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

Autor: R. Gayathri, C. S. Suchand Sandeep, C. Vijayan, V. M. Murukeshan
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Nanomaterials, Vol 13, Iss 17, p 2466 (2023)
Druh dokumentu: article
ISSN: 2079-4991
DOI: 10.3390/nano13172466
Popis: 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.
Databáze: Directory of Open Access Journals