Cryogenic LED pixel-to-frequency mapper for kinetic inductance detector arrays
arXiv:1707.03874 · doi:10.1063/1.4994170
Abstract
We present a cryogenic wafer mapper based on light emitting diodes (LEDs) for spatial mapping of a large microwave kinetic inductance detector (MKID) array. In this scheme, an array of LEDs, addressed by DC wires and collimated through horns onto the detectors, is mounted in front of the detector wafer. By illuminating each LED individually and sweeping the frequency response of all the resonators, we can unambiguously correspond a detector pixel to its measured resonance frequency. We have demonstrated mapping a 76.2 mm 90-pixel MKID array using a mapper containing 126 LEDs with 16 DC bias wires. With the frequency to pixel-position correspondence data obtained by the LED mapper, we have found a radially position-dependent frequency non-uniformity < 1.6% over the 76.2 mm wafer. Our LED wafer mapper has no moving parts and is easy to implement. It may find broad applications in superconducting detector and quantum computing/information experiments.
arXiv commentaccepted by J. Appl. Phys. 2017
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Cited by in corpus (6)
- Increased multiplexing of superconducting microresonator arrays by post-characterization adaptation of the on-chip capacitors
- Preflight Characterization of the BLAST-TNG Receiver and Detector Arrays
- Tile-and-trim micro-resonator array fabrication optimized for high multiplexing factors
- A Scalable Cryogenic LED Module for Selectively Illuminating Kinetic Inductance Detector Arrays
- Development of an MKID frequency-to-pixel LED mapper for SPT-3G+
- Cosmic ray susceptibility of the Terahertz Intensity Mapper detector arrays