm | 20mm | 650-1100nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20908-026 | 800nm | λ/4 | 25.4mm | 20mm | 650-1100nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20908-027 | 808nm | λ/4 | 25.4mm | 20mm | 650-1100nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 2 Weeks | |
20908-028 | 850nm | λ/4 | 25.4mm | 20mm | 650-1100nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20908-029 | 1030nm | λ/4 | 25.4mm | 20mm | 650-1100nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20908-030 | 1053nm | λ/4 | 25.4mm | 20mm | 650-1100nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 2 Weeks | |
20908-031 | 1064nm | λ/4 | 25.4mm | 20mm | 650-1100nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 2 Weeks | |
20908-032 | 1310nm | λ/4 | 25.4mm | 20mm | 1050-1700nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20908-033 | 1550nm | λ/4 | 25.4mm | 20mm | 1050-1700nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 2 Weeks | |
20908-034 | 405nm | λ/4 | 50.8mm | 45mm | 350-700nm AR Coating | SM2 Threaded Mount | $257.78 | 3 days | |
20908-035 | 442nm | λ/4 | 50.8mm | 45mm | 350-700nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20908-036 | 488nm | λ/4 | 50.8mm | 45mm | 350-700nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20908-037 | 520nm | λ/4 | 50.8mm | 45mm | 350-700nm AR Coating | SM2 Threaded Mount | $257.78 | 3 days | |
20908-038 | 532nm | λ/4 | 50.8mm | 45mm | 350-700nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20908-039 | 633nm | λ/4 | 50.8mm | 45mm | 350-700nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20908-040 | 729nm | λ/4 | 50.8mm | 45mm | 650-1100nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20908-041 | 780nm | λ/4 | 50.8mm | 45mm | 650-1100nm AR Coating | SM2 Threaded Mount | $257.78 | 3 days | |
20908-042 | 795nm | λ/4 | 50.8mm | 45mm | 650-1100nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20908-043 | 800nm | λ/4 | 50.8mm | 45mm | 650-1100nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20908-044 | 808nm | λ/4 | 50.8mm | 45mm | 650-1100nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20908-045 | 850nm | λ/4 | 50.8mm | 45mm | 650-1100nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20908-046 | 1030nm | λ/4 | 50.8mm | 45mm | 650-1100nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20908-047 | 1053nm | λ/4 | 50.8mm | 45mm | 650-1100nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20908-048 | 1064nm | λ/4 | 50.8mm | 45mm | 650-1100nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20908-049 | 1310nm | λ/4 | 50.8mm | 45mm | 1050-1700nm AR Coating | SM2 Threaded Mount | $257.78 | 3 days | |
20908-050 | 1550nm | λ/4 | 50.8mm | 45mm | 1050-1700nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks |
Hangzhou Shalom EO’s Polymer True Zero Order Waveplates consist of one birefringent Liquid Crystal Polymer (LCP) thin film sandwiched between two UV-fused silica protective windows. All polymer wave plates are installed inside standard black anodized mounts or SM series threaded housing, and the end face of the mounts and the side of the SM threaded housings are laser marked to indicate the fast axis direction of the wave plate. Our LCP waveplates are great substitutes for crystal waveplates, as polymer waveplates have the advantage of much lower sensitivities responding to the Angles of Incidence (AOI)s.
Shalom EO’s polymer waveplates are engineered to be True Zero-order Waveplates, providing stable phase retardation over an expanded range of AOI deviations and unaffected performance over wavelength shifts. This page specializes in our Polymer Zero Order Quarter Wave Plates, which are designed to introduce precisely a 1/4 wavelength (a quarter wavelength) retardation between two orthogonal polarization components of light. The liquid crystal polymer true zero order waveplates or retarders can be used to convert linearly polarized light into circularly polarized light or vice versa when light is incident at 45° to the fast (or slow) axis of the 1/4 polymer waveplates.
The true zero order design in combination with the construction in which the polymer thin films are laminated between two fused silica windows makes our polymer quarter wave plates offer wider angular acceptance and more consistent polarization control over a broader spectral range than their multiple-order or crystal counterparts. This is because polymers, in their inherent nature, have low birefringence of minimal wavelength dependence. Shalom EO’s polymer quarter waveplates deliver greater performances over AOIs up to 15°, excellent retardance accuracies of ±λ/100, and superior retardance uniformity.
The polymer thin film fabricated using liquid crystal polymer is cemented between two quartz windows coated with AR coatings, this sandwiched structure and broadband AR coatings ensure both high optical transmission at the design wavelengths and robustness of the polymer waveplates.
Shalom EO supplies a large selection of Stocked and Custom Liquid Crystal Polymer Quarter Waveplates. Our polymer quarter-wave plates are excellent for conversion between linear and circular polarization as well as corrections of elliptical polarization. For the stocked polymer quarter wavelength waveplates, numerous design wavelengths ranging from 405nm to 1550nm are available, and we provide multiple standard sizes including diameters 12.7mm (1/2”), 25.4mm (1”), and 50.8mm (2”). More custom designs are accessible upon request.
Polymer waveplates, especially with cemented structures are not recommended for applications requiring high laser damage thresholds. As an alternative, Shalom EO also provides stock and custom Zero Order Half Wave Plates and Zero Order Quarter Wave Plates fabricated using quartz and MgF2, where these crystal half waveplates and half waveplates offer better retardation precision, higher damage thresholds but reduced angular acceptance.
Related Optomechanical Products:
Hangzhou Shalom EO alo provide Manual Free Space Rotation Mounts compatible with our polymer quarter waveplates and half waveplates, the rotation mounts offer a wide angular rotation range of 360°. The SM threaded structure allow firm and seamless installation with our lens tubes and mounts.
These versatile standard rotation mounts Shalom EO offer can accommodate round optical elements of different sizes and maximum thicknesses. Hangzhou Shalom EO provides three adaptable sizes of optics compatible to the mount, including dia12.7 mm (maximum thickness 9.3mm), dia25.4 mm (maximum thickness 10.8mm), and dia 50.8 mm (maximum thickness 13mm), making our rotation mount suitable for a wide range of optical applications. The engraved dial have a graduation of 2°to ensure flexible, continuous manual rotation experience and precise alignment is ensured without obstructions for various optics like waveplates or polarizers.
Application Notes:
The Working Principle of Quarter Waveplates or Quarter Wavelength Plates
A Quarter Waveplate, also known as a Quarter Wavelength Plate, is an optical device that introduces a phase difference of 90° (or λ/4) between two orthogonal polarization components of light. It is widely used for controlling polarization states, such as converting linearly polarized light into circularly polarized light or vice versa. The working principle of a quarter waveplate relies on the phenomenon of birefringence, which occurs in certain birefringent materials (the materials can be crystals, like quartz, calcite, Magnesium Fluoride, or polymers). These materials exhibit two refractive indices: one for the ordinary ray (o-ray), which experiences a refractive index no, and another for the extraordinary ray (e-ray), which experiences a refractive index ne. Due to this difference, light polarized along these two axes travels at different speeds, causing a phase shift between the two components.
When light enters the quarter waveplates at a 45° angle to its optical axes (either the fast axis and slow axis of the quarter wave plates), the birefringence creates an optical path difference between the ordinary and extraordinary rays. The thickness of the waveplate is carefully designed so that this optical path difference equals one-quarter of the light's wavelength, resulting in a phase retardation of 90°. This phase retardation transforms the polarization state of the light. For instance, linearly polarized light incident at 45° to the axes is converted into circularly polarized light because the two orthogonal components are now equal in amplitude but separated by a 90° phase difference. Conversely, circularly polarized light passing through a quarter waveplate becomes linearly polarized. The waveplate can also modify elliptical polarization by adjusting the ellipticity or orientation.
Common Specifications:
Materials | Liquid Crystal Polymer and UV Fused Silica Windows | Retardance | λ/4 |
Retardance Accuracy | ±λ/100 | Retardance Uniformity(RMS) | ±5nm |
Anti-Reflection Coating | Ravg<0.5% (@6°AOI) | Transmitted Wavefront Error (@633nm) | λ/2 |
Surface Quality(S/D) | 40/20 | Angle of Incidence (AOI) | ±15° |
Mounts | Dia25.4mm Retaining Rings/SM Threaded Mounts | Diameter Tolerance | +0.00/-0.05mm |
Thickness Tolerance | ±0.05mm | Working Temperature | -20~60°C |