Karl Lambrecht Corporation

4204 N. Lincoln Ave., Chicago, IL 60618.

Phone : 773-472-5442 / Fax : 773-472-2724

email : sales@klccgo.com / website : www.klccgo.com

crystal polarizers

retardation devices

scramblers

thin film polarizers

anti-reflection coatings

rotary stages

 

Home Page
Price List
CALCITE POLARIZERS
Glan Taylor
Glan Laser

Glan Thompson
UV Glan Thompson
Brewster Angle
Glan Thompson Beam Splitting
Glan Laser Combining Splitting
Glass Calcite Rochon
Wollaston
Beam Displacer
IR Plate
MAGNESIUM FLUORIDE POLARIZERS
Rochon
CRYSTAL QUARTZ POLARIZERS
Rochon
Wollaston
RETARDATION DEVICES
Crystal Quartz
Magnesium Fluoride
Achromatic
Mica
Fresnel Rhomb
Babinet Soleil Compensator
Fixed Rotator
SCRAMBLER
Calcite Scrambler
Quartz Scrambler
Magnesium Fluoride Scrambler
THIN FILMS
Narrow Band Polarizing Cube
Broad Band Polarizing Cube
Thin Film Optical Isolator
Thin Film Beam Displacer
Anti Reflection Coating
MOUNTING DEVICES
Rotary Stage
GLASS COMPONENTS
Coupling Prism

CRYSTAL QUARTZ WOLLASTON / ROCHON

 

Crystal quartz Wollaston and Rochon polarizers are made of two prisms of crystal quartz which are cemented for use from 350 nm to about 2700 nm. These types of polarizers are used for applications where small beam separations are required. The largest beam separations available in standard crystal quartz Wollastons and Rochons are 2 degrees and 1 degree respectively. Smaller beam separations are available on special order. Beam separation is dependent on wavelength. In a Rochon, one of the prisms needs to have it's optic axis perpendicular to the entrance  face. Because of optical activity in crystal quartz, the incident beam should first traverse this component. The arrow marked on its mount indicates the required beam direction in the crystal quartz Rochon. In the case of the Wollaston, either of the two polished ends can be used as the entrance face of the polarizer. Crystal quartz polarizers have an extinction ratio of at least 10^-3.

 

            

Crystal Quartz Rochon

Crystal Quartz Wollaston

Specifications :

 
surface flatness    : quarter wave @ 633 nm over the clear aperture
surface quality  : 40 - 20 scratch dig

transmission ( uncoated )

 : cemented - > 85% from 350 to 2500nm
  optically contacted - > 80% from 200 to 350 nm, > 85% from 350 to 2500 nm
    please visit Anti Reflection Coating page for reflectivity plots of available coatings

 

Crystal quartz is a natural occurring as well as synthetically grown positive ( Ne > No ) uniaxial crystal which is optically active i.e. it rotates the plane of polarization of linearly polarized input beam travelling along the crystal optic axis . Due to this property, a crystal quartz Rochon can be used in one direction only which is marked on the mount by an arrow as shown in the left diagram above. Because of it's relatively low birefringence, it is not feasible to fabricate a crystal quartz Glan type polarizer.

 
 

Crystal Quartz Wollaston / Rochon

Catalog Number

Clear Aperture

Diameter (mm)

Angular

Separation

In The Visible

(degrees)

Mount Dimensions

( Inches)

Catalog

Number

Clear

Aperture

Diameter

(mm)

Angular

Separation

In The Visible

(degrees)

Outside

Diameter

+/- .0015

Length

+/- .007
MWQ12-05 12 0.5 .998 .750 MRQ12-025 12 0.25
MWQ19-05 19 0.5 1.373 .875 MRQ19-025 19 0.25
MWQ25-05 25 0.5 1.873 .875 MRQ25-025 25 0.25
MWQ32-05 32 0.5 2.248 1.000 MRQ32-025 32 0.25
MWQ12-1 12 1 .998 .750 MRQ12-05 12 0.5
MWQ19-1 19 1 1.373 1.250 MRQ19-05 19 0.5
MWQ25-1 25 1 1.873 1.500 MRQ25-05 25 0.5
MWQ32-1 32 1 2.248 1.750 MRQ32-05 32 0.5
MWQ12-2 12 2 .998 1.375 MRQ12-1 12 1
MWQ19-2 19 2 1.373 2.000 MRQ19-1 19 1
MWQ25-2 25 2 1.873 2.500 MRQ25-1 25 1
MWQ32-2 32 2 2.248 3.000 MRQ32-1 32 1