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Photonics West
27.01.- 01.02.2018
Visit us at
Photonics West in San Francisco
Booth 4529


Low Order Retarders

Low Order Retarders

The retarders are made from a single plate. The path difference between the principal polarization axes is equal to the specified fraction of the design wavelength in addition to in integer multiple of it. The integer part is chosen in order to achieve a mechanical of thickness 0,15-0,25 mm.

The retarders are delivered in a cylindrical holder.

We manufacture low order retarders from crystalline quartz and from MgF2 Quartz is by far the most frequently used material. The quartz retarders are antireflection coated on both sides by default.

Low order plates made of MgF 2 are mainly chosen for wavelength in the mid infrared where quartz is not transparent. In contrast to quartz MgF2 does not show optical activity. This makes it suited for some applications with very high demands on the purity of the polarization. Retarders made of MgF2 are delivered without antireflection coating.

We offer low order retarders with a path difference of λ/2 or λ/4 for a large variety of standard wavelengths. Retarders designed for non-standard wavelengths are available at reasonable prices according to the price list.

Optical specifications

material quartz MgF2
spectral range 180-2700 nm 125-7000 nm
tolerance of the path difference ±3 nm ±3 nm
wavefront distortion < λ/10 < λ/10
marked direction fast axis fast axis
reflectivity <0,1% ca. 2,5%
temperature coefficient* a (typ.) -0,1 nm/K -0,1 nm/K
angular coefficient* b (typ.) 0,1 nm/deg² 0,2 nm/deg²

* Definition

standard wavelengths

The prices are valid for the following standard wavelengths.

355 nm 375 nm 390 nm 395 nm 400 nm 405 nm 425 nm 440 nm 488 nm
514 nm 532 nm 589 nm 633 nm 650 nm 670 nm 685 nm 780 nm 785 nm
790 nm 795 nm 800 nm 810 nm 830 nm 852 nm 946 nm 1030 nm 1047 nm
1053 nm 1064 nm 1083 nm 1300 nm 1320 nm 1540 nm 1550 nm 2023 nm

Price

format
10 mm 15 mm 20 mm 25 mm
free aperture [mm] 9,5 14,5 19,5 24,5
mount diameter [mm] 25 25 30 40
mount length [mm] 10 10 15 15
Art. No., retardance λ/2
RLQ 2.10 RLQ 2.15 RLQ 2.20 RLQ 2.25
Art. No., retardance λ/4
RLQ 4.10 RLQ 4.15 RLQ 4.20 RLQ 4.25
1 pieces in €
265,- 455,- 740,- 1172,-
2-5 pieces in €
248,- 423,- 692,- 967,-
6-10 pieces in €
225,- 381 637,- 831,-

non- standard wavelengths

Price

format
10 mm 15 mm 20 mm 25 mm
free aperture [mm] 9,5 14,5 19,5 24,5
mount diameter [mm] 25 25 30 40
mount length [mm] 10 10 15 15
Art. No., retardance λ/2
RLQ 2.10 RLQ 2.15 RLQ 2.20 RLQ 2.25
Art. No., retardance λ/4
RLQ 4.10 RLQ 4.15 RLQ 4.20 RLQ 4.25
1 pieces in €
450,- 772,- 1120,- 1700,-
2-5 pieces in €
407,- 713,- 1008,- 1403,-
6-10 pieces in €
343,- 535 796,- 1107,-

standard wavelengths

The prices are valid for the following standard wavelengths.

532 nm 633 nm 10 64nm 3500 nm 4750 nm 6000 nm

Price

format
10 mm 15 mm 20 mm 25 mm
free aperture [mm] 9,5 14,5 19,5 24,5
mount diameter [mm] 25 25 30 40
mount length [mm] 10 10 15 15
Art. No., retardance λ/2
RZM 2.10 RZM 2.15 RZM 2.20 RZM 2.25
Art. No., retardance λ/4
RZM 4.10 RZM 4.15 RZM 4.20 RZM 4.25
1 pieces in €
403,- 570,- 867,- 1583,-
2-5 pieces in €
346,- 514,- 776,- 1294,-
6-10 pieces in €
293,- 439,- 672,- 1101,-

non- standard wavelengths

Price

format
10 mm 15 mm 20 mm 25 mm
free aperture [mm] 9,5 14,5 19,5 24,5
mount diameter [mm] 25 25 30 40
mount length [mm] 10 10 15 15
Art. No., retardance λ/2
RZM 2.10 RZM 2.15 RZM 2.20 RZM 2.25
Art. No., retardance λ/4
RZM 4.10 RZM 4.15 RZM 4.20 RZM 4.25
1 pieces in €
604,- 854,- 1168,- 2065,-
2-5 pieces in €
508,- 720,- 1009,- 1680,-
6-10 pieces in €
398,- 585,- 832,- 1101,-

Price custom version

Anthee Größen (bis 100 mm) auf Anfrage




Anthee retardanceen (z.B. l/8-Platten) auf Anfrage




retardancesplatten for 2 Wellenlängen auf Anfrage




Adapter for mount diameter 30 mm und 40 mm Seite 59




Unmounte Platten auf Anfrage




AR-Coating for MgF2-Platten auf Anfrage




heightre Genauigkeit des Gangunterschieds auf Anfrage