Dual-Wavelength
Waveplate |
| |
| This dual wavelength multiple order
waveplates are made a piece of quartz which has been precisely polished.
Its thickness is controlled to provide half wave retardation at
one wavelength and full wave retardation at a second wavelength.
They are offered for Nd: YAG harmonic wavelengths and can be used
to separate the harmonic beams by means of a change in their state
of polarization. A half wave plate has a net retardation of and
rotates the plane of polarization by 90. A full wave plate has a
net retardation of 2 and rotates the plane of polarization by 180.
The two harmonics will therefore emerge with crossed linear polarizations.
Optionally, these waveplates may be supplied mounted in a metal
ring. |
- Thickness:1 mm
- Single plates
- High Damage Threshold
- Low Cost
|
Specifications |
Material: |
Crystal
Quartz |
Surface
Quality |
<
10 / 5 |
Transmitted
Wavefront: |
<
/ 10 @ 633 nm |
Diameter |
< 25.4 + 0.00 / -
0.20 mm |
Thickness |
t 1.0
mm |
Polarization
state purity |
98% |
Retardation @ 1 |
/2 |
Retardation @ 2 |
|
Parallelism |
<
1.0 arcsec |
Clear
Aperture |
20.0
mm |
Mount
OD |
38.1mm |
AR Coating |
R <
0.25% per surface |
|
Half Waveplates