Code | Design Wavelength | Retardation | Diameter | Aperture | Coating | Mount | Unit Price | Delivery | Cart |
---|---|---|---|---|---|---|---|---|---|
20909-001 | 405nm | λ/2 | 12.7mm | 10mm | 350-700nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20909-002 | 442nm | λ/2 | 12.7mm | 10mm | 350-700nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20909-003 | 488nm | λ/2 | 12.7mm | 10mm | 350-700nm AR Coating | SM05 Threaded Mount | $145.58 | 3 days | |
20909-004 | 520nm | λ/2 | 12.7mm | 10mm | 350-700nm AR Coating | SM05 Threaded Mount | $145.58 | 3 days | |
20909-005 | 532nm | λ/2 | 12.7mm | 10mm | 350-700nm AR Coating | SM05 Threaded Mount | $145.58 | 3 days | |
20909-006 | 633nm | λ/2 | 12.7mm | 10mm | 350-700nm AR Coating | SM05 Threaded Mount | $145.58 | 3 days | |
20909-007 | 729nm | λ/2 | 12.7mm | 10mm | 650-1100nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20909-008 | 780nm | λ/2 | 12.7mm | 10mm | 650-1100nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20909-009 | 795nm | λ/2 | 12.7mm | 10mm | 650-1100nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20909-010 | 800nm | λ/2 | 12.7mm | 10mm | 650-1100nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20909-011 | 808nm | λ/2 | 12.7mm | 10mm | 650-1100nm AR Coating | SM05 Threaded Mount | $145.58 | 3 days | |
20909-012 | 850nm | λ/2 | 12.7mm | 10mm | 650-1100nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20909-013 | 1030nm | λ/2 | 12.7mm | 10mm | 650-1100nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20909-014 | 1064nm | λ/2 | 12.7mm | 10mm | 650-1100nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20909-015 | 1310nm | λ/2 | 12.7mm | 10mm | 1050-1700nm AR Coating | SM05 Threaded Mount | $145.58 | 2 Weeks | |
20909-016 | 1550nm | λ/2 | 12.7mm | 10mm | 1050-1700nm AR Coating | SM05 Threaded Mount | $145.58 | 3 days | |
20909-017 | 405nm | λ/2 | 25.4mm | 20mm | 350-700nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20909-018 | 442nm | λ/2 | 25.4mm | 20mm | 350-700nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20909-019 | 520nm | λ/2 | 25.4mm | 20mm | 350-700nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20909-020 | 532nm | λ/2 | 25.4mm | 20mm | 350-700nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20909-021 | 633nm | λ/2 | 25.4mm | 20mm | 350-700nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 2 Weeks | |
20909-022 | 729nm | λ/2 | 25.4mm | 20mm | 650-1100nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20909-023 | 780nm | λ/2 | 25.4mm | 20mm | 650-1100nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20909-024 | 795nm | λ/2 | 25.4mm | 20mm | 650-1100nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20909-025 | 800nm | λ/2 | 25.4mm | 20mm | 650-1100nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 2 Weeks | |
20909-026 | 808nm | λ/2 | 25.4mm | 20mm | 650-1100nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20909-027 | 850nm | λ/2 | 25.4mm | 20mm | 650-1100nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20909-028 | 1030nm | λ/2 | 25.4mm | 20mm | 650-1100nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20909-029 | 1053nm | λ/2 | 25.4mm | 20mm | 650-1100nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 2 Weeks | |
20909-030 | 1064nm | λ/2 | 25.4mm | 20mm | 650-1100nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 3 days | |
20909-031 | 1310nm | λ/2 | 25.4mm | 20mm | 1050-1700nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 2 Weeks | |
20909-032 | 1550nm | λ/2 | 25.4mm | 20mm | 1050-1700nm AR Coating | Dia 25.4mm Retaining Ring | $178.78 | 2 Weeks | |
20909-033 | 405nm | λ/2 | 50.8mm | 45mm | 350-700nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20909-034 | 442nm | λ/2 | 50.8mm | 45mm | 350-700nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20909-035 | 488nm | λ/2 | 50.8mm | 45mm | 350-700nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20909-036 | 520nm | λ/2 | 50.8mm | 45mm | 350-700nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20909-037 | 532nm | λ/2 | 50.8mm | 45mm | 350-700nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20909-038 | 633nm | λ/2 | 50.8mm | 45mm | 350-700nm AR Coating | SM2 Threaded Mount | $257.78 | 3 days | |
20909-039 | 729nm | λ/2 | 50.8mm | 45mm | 650-1100nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20909-040 | 780nm | λ/2 | 50.8mm | 45mm | 650-1100nm AR Coating | SM2 Threaded Mount | $257.78 | 3 days | |
20909-041 | 795nm | λ/2 | 50.8mm | 45mm | 650-1100nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20909-042 | 800nm | λ/2 | 50.8mm | 45mm | 650-1100nm AR Coating | SM2 Threaded Mount | $257.78 | 3 days | |
20909-043 | 808nm | λ/2 | 50.8mm | 45mm | 650-1100nm AR Coating | SM2 Threaded Mount | $257.78 | 3 days | |
20909-044 | 850nm | λ/2 | 50.8mm | 45mm | 650-1100nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20909-045 | 1030nm | λ/2 | 50.8mm | 45mm | 650-1100nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20909-046 | 1053nm | λ/2 | 50.8mm | 45mm | 650-1100nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20909-047 | 1064nm | λ/2 | 50.8mm | 45mm | 650-1100nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20909-048 | 1310nm | λ/2 | 50.8mm | 45mm | 1050-1700nm AR Coating | SM2 Threaded Mount | $257.78 | 2 Weeks | |
20909-049 | 1550nm | λ/2 | 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 standard 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).
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 Half Wave Plates, which are designed to introduce precisely a 1/2 wavelength (a half wavelength) retardation between two orthogonal polarization components of light. The liquid crystal polymer true zero order waveplates or retarders can be used to rotate the polarization direction of the entering lights when light is incident at 45° to the fast (or slow) axis of the 1/2 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 half Waveplates. Our polymer half wave plates are excellent for conversion between linear and circular polarization as well as corrections of elliptical polarization. For the stocked polymer half wavelength waveplates, numerous design wavelengths ranging from 405nm to 1550nm are available, and we provide multiple standard sizes including diameters 12.7mm (1/2”), 25.2mm (1”), and 50.8mm (2”). More custom designs are accessible upon requests.
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 Half Waveplates or Half Wave Length Plates
A Half Waveplate, also known as a Half Wavelength Plate, is a kind of optical retarder that alters the polarization state of light by introducing a phase difference of 180° (or π radians) between two orthogonal polarization components of a light wave. This is achieved through the birefringent properties of the material used to manufacture the waveplate. Lights entering birefringent materials are resolved into two components, each experiencing a different refractive index (the ordinary refractive index and the extraordinary refractive index) and hence traveling at different speeds. The thickness of the waveplate is precisely designed so that the difference in optical path length between the slow and the fast components equals half the wavelength of the incident light.
The primary effect of a half-waveplate is the rotation of the polarization direction of linearly polarized light. When normally incident linearly polarized light enters the half-waveplate with its polarization axis oriented at an angle θ to the optical axis of the waveplate, the half-waveplate rotates the polarization direction by 2θ upon exiting. This function makes half-waveplates particularly useful for controlling the polarization state in various optical systems. For instance, they are commonly used to rotate the polarization angle in laser setups and align polarization with optical components.
In addition to linearly polarized light, a half-waveplate can also change the polarization state of circularly or elliptically polarized light. For circularly polarized light, the half-waveplate converts it into the opposite handedness (e.g., from right-handed to left-handed circular polarization and vice versa). For elliptically polarized light, the waveplate changes the orientation of the ellipse without affecting its eccentricity. These transformations are governed by the input polarization state, the alignment of the waveplate’s optical axis, and the thickness of the waveplate.
Common Specifications:
Materials | Liquid Crystal Polymer and UV Fused Silica Windows | Retardance | λ/2 |
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 |