Development of image mappers for hyperspectral biomedical imaging applications

Robert T. Kester, Liang Gao, Tomasz S. Tkaczyk

Research output: Contribution to journalArticle

Abstract

A new design and fabrication method is presented for creating large-format (>100 mirror facets) image mappers for a snapshot hyperspectral biomedical imaging system called an image mapping spectrometer (IMS). To verify this approach a 250 facet image mapper with 25 multiple-tilt angles is designed for a compact IMS that groups the 25 subpupils in a 5 × 5 matrix residing within a single collecting objective's pupil. The image mapper is fabricated by precision diamond raster fly cutting using surface-shaped tools. The individual mirror facets have minimal edge eating, tilt errors of <1mrad, and an average roughness of 5:4nm.

Original languageEnglish (US)
Pages (from-to)1886-1899
Number of pages14
JournalApplied Optics
Volume49
Issue number10
DOIs
StatePublished - Apr 1 2010

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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