Concept design of the AMT front-end optics

Sabrina Realini*, Andrey Baryshev, Michael Janssen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

The Africa Millimetre Telescope (AMT) is a project to realize the first millimeter-wave telescope in Namibia desert to participate in the Event Horizon Telescope (EHT) network and make higher-resolution pictures of black holes possible. We made a preliminary design of the optics to combine the beams of the first light receivers that will enable simultaneous observations of the same area of the sky in four frequency bands. The system is based on the use of dichroics and it has been designed following a geometrical optics approximation to guarantee that all beams will follow the same optical path.

Original languageEnglish
Title of host publicationMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII
EditorsJonas Zmuidzinas, Jian-Rong Gao, Jian-Rong Gao
PublisherSPIE
ISBN (Electronic)9781510675278
DOIs
Publication statusPublished - 2024
EventMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII 2024 - Yokohama, Japan
Duration: 18-Jun-202422-Jun-2024

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume13102
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII 2024
Country/TerritoryJapan
CityYokohama
Period18/06/202422/06/2024

Keywords

  • Africa Millimetre Telescope
  • Beam combiner
  • Frequency selective surfaces
  • Multi-frequency receiver
  • Optics design
  • Sub-millimeter astronomy

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