Noise effect on 2D photoluminescence decay analysis using the RATS method in a single-pixel camera configuration
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F22%3A00569065" target="_blank" >RIV/61389021:_____/22:00569065 - isvavai.cz</a>
Alternative codes found
RIV/46747885:24220/22:00010200
Result on the web
<a href="https://opg.optica.org/oe/fulltext.cfm?uri=oe-30-8-12654&id=470959" target="_blank" >https://opg.optica.org/oe/fulltext.cfm?uri=oe-30-8-12654&id=470959</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/OE.450613" target="_blank" >10.1364/OE.450613</a>
Alternative languages
Result language
angličtina
Original language name
Noise effect on 2D photoluminescence decay analysis using the RATS method in a single-pixel camera configuration
Original language description
Using a random temporal signal for sample excitation (RATS method) is a new, capable approach to measuring photoluminescence (PL) dynamics. The method can be used in single-point measurement (0D), but also it can be converted to PL decay imaging (2D) using a single-pixel camera configuration. In both cases, the reconstruction of the PL decay and PL snapshot is affected by ubiquitous noise. This article provides a detailed analysis of the noise effect on the RATS method and possible strategies for its suppression. We carried out an extensive set of simulations focusing on the effect of noise introduced through the random excitation signal and the corresponding PL waveform. We show that the PL signal noise level is critical for the method. Furthermore, we analyze the role of acquisition time, where we demonstrate the need for a non-periodic excitation signal. We show that it is beneficial to increase the acquisition time and that increasing the number of measurements in the single-pixel camera configuration has a minimal effect above a certain threshold. Finally, we study the effect of a regularization parameter used in the deconvolution step, and we observe that there is an optimum value set by the noise present in the PL dataset. Our results provide a guideline for optimization of the RATS measurement, but we also study effects generally occurring in PL decay measurements methods relying on the deconvolution step.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
<a href="/en/project/EF16_026%2F0008390" target="_blank" >EF16_026/0008390: Partnership for excellence in superprecise optics</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Optics Express
ISSN
1094-4087
e-ISSN
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Volume of the periodical
30
Issue of the periodical within the volume
8
Country of publishing house
US - UNITED STATES
Number of pages
16
Pages from-to
12654-12669
UT code for WoS article
000781729800039
EID of the result in the Scopus database
2-s2.0-85128175064