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Single-Pixel Fluorescence Spectroscopy Using Near-Field Dispersion for Single-Photon Counting and Single-Shot Acquisition

Title data

Tiedeck, Sofie ; Heindl, Moritz ; Kramlinger, Peter ; Naas, Julia ; Brütting, Fabian ; Kirkwood, Nicholas ; Mulvaney, Paul ; Herink, Georg:
Single-Pixel Fluorescence Spectroscopy Using Near-Field Dispersion for Single-Photon Counting and Single-Shot Acquisition.
In: ACS Photonics. Vol. 9 (2022) Issue 9 . - pp. 2931-2937.
ISSN 2330-4022
DOI: https://doi.org/10.1021/acsphotonics.2c00710

Official URL: Volltext

Project information

Project financing: This work was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) via Project 403711541. J.N. is supported by the Austrian Science Fund (FWF) Project Number F78 to Arndt von Haeseler. P.M. and N.K. acknowledge support through ARC Grant CE170100026.

Abstract in another language

Time-resolved sensing of fluorescence quanta provides exceptionally versatile information–including access to nanoscopic structure, chemical environment and nonclassical behavior of quantum emitters. Combined spectro-temporal information is typically obtained using spatial dispersion with photoelectron imaging such as streak-cameras or position-sensitive counting and, alternatively, sequential filtering with single-pixel detectors. However, such schemes require complex, expensive and low-sensitivity detectors or rely on scanning acquisition. Here, we demonstrate a single-pixel implementation of fluorescence emission spectroscopy entirely in the temporal domain compatible with (a) time-correlated single-photon counting (TCSPC) and (b) high-speed single-shot detection. Harnessing the near-field regime of the Time-Stretch Dispersive Fourier Transformation (TS-DFT), we encode spectral information via chromatic dispersion into temporal signals, and we demonstrate the retrieval of entwined information via a direct deconvolution using prior knowledge. Addressing high optical throughput for extended emitters, we introduce a high-bandwidth graded-index multimode fiber for TS-DFT. As proof-of-concept, we present rapid single-shot optical thermometry based on quantum-dot luminescence. Given its high speed, efficiency, and simplicity, we foresee broad applications for fast hyperspectral confocal fluorescence microscopy, low-light sensing, and high-throughput spectral screening.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Juniorprofessor Experimental Physics VIII - Ultrafast Dynamics > Juniorprofessor Experimental Physics VIII - Ultrafast Dynamics - Juniorprof. Dr. Georg Herink
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Juniorprofessor Experimental Physics VIII - Ultrafast Dynamics
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 30 Aug 2022 05:56
Last Modified: 19 Oct 2022 13:53
URI: https://eref.uni-bayreuth.de/id/eprint/71701