# 18th International Workshop on Low Temperature Detectors (LTD-18)

22-26 July 2019
Milano
Europe/Rome timezone

## Fundamental Properties of Frequency Multiplexed Superconducting Nanowire Kinetic Inductance Detector Array

25 Jul 2019, 17:45
1h 15m
Piazza Città di Lombardia (Milano)

### Piazza Città di Lombardia

#### Milano

Piazza Città di Lombardia, 1, 20124 Milano MI
Poster Low Temperature Detector Development and Physics

### Speaker

Jacob Glasby (Arizona State University)

### Description

Kinetic inductance detectors (KIDs) are being implemented in more telescopes due chiefly to their excellent sensitivity and natural multiplexability. We have integrated a superconducting nanowire into the resonant circuits, increasing the frequency response, which in turn, increases the sensitivity for single photon detection. Analyzing the frequency response as a function of optical power, we characterize an array of frequency multiplexed superconducting nanowire single photon detectors (SNSPDs). In this paper, we report on the detector's defining properties, including count rate as a function of optical loading, and the response at low optical power, in a thermal quasi particle dominated state. An analysis is given on the quasi particle lifetime, $\tau_{qp}$, using the quasi particle rate equation.

Less than 5 years of experience since completion of Ph.D Y Y

### Primary author

Jacob Glasby (Arizona State University)

### Co-authors

Adrian Sincalir (Arizona State University) Hamdi Mani (Arizona State University) Philip Mauskopf (Arizona State University)

### Presentation Materials

 jglasby_LTD18_Poster.pdf jglasby_LTD18_slides.pdf