A novel compact 4-channel beam splitter based on a K\"osters-type prism
Jochen Greiner (1), Uwe Laux (2), ((1) Max-Planck Institute for, extraterrestrial Physics, 85478 Garching, Germany, (2) Th\"uringer, Landessternwarte Tautenburg, 07778 Tautenburg, Germany)
TL;DR
This paper presents a compact 4-channel beam splitter utilizing dichroic coatings and total internal reflection, inspired by K"osters' interference prism, enabling enhanced gamma-ray burst detection in space telescopes.
Contribution
It introduces a novel beam splitter design that combines existing optical principles for improved space-based gamma-ray observations.
Findings
Enables doubling of high-redshift gamma-ray burst detections within 2 years
Offers a compact and efficient design for space telescopes
Utilizes dichroic coatings and total internal reflection in a new configuration
Abstract
We introduce a novel compact 4-channel beam splitter which is based on a combination of dichroic coatings and internal total reflection, similar in concept to the interference double-prism invented by K\"osters 90 years ago. Used with a rapidly-slewing 50 cm telescope in space, this would allow to double the presently known gamma-ray bursts at high (>5) redshift within 2 years.
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