Development of image mappers for hyperspectral biomedical imaging applications.
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 x 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 <1 mrad, and an average roughness of 5.4 nm.
Kester
Robert T
RT
Department of Bioengineering, Rice University, 6100 Main Street, Houston, Texas 77005, USA.
Gao
Liang
L
Tkaczyk
Tomasz S
TS
D004867:Equipment Design; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation*; D008856:Microscopy, Fluorescence / Q000295:instrumentation / Q000706:statistics & numerical data; D055096:Optical Devices; D055620:Optical Phenomena; D013057:Spectrum Analysis / Q000295:instrumentation* / Q000706:statistics & numerical data