Abstract
SuperSpec is an ultra-compact spectrometer-on-a-chip for mm and submm wavelength astronomy. Its very small size, wide spectral bandwidth, and highly multiplexed detector readout will enable construction of powerful multi-object spectrometers for observations of galaxies at high redshift. SuperSpec is a filter bank with planar, lithographed, superconducting transmission line resonator filters and lumped-element kinetic inductance detectors made from Titanium Nitride. We have built an 81 detector prototype that operates in the 195-310 GHz band. The prototype has a wide-band metal feed horn with a transition to microstrip that feeds the filter bank. The prototype has demonstrated optical filter bank channels with a range of resolving powers from 300 to 700, measured fractional frequency noise of 10-17 Hz -1 at 1 Hz.
Original language | English (US) |
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Pages (from-to) | 657-662 |
Number of pages | 6 |
Journal | Journal of Low Temperature Physics |
Volume | 176 |
Issue number | 5-6 |
DOIs | |
State | Published - Sep 2014 |
Keywords
- Kinetic inductance detectors
- Millimeter-wavelength
- Resonators
- Spectroscopy
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Materials Science(all)
- Condensed Matter Physics