Documentation

[Rainbowline]

Image Slicer

Prototype #1

Basic Data

Manufacturer H.Kaufmann Präzisionsoptik (D)

Date September 1997

Material Quartz glass (Homosil)

Wavefront (transmission) max lambda/10

Angle deviations max 3 arcmin

Thickness slicer plate 209+/-0.5 um

Total wedge angle 2 arcmin

Wavefront aberrations

The interferogram (double pass Michelson) gives a wavefront aberations (transmission) less lambda/10 @ 633 nm.

[IS1 Interferogram]

Efficiency

The efficiency was measured between the unsliced (top) and the sliced (bottom) images and therefore is a purely "geometrical" efficiency. For both beams an efficiency of about 95% was measured in the V and the Gunn Z filters.
For the total efficiency, the internal transmission and the surface reflections have to be considered. With the used mulitlayer coating a total efficiency of 90% is reached (tbc).

[IS1 Efficiency]

[Rainbowline]

If you have any comments on the FEROS project, please send me a mail .

FEROS homepage / A.Kaufer@lsw.uni-heidelberg.de

Last modified: Fri Jan 26 12:20:29 MET 2001

Manufacturer	H.Kaufmann Präzisionsoptik (D)
Date	September 1997
Material	Quartz glass (Homosil)
Wavefront (transmission)	max lambda/10
Angle deviations	max 3 arcmin
Thickness slicer plate	209+/-0.5 um
Total wedge angle	2 arcmin