Waveguide Image-Slicers for ultrahigh resolution spectroscopy

被引：3

作者：

Beckert, Erik ^{[1
]}

Strassmeier, Klaus G. ^{[2
]}

Woche, Manfred ^{[2
]}

Eberhardt, Ramona ^{[1
]}

Tuennermann, Andreas ^{[1
]}

Andersen, Michael ^{[3
]}

机构：

[1] Fraunhofer Inst Appl Opt & Precis Engn, Albert Einstein Str 7, D-07745 Jena, Germany

[2] AIP, D-14482 Potsdam, Germany

[3] Univ Copenhagen, DK-2100 Copenhagen, Denmark

来源：

ADVANCED OPTICAL AND MECHANICAL TECHNOLOGIES IN TELESCOPES AND INSTRUMENTATION, PTS 1-3 | 2008年 / 7018卷

关键词：

Image-slicers; Spectrographs; LBT;

D O I：

10.1117/12.787756

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Waveguide image-slicer prototypes with resolutions up to 310.000 for the fiber fed PEPSI echelle spectrograph at the LBT and single waveguide thicknesses of down to 30 pin have been manufactured. The waveguides were macroscopically prepared, stacked Lip to an order of 7 and thinned back to square stack cross sections. A high filling ratio was achieved by realizing homogenous adhesive gaps of 4.6 mu m, using index matching adhesives for TIR within the waveguides. The image-slicer stacks can be used in immersion mode and are miniaturized to be implemented in a set of Four, measurements indicate an overall efficiency of above 80% for them.

引用

页数：8