In this article, we report the use of randomly structured light illumination for chemical imaging of molecular distribution based on Raman microscopy with improved image resolution. Random structured basis images generated from temporal and spectral characteristics of the measured Raman signatures were superposed to perform structured illumination microscopy (SIM) with the blind-SIM algorithm. For experimental validation, Raman signatures corresponding to Rhodamine 6G (R6G) in the waveband of 730–760 nm and Raman shift in the range of 1096–1634 cm−1 were extracted and reconstructed to build images of R6G. The results confirm improved image resolution using the concept and hints at super-resolution by almost twice better than the diffraction-limit.
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14 October 2021
Research Article|
October 11 2021
Super-resolved Raman microscopy using random structured light illumination: Concept and feasibility
Special Collection:
Chemical Imaging
Hongki Lee
;
Hongki Lee
1
School of Electrical and Electronic Engineering, Yonsei University
, Seoul 03722, South Korea
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Hajun Yoo;
Hajun Yoo
1
School of Electrical and Electronic Engineering, Yonsei University
, Seoul 03722, South Korea
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Gwiyeong Moon;
Gwiyeong Moon
1
School of Electrical and Electronic Engineering, Yonsei University
, Seoul 03722, South Korea
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Kar-Ann Toh
;
Kar-Ann Toh
1
School of Electrical and Electronic Engineering, Yonsei University
, Seoul 03722, South Korea
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Kentaro Mochizuki;
Kentaro Mochizuki
2
Department of Pathology and Cell Regulation, Kyoto Prefectural University of Medicine
, Kyoto 602-8566, Japan
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Katsumasa Fujita
;
Katsumasa Fujita
3
Department of Applied Physics, Osaka University
, Osaka 565-0871, Japan
and Advanced Photonics and Biosensing Open Innovation Laboratory, AIST-Osaka University
, Osaka 565-0871, Japan
4
Transdimensional Life Imaging Division, Institute of Open and Transdisciplinary Research Initiatives, Osaka University
, Osaka 565-0871, Japan
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Donghyun Kim
Donghyun Kim
a)
1
School of Electrical and Electronic Engineering, Yonsei University
, Seoul 03722, South Korea
a)Author to whom correspondence should be addressed: kimd@yonsei.ac.kr
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a)Author to whom correspondence should be addressed: kimd@yonsei.ac.kr
Note: This paper is part of the JCP Special Topic on Chemical Imaging.
J. Chem. Phys. 155, 144202 (2021)
Article history
Received:
July 20 2021
Accepted:
September 24 2021
Citation
Hongki Lee, Hajun Yoo, Gwiyeong Moon, Kar-Ann Toh, Kentaro Mochizuki, Katsumasa Fujita, Donghyun Kim; Super-resolved Raman microscopy using random structured light illumination: Concept and feasibility. J. Chem. Phys. 14 October 2021; 155 (14): 144202. https://doi.org/10.1063/5.0064082
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