Benchmarking of Fluorescence Lifetime Measurements using Time-Frequency Correlated Photons

• URL: http://arxiv.org/abs/2501.08870v1
• Date: Wed, 15 Jan 2025 15:39:44 GMT
• Title: Benchmarking of Fluorescence Lifetime Measurements using Time-Frequency Correlated Photons
• Authors: Tobias Bernd Gäbler, Nitish Jain, Patrick Then, Christian Eggeling, Markus Gräfe, Valerio Flavio Gili,
• Abstract summary: In this paper, we examine the limitations of an innovative method of fluorescence lifetime using time-frequency correlated photons generated by a continuous-wave source. We also compare this technique with state-of-the-art FLIM and observed an improved figure-of-merit.
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• Abstract: The investigation of fluorescence lifetime became an important tool in biology and medical science. So far, established methods of fluorescence lifetime measurements require the illumination of the investigated probes with pulsed or amplitude-modulated light. In this paper, we examine the limitations of an innovative method of fluorescence lifetime using time-frequency correlated photons generated by a continuous-wave source. For this purpose, we investigate the lifetime of IR-140 to demonstrate the functional principle and its dependencies on different experimental parameters. We also compare this technique with state-of-the-art FLIM and observed an improved figure-of-merit. Finally, we discuss the potential of a quantum advantage.

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