Savart Plate

Crystals product

Optical products

Lens

Prism

Laser component

Test equipment

Glan-Laser Polarizer >

Glan-Taylor Polarizer >

Glan-Thompson Polarizer >

Rochon Polarizer >

Wollaston Polarizer >

Savart Plate >

The savart plate comprises two beam displace plates with their optical axies at 45 degree to the surface normal, rotated 90 degree with respect to each other.

An incident beam propagating through plate 1 is resolved into ordinary and extraordinary beams which are displaced from each other in 1^st plane. Upon entering plate 2, the ordinary beam becomes an extraordinary beam, and vice-versa. Splitting again takes place in the 2^nd plane, which is orthogonal to the 1^st. The result is two emerging beams displaced along a diagonal. The displacement is root 2 times of each plate. The optical path difference between the 2 beams is zero for normal incidence.

The beam displacement produced by the savart plate is 0.075 times to the total thickness for Calcite at 500nm, and 0.074 times to the total thickness for a-BBO at 300nm.

When order savart plate, specify the aperture and total thickness are required.

Part No.	Material	Spectral range (nm)	C.A. (mm)	Peak Trans (%)
SPL1310	a -BBO	220-3000	φ10	90
SPL1315			φ15	90
SPL1320			φ20	90
SPL1325			φ25	90
SPL1330			φ30	90
SPL1410	Calcite	350-2300	φ10	90
SPL1415			φ15	90
SPL1420			φ20	90
SPL1425			φ25	90

Specifications

Material:	a –BBO, Calcite, LiNbO3, YVO4, Quartz
Surface Quality:	20-10 scratch and dig
Dimensions Tolerance:	±0.1 mm
Wavefront Distortion:	< l /4@632.8nm
Beam Deviation:	< 1 arc minutes
Coating:	AR/AR@ 400-700nm

You can define the thickness follow our P/N like SPL1320-5, means the total thickness is 5mm.