In
order to assist customers in effectively selecting waveplates for their application,
CASIX's engineers have complied Waveplate Designer software to calculate the main
properties of waveplate, such as thickness, orders, spectral bandwidth, temperature
bandwidth and angular bandwidth. The interface of the Waveplate Designer is enclosed for
your reference. Dual-wavelength waveplate and archomatic waveplate can be also calculated.
Ask us for more information about Waveplate Designer if needed.You can download it
from here.
Ture-Zero, Low, Multi, Zero order waveplates
In practice, the thickness required to produce true-zero order waveplate is about tens of micron according to the wavelength, which is too thin to manufacture. For this reason, multiple order waveplate often provides a convenient means of producing the required retardation. CASIX provides two kinds of multiple orders waveplates- low order and multi order which are classified by the thickness. The retardation value of a multiple order waveplate is strongly dependent on temperature, wavelength, angle of incidence and degree of collimation. Zero order waveplates do not have this dependency. A zero order waveplate is constructed of two multiple order waveplates (optically contacted, cemented or airspaced) with their axes crossed. Thus, the effect of the first plate is canceled by the second, except for the residual difference between them. The following Table based on 532 nm, l/4 waveplates with retardation tolerance <l/100 gives you a rough idea of the comparison among all the orders waveplates.
| Order of Waveplate | Multi | Low | Ture-Zero | Zero | |
| Cemented | Air-spaced | ||||
| Thickness(mm) | =1 | 0.3 | <0.1 | ||
| Spectral bandwidth(nm) | 0.5 | 1.5 | 30 | ||
| Temperature bandwidth(c) | 10 | 38 | 735 | ||
| Angular bandwidth | 2.5 | 4.5 | 20 | 3 | 3 |
| Damage threshold(MW/cm2) | >500 | >500 | >10 | >10 | >500 |
CASIX's Waveplates, including octadic-wave (
l/8), quarter-wave (l/4), half-wave (l/2) and full-wave (l) plates, are widely used in synthesis and analysis of light in various states of polarization. The standard specification of CASIX's waveplates are listed following for your reference.The standard waveplate wavelengths (nm) of CASIX's waveplates
| 248 | 266 | 308 | 325 | 331 | 337 |
| 347 | 251 | 354 | 363 | 413 | 441 |
| 457 | 476 | 488 | 510 | 514 | 530 |
| 532 | 543 | 557 | 573 | 589 | 594 |
| 612 | 682.8 | 647 | 694 | 752 | 780 |
| 800 | 830 | 850 | 870 | 905 | 1050 |
| 1064 | 1152 | 1300 | 1310 | 1550 | 2020 |
Other wavelengths within the ranger of 200-2300nm are also available upon requirment.
The standard specification of CASIX's waveplates
| Material | Crystal Quartz |
| Dimension | +0.0, -0.2mm |
| Wavefront distortion | <l/8@632.8 |
| Retardation tolerance | <l/500 |
| Parallelism | <1 arc second |
| Surface quality | 20/10 scratch and dig |
| Clear aperture | >80% |
| AR coating | R<0.2% at central wavelength |
