NASA NTRS · 20220000883
Absorber Optimization Study for the Terahertz Intensity Mapper (TIM)
Abstract
We discuss the design and optimization of the absorber for the long-wavelength arm of the Terahertz Intensity Mapper (TIM), a balloon-borne spectrometer employing Kinetic Inductance Detectors (KIDs). Electromagnetic simulations of our design indicate in-band absorption efficiency over 80% in both linear polarization modes. By developing custom transmission line model and mode-matching calculations, we find the absorption efficiency is affected by the absorber’s reactive part and overall shape. These insights into the operation of this design provide guidance for its optimization for low-resistance absorber. materials.
Keep this discovery
Explore connections, maps & timelines
Nie, Rong, Janssen, Reinier M.J., Bradford, Charles M., Filippini, Jeffrey P., Hailey-Dunsheath, Steven. 2020-03-08. Absorber Optimization Study for the Terahertz Intensity Mapper (TIM). https://ntrs.nasa.gov/citations/20220000883
Cite the original work for its findings. Save a collection to share your selection of sources.