Low optical power reference detector implemented in the validation of two independent techniques for calibrating photon-counting detectors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F11%3A%230000444" target="_blank" >RIV/00177016:_____/11:#0000444 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.ncbi.nlm.nih.gov/pubmed/21997045" target="_blank" >http://www.ncbi.nlm.nih.gov/pubmed/21997045</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1364/OE.19.020347" target="_blank" >10.1364/OE.19.020347</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Low optical power reference detector implemented in the validation of two independent techniques for calibrating photon-counting detectors

Popis výsledku v původním jazyce

We introduce a technique for measuring detection efficiency that is traceable to the primary standard, the cryogenic radiometer, through a reference silicon photodiode trap detector. The trap detector, used in conjunction with a switched integrator amplifier, can measure signals down to the 0.1 pW (3 x 10^5 photons second-1) level with 0.1% uncertainty in a total integration time of 300 seconds. This provides a convenient calibration standard for measurements at these levels across the optical spectrum(UV - near IR). A second technique is also described, based on correlated photons produced via parametric down-conversion. This can be used to directly measure detection efficiency in the photon counting regime, and provides a route for expanding the formulation of the candela in terms of photon flux to enable it to address the needs of emerging quantum optical technologies and applications. The two independent techniques were cross-validated by a comparison carried out at 702.2 nm, whic

Název v anglickém jazyce

Low optical power reference detector implemented in the validation of two independent techniques for calibrating photon-counting detectors

Popis výsledku anglicky

We introduce a technique for measuring detection efficiency that is traceable to the primary standard, the cryogenic radiometer, through a reference silicon photodiode trap detector. The trap detector, used in conjunction with a switched integrator amplifier, can measure signals down to the 0.1 pW (3 x 10^5 photons second-1) level with 0.1% uncertainty in a total integration time of 300 seconds. This provides a convenient calibration standard for measurements at these levels across the optical spectrum(UV - near IR). A second technique is also described, based on correlated photons produced via parametric down-conversion. This can be used to directly measure detection efficiency in the photon counting regime, and provides a route for expanding the formulation of the candela in terms of photon flux to enable it to address the needs of emerging quantum optical technologies and applications. The two independent techniques were cross-validated by a comparison carried out at 702.2 nm, whic

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

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Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Optics Express

ISSN

1094-4087

e-ISSN

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Svazek periodika

2011 Oct

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

16

Strana od-do

20347-63

Kód UT WoS článku

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EID výsledku v databázi Scopus

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