Stray light analysis and testing of a MODE lens telescope

Youngsik Kim, Marcos Esparza, Zichan Wang, Nicholas Brar, Heejoo Choi, Daewook Kim, Daniel Apai, Tom D. Milster

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


The stray light analysis and testing of multiple-order-diffraction engineered (MODE) lens telescope is an essential step in the evaluation of optical imaging performance of the telescope. The MODE primary lens has a multi-order diffractive (MOD) front surface and single-order (M = 1) diffractive Fresnel lens (DFL) rear surface. Both of MOD and DFL surfaces have four transitions between five annular zones. Stray light can be minimized to prevent unwanted photons from reaching the science instrument detectors. Stray light is evaluated on an optical testbed to test the polychromatic performance with a supercontinuum laser.

Original languageEnglish (US)
Title of host publicationOptical Manufacturing and Testing XIV
EditorsDaewook Kim, Heejoo Choi, Heidi Ottevaere, Rolf Rascher
ISBN (Electronic)9781510654266
StatePublished - 2022
EventOptical Manufacturing and Testing XIV 2022 - San Diego, United States
Duration: Aug 22 2022Aug 24 2022

Publication series

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


ConferenceOptical Manufacturing and Testing XIV 2022
Country/TerritoryUnited States
CitySan Diego


  • Diffractive optical element
  • focal dispersion
  • polychromatic performance
  • stray light

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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