SuperSpec is an on-chip filter-bank spectrometer designed for wideband moderate-resolution spectroscopy at millimeter wavelengths, employing TiN kinetic inductance detectors. SuperSpec technology will enable large-format spectroscopic integral field units suitable for high-redshift line intensity mapping and multi-object spectrographs. In previous results we have demonstrated noise performance in individual detectors suitable for photon noise limited ground-based observations at excellent mm-wave sites. In these proceedings we present the noise performance of a full R∼275 spectrometer measured using deployment-ready RF hardware and software. We report typical noise equivalent powers through the full device of ∼3×10−16W/Hz at expected sky loadings, which are photon noise dominated. Based on these results, we plan to deploy a six-spectrometer demonstration instrument to the Large Millimeter Telescope in early 2020.
@article{arxiv.2002.04542,
title = {Full-Array Noise Performance of Deployment-Grade SuperSpec mm-wave On-Chip Spectrometers},
author = {K. S. Karkare and P. S. Barry and C. M. Bradford and S. Chapman and S. Doyle and J. Glenn and S. Gordon and S. Hailey-Dunsheath and R. M. J. Janssen and A. Kovacs and H. G. LeDuc and P. Mauskopf and R. McGeehan and J. Redford and E. Shirokoff and C. Tucker and J. Wheeler and J. Zmuidzinas},
journal= {arXiv preprint arXiv:2002.04542},
year = {2020}
}
Comments
8 pages, 5 figures. Accepted by the Journal of Low Temperature Physics (Proceedings of the 18th International Workshop on Low Temperature Detectors)