Issue 36, 2023

Boosting the efficiency of transient photoluminescence microscopy using cylindrical lenses

Abstract

Transient Photoluminescence Microscopy (TPLM) allows for the direct visualization of carrier transport in semiconductor materials with sub nanosecond and few nanometer resolution. The technique is based on measuring changes in the spatial distribution of a diffraction limited population of carriers using spatiotemporal detection of the radiative decay of the carriers. The spatial resolution of TPLM is therefore primarily determined by the signal-to-noise-ratio (SNR). Here we present a method using cylindrical lenses to boost the signal acquisition in TPLM experiments. The resulting asymmetric magnification of the photoluminescence emission of the diffraction limited spot can increase the collection efficiency by more than a factor of 10, significantly reducing acquisition times and further boosting spatial resolution.

Graphical abstract: Boosting the efficiency of transient photoluminescence microscopy using cylindrical lenses

Supplementary files

Article information

Article type
Paper
Submitted
23 Jūl. 2023
Accepted
30 Aug. 2023
First published
30 Aug. 2023
This article is Open Access
Creative Commons BY-NC license

Nanoscale, 2023,15, 14831-14836

Boosting the efficiency of transient photoluminescence microscopy using cylindrical lenses

A. J. Magdaleno, M. M. Cutler, J. J. Suurmond, M. Meléndez, R. Delgado-Buscalioni, M. Seitz and F. Prins, Nanoscale, 2023, 15, 14831 DOI: 10.1039/D3NR03587E

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