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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BH - Optics, masers and lasers

OECD FORD branch

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Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2011

Confidentiality

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

Name of the periodical

Optics Express

ISSN

1094-4087

e-ISSN

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Volume of the periodical

2011 Oct

Issue of the periodical within the volume

10

Country of publishing house

US - UNITED STATES

Number of pages

16

Pages from-to

20347-63

UT code for WoS article

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EID of the result in the Scopus database

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