Energy resolution and efficiency of phonon-mediated kinetic inductance detectors for light detection

被引：36

作者：

Cardani, L. ^{[1
,2
]}

Colantoni, I. ^{[1
]}

Cruciani, A. ^{[1
,3
]}

Di Domizio, S. ^{[4
,5
]}

Vignati, M. ^{[1
,3
]}

Bellini, F. ^{[1
,3
]}

Casali, N. ^{[1
,3
]}

Castellano, M. G. ^{[6
]}

Coppolecchia, A. ^{[1
]}

Cosmelli, C. ^{[1
,3
]}

Tomei, C. ^{[3
]}

机构：

[1] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[2] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[3] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy

[4] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy

[5] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy

[6] CNR, Ist Foton & Nanotecnol, I-00156 Rome, Italy

来源：

APPLIED PHYSICS LETTERS | 2015年 / 107卷 / 09期

基金：

欧洲研究理事会;

关键词：

SIGNALS; ARRAYS;

D O I：

10.1063/1.4929977

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The development of sensitive cryogenic light detectors is of primary interest for bolometric experiments searching for rare events like dark matter interactions or neutrino-less double beta decay. Thanks to their good energy resolution and the natural multiplexed read-out, Kinetic Inductance Detectors (KIDs) are particularly suitable for this purpose. To efficiently couple KIDs-based light detectors to the large crystals used by the most advanced bolometric detectors, active surfaces of several cm(2) are needed. For this reason, we are developing phonon-mediated detectors. In this paper, we present the results obtained with a prototype consisting of four 40 nm thick aluminum resonators patterned on a 2 x 2 cm(2) silicon chip, and calibrated with optical pulses and X-rays. The detector features a noise resolution sigma(E) = 154 +/- 7 eV and an (18 +/- 2)% efficiency. (C) 2015 AIP Publishing LLC.

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