Experimental observation of anomalous supralinear response of single-photon detectors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F23%3A73618554" target="_blank" >RIV/61989592:15310/23:73618554 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.aip.org/aip/apr/article/10/1/011412/2881521/Experimental-observation-of-anomalous-supralinear" target="_blank" >https://pubs.aip.org/aip/apr/article/10/1/011412/2881521/Experimental-observation-of-anomalous-supralinear</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0106987" target="_blank" >10.1063/5.0106987</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental observation of anomalous supralinear response of single-photon detectors

Popis výsledku v původním jazyce

The linearity of single-photon detectors allows accurate optical measurements at low light levels and using non-classical light in spectroscopy, biomedical imaging, optical communication, and sensing. However, in practice, the response of single-photon detectors can exhibit intriguing nonlinear effects that may influence the performed measurements. Here, we demonstrate a direct single-source measurement of the absolute nonlinearity of single-photon detectors with unprecedented accuracy. We discover a surprising supralinear behavior of single-photon avalanche diodes and show that it cannot be explained using known theoretical models. We also fully characterize sub- and supra-linear operation regimes of superconducting nanowire single-photon detectors and uncover the supralinearity under faint continuous illumination. The results identify new detector anomalies that supersede existing knowledge of nonlinear effects at the single-photon level.

Název v anglickém jazyce

Experimental observation of anomalous supralinear response of single-photon detectors

Popis výsledku anglicky

The linearity of single-photon detectors allows accurate optical measurements at low light levels and using non-classical light in spectroscopy, biomedical imaging, optical communication, and sensing. However, in practice, the response of single-photon detectors can exhibit intriguing nonlinear effects that may influence the performed measurements. Here, we demonstrate a direct single-source measurement of the absolute nonlinearity of single-photon detectors with unprecedented accuracy. We discover a surprising supralinear behavior of single-photon avalanche diodes and show that it cannot be explained using known theoretical models. We also fully characterize sub- and supra-linear operation regimes of superconducting nanowire single-photon detectors and uncover the supralinearity under faint continuous illumination. The results identify new detector anomalies that supersede existing knowledge of nonlinear effects at the single-photon level.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Applied Physics Reviews

ISSN

1931-9401

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

18

Strana od-do

"011412-1"-"011412-18"

Kód UT WoS článku

000956985300001

EID výsledku v databázi Scopus

2-s2.0-85151056541