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Article

Random Laser Action in Dye-Doped Polymer Media with Inhomogeneously Distributed Particles and Gain

by
Takashi Okamoto
* and
Masaki Mori
Department of Physics and Information Technology, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka, Fukuoka 820-8502, Japan
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(17), 3499; https://doi.org/10.3390/app9173499
Submission received: 23 July 2019 / Revised: 12 August 2019 / Accepted: 21 August 2019 / Published: 24 August 2019
(This article belongs to the Special Issue Recent Advances in Statistical Optics and Plasmonics)
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Abstract

The properties of random lasing are investigated for bubble-structure (BS) dye-doped polymer random media in which non-scattering and no-gain regions are distributed. Experimental results demonstrate that, for BS random media, spectral narrowing and a decrease in the number of spectral spikes occur for incoherent and coherent random lasing, respectively, resulting in an increase in the spectral peak intensity in both cases. These features were observed owing to the differences in the diffusion properties of the pumping and emitted lights.
Keywords: multiple scattering; random laser; bubble structure; polymer gain medium multiple scattering; random laser; bubble structure; polymer gain medium

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MDPI and ACS Style

Okamoto, T.; Mori, M. Random Laser Action in Dye-Doped Polymer Media with Inhomogeneously Distributed Particles and Gain. Appl. Sci. 2019, 9, 3499. https://doi.org/10.3390/app9173499

AMA Style

Okamoto T, Mori M. Random Laser Action in Dye-Doped Polymer Media with Inhomogeneously Distributed Particles and Gain. Applied Sciences. 2019; 9(17):3499. https://doi.org/10.3390/app9173499

Chicago/Turabian Style

Okamoto, Takashi, and Masaki Mori. 2019. "Random Laser Action in Dye-Doped Polymer Media with Inhomogeneously Distributed Particles and Gain" Applied Sciences 9, no. 17: 3499. https://doi.org/10.3390/app9173499

APA Style

Okamoto, T., & Mori, M. (2019). Random Laser Action in Dye-Doped Polymer Media with Inhomogeneously Distributed Particles and Gain. Applied Sciences, 9(17), 3499. https://doi.org/10.3390/app9173499

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