Tey, Lian Seng and Muniandy, S. V. and Chong, Wu Yi (2024) Photon-count fluctuations of spontaneous parametric down conversion exhibit long-range correlations. Journal of the Optical Society of America B-Optical Physics, 41 (9). pp. 2070-2076. ISSN 0740-3224, DOI https://doi.org/10.1364/JOSAB.527547.
Full text not available from this repository.Abstract
We investigate the fluctuation dynamics of photons generated by spontaneous parametric down conversion (SPDC) using detrended fluctuation analysis (DFA). SPDC photon pairs were generated via a periodically poled potassium titanyl phosphate waveguide, pumped by a 405 nm continuous-wave laser. The scaling exponents obtained from DFA reveal that SPDC photons exhibit long-range correlations at high pump power regimes. The average scaling exponent of DFA increases from 0.67 to 0.97 as the laser diode drive current increases, indicating the existence of long-range correlations. Our analysis concluded that the scaling exponent of aggregated time series is correlated to the number of SPDC photon pairs. (c) 2024 Optica Publishing Group
| Item Type: | Article |
|---|---|
| Funders: | Malaysian Ministry of Higher Education Fundamental Research Grant Scheme (FRGS/1/2020/STG07/UM/01/2) |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics |
| Divisions: | Faculty of Science > Department of Physics Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 12 Feb 2025 08:49 |
| Last Modified: | 12 Feb 2025 08:49 |
| URI: | http://eprints.um.edu.my/id/eprint/47486 |
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