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Review

Lasing from Micro- and Nano-Scale Photonic Disordered Structures for Biomedical Applications

by
R. Gayathri
1,
C. S. Suchand Sandeep
1,
C. Vijayan
2,* and
V. M. Murukeshan
1,*
1
Centre for Optical and Laser Engineering, School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
2
Department of Physics, Indian Institute of Technology Madras, Chennai 600036, India
*
Authors to whom correspondence should be addressed.
Nanomaterials 2023, 13(17), 2466; https://doi.org/10.3390/nano13172466
Submission received: 26 July 2023 / Revised: 24 August 2023 / Accepted: 29 August 2023 / Published: 31 August 2023
(This article belongs to the Special Issue Nano-Photonics and Meta-Nanomaterials)
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Abstract

A disordered photonic medium is one in which scatterers are distributed randomly. Light entering such media experiences multiple scattering events, resulting in a “random walk”-like propagation. Micro- and nano-scale structured disordered photonic media offer platforms for enhanced light–matter interaction, and in the presence of an appropriate gain medium, coherence-tunable, quasi-monochromatic lasing emission known as random lasing can be obtained. This paper discusses the fundamental physics of light propagation in micro- and nano-scale disordered structures leading to the random lasing phenomenon and related aspects. It then provides a state-of-the-art review of this topic, with special attention to recent advancements of such random lasers and their potential biomedical imaging and biosensing applications.
Keywords: disordered photonics; random lasing; plasmonics; nanomaterials; bioimaging; biosensing disordered photonics; random lasing; plasmonics; nanomaterials; bioimaging; biosensing

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MDPI and ACS Style

Gayathri, R.; Suchand Sandeep, C.S.; Vijayan, C.; Murukeshan, V.M. Lasing from Micro- and Nano-Scale Photonic Disordered Structures for Biomedical Applications. Nanomaterials 2023, 13, 2466. https://doi.org/10.3390/nano13172466

AMA Style

Gayathri R, Suchand Sandeep CS, Vijayan C, Murukeshan VM. Lasing from Micro- and Nano-Scale Photonic Disordered Structures for Biomedical Applications. Nanomaterials. 2023; 13(17):2466. https://doi.org/10.3390/nano13172466

Chicago/Turabian Style

Gayathri, R., C. S. Suchand Sandeep, C. Vijayan, and V. M. Murukeshan. 2023. "Lasing from Micro- and Nano-Scale Photonic Disordered Structures for Biomedical Applications" Nanomaterials 13, no. 17: 2466. https://doi.org/10.3390/nano13172466

APA Style

Gayathri, R., Suchand Sandeep, C. S., Vijayan, C., & Murukeshan, V. M. (2023). Lasing from Micro- and Nano-Scale Photonic Disordered Structures for Biomedical Applications. Nanomaterials, 13(17), 2466. https://doi.org/10.3390/nano13172466

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