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19 June 2024 Organic chromophores for real-time multicolor RGB and IR lasing emission
Jaroslaw Mysliwiec
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Proceedings Volume PC13013, Organic Electronics and Photonics: Fundamentals and Devices IV; PC130130P (2024) https://doi.org/10.1117/12.3017038
Event: SPIE Photonics Europe, 2024, Strasbourg, France
Abstract
Nowadays, there are many ideas for the realization of distributed feedback (DFB) lasers in either a mono- and bilayer system with a permanent or temporary holographic pattern. Because feedback in DFB lasers can be provided by gain and/or refractive index periodic perturbations, there may be several approaches to their realization, however, dynamic tuning is limited. In our studies we show that using simple systems based on a single organic dye-doped polymeric thin films for distributed feedback, we can get fully reversible spectral tuning of 150 nm. As active compounds we have applied novel push-pull luminescent pyrazoline, diphenylaminofluorene and thiophene derivatives, with different acceptor groups. Integration of such luminescent dyes with transparent polymeric medium allows fabricating real-time lasing tunability in the visible region and first biological window (650-950 nm). Also Excited-State Intramolecular Proton Transfer (ESIPT) compounds, have attracted our considerable attention. Such structure enabled real-time red-green-blue (RGB) switching of emission, both in solution and solid-state, providing white laser light emission.
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Jaroslaw Mysliwiec "Organic chromophores for real-time multicolor RGB and IR lasing emission", Proc. SPIE PC13013, Organic Electronics and Photonics: Fundamentals and Devices IV, PC130130P (19 June 2024); https://doi.org/10.1117/12.3017038
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KEYWORDS
RGB color model
Chromophores
Polymer thin films
Polymers
Solid state lasers
Solid state physics
Switching
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