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Keywords = multicolour lasing

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11 pages, 2966 KiB  
Article
Multicolour Laser Emission Based on the Polystyrene Dust
by Alina Szukalska, Jaroslaw Mysliwiec and Adam Szukalski
Crystals 2023, 13(4), 629; https://doi.org/10.3390/cryst13040629 - 6 Apr 2023
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Abstract
Multicolour emission, independently of the considered mechanism, constitutes an appealing application for modern technologies and an interesting phenomenon for the various fields of science. Moreover, effective and easy colour tuning seems even more engaging. Through this contribution, we present a totally new approach [...] Read more.
Multicolour emission, independently of the considered mechanism, constitutes an appealing application for modern technologies and an interesting phenomenon for the various fields of science. Moreover, effective and easy colour tuning seems even more engaging. Through this contribution, we present a totally new approach to the organic-based system, which can provide effective and multicolour emission, including laser action. Polystyrene dust (PSd) particles play the role of the optically passive matrix for highly effective laser dyes (Coumarin 504, Coumarin 540, and DCM), which were successfully introduced into the polymer units by liquid crystals carrier. In such a way, various types of organic hybrid systems were created, starting from a single dye embedded in PSd volume, passing by two dye-component architectures, reaching the final and most complex network containing three chromophores, providing three basic tones (red, green, and blue). Moreover, by playing with an optical pumping magnitude, we were able to easily modulate colour tones/shades in a broad range, which is highly appreciated when considering human eye perception. Full article
(This article belongs to the Section Inorganic Crystalline Materials)
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