Design and manufacturing of high-performance notch filters

Uwe Schallenberg; Beatrix Ploss; Marc Lappschies; Stefan Jakobs

doi:10.1117/12.856580

21 July 2010 Design and manufacturing of high-performance notch filters

Uwe Schallenberg, Beatrix Ploss, Marc Lappschies, Stefan Jakobs

Proceedings Volume 7739, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation; 77391X (2010) https://doi.org/10.1117/12.856580
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

Rugate designs for the realization of notch filters are well known in the literature. The required deposition of gradient index layers is difficult to manufacture. In our approach we apply the equivalent index theory to replace the gradient index profile of a notch filter design. We produce single and multiple notch filters with plasma ion-assisted deposition and broad-band optical monitoring. As examples, a 500nm notch filter for the GREGOR telescope and a 589nm notch filter for the GALACSI instrument of the VLT are discussed. Additionally, a 4-line multiple notch filter and a 218nm notch filter made for fluorescence spectroscopy applications are presented.

Citation Download Citation

Uwe Schallenberg, Beatrix Ploss, Marc Lappschies, and Stefan Jakobs "Design and manufacturing of high-performance notch filters", Proc. SPIE 7739, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation, 77391X (21 July 2010); https://doi.org/10.1117/12.856580

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