Bolocam
Z-Spec
SPIRE
Cal-Tech Submillimeter
Observatory MKID CCAT Waveguide
Diffraction Grating
This
is a schematic of the Waveguide Far-Infrared Spectrometer (WaFIRS)
concept. The top plate is cut away to illustrate the path of the
incoming radiation. Light from the telescope enters the parallel
plates on the left hand side via a corrugated feedhorn coupled to a
rectangular waveguide. The radiation is transmitted onto the
curved diffraction grating surface, which focuses the spectrally
dispersed light onto a linear array of bolometers. The three
colors illustrate the spectral dispersion from the incoming "white"
light.
Hardware photos: |