Accession Number:

ADA230247

Title:

SQUID Amplifiers for Infrared Detectors and Other Applications

Descriptive Note:

Corporate Author:

HYPRES INC ELMSFORD NY

Personal Author(s):

Report Date:

1990-12-14

Pagination or Media Count:

3.0

Abstract:

The advantages of superconducting processing circuitry for focal plane arrays include low power consumption and the possibility of integrating processing circuitry and detectors on the same substrate. The latter configuration allows for reduction in the number of leads to the readout system and therefore removes a significant bottle neck to processing the massive quantities of data coming from large IR FPAs. All signal processing steps may be executed with superconducting circuit elements. Amplification in superconducting circuitry is performed with the SQUID Superconducting Quantum Interference Device amplifier. The present phase I SBIR is being used to investigate a scheme for multiplexing many inputs into one SQUID amplifier. This will reduce the number of SQUID amplifiers needed which is a significant improvement because typical high-gain, multiturn-input SQUIDs are the largest element of superconductivity circuitry. The anticipated payoff of this research is in shrinking the size needed for superconducting circuitry that will be integrated onto IR FPAs. In addition, this method should add very little or no noise to the intrinsic detector noise, thus avoiding any degradation in sensitivity when individual detectors are integrated into the array.

Subject Categories:

  • Infrared Detection and Detectors
  • Quantum Theory and Relativity

Distribution Statement:

APPROVED FOR PUBLIC RELEASE