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

 

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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

FRESNEL RHOMB RETARDERS

 

Standard quarter and half wave Fresnel rhomb retarders are optimized for 272 nm ( Fused Quartz ), 380 nm ( FK5 ), 580 nm ( BK7 ) and 1080 nm ( BK7 ). The design of these is based on the principle that total internal reflection produces a phase delay between -p ( parallel to plane of incidence ) and -s ( perpendicular to plane of incidence ) vibration components. A quarter wave rhomb is a single parallelepiped and causes a beam displacement ( offset error ) which is approximately 1.3 times the aperture. Half wave rhombs are made of two quarter wave rhombs and are supplied cemented, optically contacted or air-spaced. Air-spaced rhombs are always mounted while others can be supplied unmounted as well. For various anti-reflection coating options, please refer to the Anti-Reflection Coating page on this web site.

 

quarter wave Fresnel rhomb retarder

half wave Fresnel rhomb retarder

retardation in waves vs wavelength in nanometers of four standard half wave rhomb retarders ( theoretical )

   
   

Specifications :

 

surface flatness : at least quarter wave @ 633 nm over the clear aperture
surface quality : 40-20 scratch dig
reflectivity per surface : uncoated about 4%; BB coating 1.5% average; HEAR coated .7% average 
    please visit Anti Reflection Coatings page for reflectivity plots of available coatings

 

 

ACHROMATIC QUARTER WAVE FRESNEL RHOMB RETARDERS

Catalog Number

Clear 

Aperture

Diameter 

(mm)

Offset

mm

Substrate

+/- 2%

Retardation

Error Range

nm

Mount Dimensions

( Inches)

Outside

Diameter

+/- .002

Length

+/- .005

MFRS4-10-272 10 17.36 Fused Qtz 237-307 1.750 1.035
MFRS4-10-380 10 17.51 FK5 310-550 1.750 1.035
MFRS4-10-580 10 18.34 BK7 330-1000 1.750 1.160
MFRS4-10-1080 10 17.85 BK7 500-2000 1.750 1.080
MFRS4-15-580 15 27.17 BK7 330-1000 2.500 1.715
MFRS4-20-380 20 34.06 FK5 310-550 3.250 2.010
MFRS4-20-580 20 35.66 BK7 330-1000 3.250 2.000
MFRS4-20-1080 20 34.71 BK7 500-2000 3.250 2.100
 

ACHROMATIC HALF WAVE FRESNEL RHOMB RETARDERS

( CEMENTED )

Catalog Number

Clear 

Aperture

Diameter 

(mm)

Substrate

+/- 2%

Retardation

Error Range

nm

Mount Dimensions

( Inches)

Outside

Diameter

+/- .002

Length

+/- .005

MFRC2-10-272 10 Fused Qtz 237-307 2.250 2.000
MFRC2-10-380 10 FK5 310-550 1.750 2.000
MFRC2-10-580 10 BK7 330-1000 2.250 2.250
MFRC2-10-1080 10 BK7 500-2000 2.250 2.125
MFRC2-15-580 15 BK7 330-1000 3.375 3.250
MFRC2-20-380 20 FK5 310-550 4.375 3.750
MFRC2-20-580 20 BK7 330-1000 4.375 4.250
MFRC2-20-1080 20 BK7 500-2000 4.375 4.000
 

ACHROMATIC HALF WAVE FRESNEL RHOMB RETARDERS

( OPTICALLY CONTACTED )

Catalog Number

Clear 

Aperture

Diameter 

(mm)

Substrate

+/- 2%

Retardation

Error Range

nm

Mount Dimensions

( Inches)

Outside

Diameter

+/- .002

Length

+/- .005

MFRO2-10-272 10 Fused Qtz 237-307 2.250 2.000
MFRO2-10-380 10 FK5 310-550 1.750 2.000
MFRO2-10-580 10 BK7 330-1000 2.250 2.250
MFRO2-10-1080 10 BK7 500-2000 2.250 2.125
MFRO2-15-580 15 BK7 330-1000 3.375 3.250
MFRO2-20-380 20 FK5 310-550 4.375 3.750
MFRO2-20-580 20 BK7 330-1000 4.375 4.250
MFRO2-20-1080 20 BK7 500-2000 4.375 4.000
 

ACHROMATIC HALF WAVE FRESNEL RHOMB RETARDERS

( AIR SPACED )

Catalog Number

Clear 

Aperture

Diameter 

(mm)

Substrate

+/- 2%

Retardation

Error Range

nm

Mount Dimensions

( Inches)

Outside

Diameter

+/- .002

Length

+/- .005

MFRA2-10-272 10 Fused Qtz 237-307 2.250 2.000
MFRA2-10-380 10 FK5 310-550 1.750 2.000
MFRA2-10-580 10 BK7 330-1000 2.250 2.250
MFRA2-10-1080 10 BK7 500-2000 2.250 2.125
MFRA2-15-580 15 BK7 330-1000 3.375 3.250
MFRA2-20-380 20 FK5 310-550 4.375 3.750
MFRA2-20-580 20 BK7 330-1000 4.375 4.250
MFRA2-20-1080 20 BK7 500-2000 4.375 4.000