The thickness of a true zero-order quartz plate is very thin, it is very easily damaged. In order to solve this problem, we can cement the thin quartz plate on a BK7 substrate to increase the strength.
355nm,532nm, 632.8nm, 780nm,808nm, 850nm, 980nm,1064nm, 1310nm, 1480nm, 1550nm
Achromatic waveplate is similar to zero-order waveplate except that the two plates are made from different birefringent crystals.
Since the dispersion of the birefringence of two materials is different, it is possible to specify the retardation values at a broad wavelength range. So, the retardation will be less sensitive to wavelength change. In other words, it can be used at a broadband wavelength range.
Air spaced zero order waveplate is constructed by two quartz plates installed in a mount, to form a air gap between the two quartz plates.
The difference in thickness between the two plates determines the retardation. Zero order waveplates offer a substantially lower dependence on temperature and wavelength change than multiorder waveplates.
Air Spaced
Double Retardation Plates
Broad Spectral Bandwidth
Wide Temperature bandwidth
Hight Damage Threshold
AR coated and Mounted
Specifications
| Material |
Crystal Quartz |
| Dimension Tolerance |
+0.0/-0.1mm |
| Wavefront Distortion |
λ/[email protected] |
| Retardation Tolerance |
λ/300 |
| Parallelism |
<1 arc second |
| Surface Quality |
20/10 scratch and dig |
| Clear Aperture |
>90% central area |
| Standard Wave |
Quarter-wave(λ/4), Half-wave(λ/2) |
| AR Coating |
R<0.25%@central wavelength |
Standard wavelength:
266nm, 355nm,532nm, 632.8nm, 780nm,808nm, 850nm, 980nm,1064nm, 1310nm, 1480nm, 1550nm
Other Wavelength Available
.Optically Contacted Zero Order Waveplate
The optically Contacted zero order waveplate is constructed by two quartz plates with their fast axis crossed, the two plates are constructed by the optically contacted method, and the optical path is epoxy free.
The difference in thickness between the two plates determines the retardance. Zero-order waveplates offer a substantially lower dependence on temperature and wavelength change than multi-order waveplates.
Optically Contacted
Double Retardation Plates
Broad Spectral Bandwidth
Wide Temperature bandwidth
Hight Damage Threshold
Specifications
| Material |
Crystal Quartz |
| Dimension Tolerance |
+0.0/-0.1mm |
| Wavefront Distortion |
λ/[email protected] |
| Retardation Tolerance |
λ/300 |
| Parallelism |
<1 arc second |
| Surface Quality |
20/10 scratch and dig |
| Clear Aperture |
>90% central area |
| Standard Wave |
Quarter-wave(λ/4), Half-wave(λ/2) |
| AR Coating |
R<0.25%@central wavelength |
Standard wavelength:
266nm, 355nm,532nm, 632.8nm, 780nm,808nm, 850nm, 980nm,1064nm, 1310nm, 1480nm, 1550nm
Other Wavelength Available
Cemented Zero Order Waveplate
Cemented zero order waveplate is constructed by two quartz plates with their fast axis crossed, the two plates are cemented by UV epoxy.
The difference in thickness between the two plates determines the retardance. Zero-order waveplates offer a substantially lower dependence on temperature and wavelength change than multi-order waveplates.
Better Temperature Bandwidth
Wide Wavelength Bandwidth
Both Sides AR Coated
Specifications
| Material |
Crystal Quartz |
| Dimension Tolerance |
+0.0/-0.1mm |
| Wavefront Distortion |
λ/[email protected] |
| Retardation Tolerance |
λ/300 |
| Parallelism |
<1 arc second |
| Surface Quality |
20/10 scratch and dig |
| Clear Aperture |
>90% central area |
| Standard Wave |
Quarter-wave(λ/4), Half-wave(λ/2) |
| AR Coating |
R<0.25%@central wavelength |
Standard wavelength:
266nm, 355nm,532nm, 632.8nm, 780nm,808nm, 850nm, 980nm,1064nm, 1310nm, 1480nm, 1550nm
Other Wavelength Available
Dual Wavelength Waveplate
This waveplate is a special kind of multi-order waveplate. Dual-wavelength waveplate is designed to be used in dual-wavelength setups, for example, it can be operated as a quarter waveplate @1064nm and as a half waveplate @532nm at the same time.
Dual-wavelength waveplate is always used to manage the states of polarization of laser beams to obtain maximum conversion efficiency.
Specifications
| Material |
Crystal Quartz |
| Dimension Tolerance |
+0.0/-0.1mm |
| Wavefront Distortion |
λ/[email protected] |
| Retardation Tolerance |
λ/300 |
| Parallelism |
<1 arc second |
| Surface Quality |
20/10 scratch and dig |
| Clear Aperture |
>90% central area |
| AR Coating |
R<0.5%@two wavelengths |
Wavelength Combination:
λ/2@1064nm+λ@532nm; λ@1064nm+λ/2@532nm
λ/2@1064nm+λ/4@532nm; λ/4@1064nm+λ/2@532nm
Other Wavelength Availabl
Low-Order Waveplate
Multiple order waveplate means the retardance of a light path will undergo a certain number of full wavelength shifts in addition to the fractional design retardance.
The thickness of a multi-order waveplate is always around 0.5mm. Compared with zero-order waveplate, multi-order waveplate is more sensitive to wavelength and temperature changes. However, they are less expensive and widely used in many applications where the increased sensitivities are not critical.
Specifications
| Material |
Crystal Quartz |
| Dimension Tolerance |
+0.0/-0.1mm |
| Wavefront Distortion |
λ/[email protected] |
| Retardation Tolerance |
λ/300 |
| Parallelism |
<1 arc second |
| Surface Quality |
20/10 scratch and dig |
| Clear Aperture |
>90% central area |
| Standard Wave |
Quarter-wave(λ/4), Half-wave(λ/2) |
| AR Coating |
R<0.25%@central wavelength |
Standard Wavelength:
266nm,355nm,532nm, 632.8nm, 780nm,808nm, 850nm, 980nm,1064nm, 1310nm, 1480nm, 1550nm
Other Wavelength Available
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