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Structural and optical properties of Nd:YAB-nanoparticle-doped PDMS elastomers for random lasers

Antsar R. Hlil, Jyothis Thomas, Yalina Garcia-Puente, Jean-Sebastien Boisvert, Bismarck C. Lima, Ando Rakotonandrasana, Lauro J. Q. Maia, Amirhossein Tehranchi, Sébastien Loranger, Anderson S. L. Gomes, Younes Messaddeq and Raman Kashyap

Article (2021)

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We report the structural and optical properties of Nd:YAB (NdxY1−x Al3(BO3)4)-nanoparticle-doped PDMS elastomer films for random lasing (RL) applications. Nanoparticles with Nd ratios of x = 0.2, 0.4, 0.6, 0.8, and 1.0 were prepared and then incorporated into the PDMS elastomer to control the optical gain density and scattering center content over a wide range. The morphology and thermal stability of the elastomer composites were studied. A systematic investigation of the lasing wavelength, threshold, and linewidth of the laser was carried out by tailoring the concentration and optical gain of the scattering centers. The minimum threshold and linewidth were found to be 0.13 mJ and 0.8 nm for x = 1 and 0.8. Furthermore, we demonstrated that the RL intensity was easily tuned by controlling the degree of mechanical stretching, with strain reaching up to 300%. A strong, repeatable lasing spectrum over ~ 50 cycles of applied strain was observed, which demonstrates the high reproducibility and robustness of the RL. In consideration for biomedical applications that require long-term RL stability, we studied the intensity fluctuation of the RL emission, and confirmed that it followed Lévy-like statistics. Our work highlights the importance of using rare-earth doped nanoparticles with polymers for RL applications.

Uncontrolled Keywords

Chemistry, materials science, nanoscience and technology, optics and photonics, physics

Subjects: 2500 Electrical and electronic engineering > 2500 Electrical and electronic engineering
3100 Physics > 3100 Physics
3100 Physics > 3104 Particle physics
3100 Physics > 3110 Optics (see also Photon devices, 2505)
3100 Physics > 3111 Lasers
Department: Department of Electrical Engineering
Department of Engineering Physics
Research Center: Other
Funders: GRSNG / NSERC, Fonds de recherche du Québec—Nature et technologies (FRQNT), Merit scholarship program for foreign students (PBEEE Quebec-India), CAPES - Finance Code 001 (Brazilian agency), CNPq, FAPEG
PolyPublie URL: https://publications.polymtl.ca/9298/
Journal Title: Scientific Reports (vol. 11, no. 1)
Publisher: Springer Nature
DOI: 10.1038/s41598-021-95921-8
Official URL: https://doi.org/10.1038/s41598-021-95921-8
Date Deposited: 16 Aug 2023 10:59
Last Modified: 30 Sep 2023 20:19
Cite in APA 7: Hlil, A. R., Thomas, J., Garcia-Puente, Y., Boisvert, J.-S., Lima, B. C., Rakotonandrasana, A., Maia, L. J. Q., Tehranchi, A., Loranger, S., Gomes, A. S. L., Messaddeq, Y., & Kashyap, R. (2021). Structural and optical properties of Nd:YAB-nanoparticle-doped PDMS elastomers for random lasers. Scientific Reports, 11(1), 16803 (10 pages). https://doi.org/10.1038/s41598-021-95921-8


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