COUPLING PRISMS

High refractive index coupling prisms are used to transfer light from one component to another.

Specifications:

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

SF6 coupling prism

refractive index of SF6
wavelength in nm refractive index
365.0 1.89716
404.7 1.86436
435.8 1.84705
480.0 1.82970
486.1 1.82775
546.1 1.81265
587.6 1.80518
589.3 1.80491
643.8 1.79750
656.3 1.79609
706.5 1.79117
852.1 1.78159
1014.0 1.77520

5 mm and 10 mm Rutile coupling prisms

refractive index of Rutile
wavelength in nm

-o refractive

index

-e refractive

index

435.8 2.853 3.216
491.6 2.725 3.051
496.0 2.718 3.042
546.1 2.652 2.958
5.770 2.623 2.921
579.1 2.621 2.919
690.7 2.555 2.836
708.2 2.548 2.826
1014.0 2.484 2.747
1529.6 2.454 2.710
2000 2.399  
2500 2.387  
3000 2.380  
3500 2.367  
4000 2.350  
4500 2.322  
5000 2.290  
5500 2.200