LMIRcam : an L/M-band imager for the LBT combined focus
2008
The L/M-band mid-InfraRed Camera (LMIRcam) will use a mid-wave (5.1 μm cut-off) Teledyne Imaging Systems
HgCdTe HAWAII 1-RG array to image the coherently combined (Fizeau) focus of the Large Binocular Telescope's
twin 8.4-meter primary mirrors generated by the University of Arizona's beam combiner - the Large Binocular
Telescope Interferometer (LBTI). The 1024x1024 array will have a pixel scale of 10.9 milliarcsec (mas) per
pixel and a field of view of 10"x10". The highest achievable angular resolution will be 26mas (34mas) for
3.6 μm (4.8 μm). LMIRcam will operate in parallel with the Nulling Infrared Camera (NIC), sharing the same
Dewar. In addition to a suite of broad and narrow-band filters, LMIRcam will contain grisms for low-resolution
spectroscopy, and serve as a test-bed for novel pupil masks to enable high-contrast imaging. The opto-mechanical
design, anticipated performance, and a sample of potential science applications are presented. LMIRcam is funded
by the National Science Foundation and the University of Virginia.
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