Temperature-controlled spectral tuning of a single wavelength polymer-based solid-state random laser
Abstract
We demonstrate temperature-controlled spectral tunability of a partially-pumped single-wavelength random laser in a solid-state random laser based on DCM (4-dicyanomethylene-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran) doped PMMA (polymethyl methacrylate) dye. By carefully shaping the spatial profile of the pump, we first achieve low-threshold, single-mode random lasing with excellent side lobes rejection. Notably, we show how temperature-induced changes in the refractive index of the PMMA-DCM layer result in a blue shift of this single lasing mode. We demonstrate spectral tunability over an 8nm-wide bandwidth.
Citation
Kumar , B , Schulz , S A & Sebbah , P 2024 , ' Temperature-controlled spectral tuning of a single wavelength polymer-based solid-state random laser ' , Optics Express , vol. 32 , no. 3 , pp. 4317-4326 . https://doi.org/10.1364/OE.505162
Publication
Optics Express
Status
Peer reviewed
ISSN
1094-4087Type
Journal article
Description
Funding. Engineering and Physical Sciences Research Council (EPSRC[EP/V029975/1]); PICS-ALAMO; Planning and Budgeting Committee of the Council for Higher Education of Israel (2015-2018); United States-Israel Binational Science Foundation (BSF #2022158, NSF/BSF #2015694, NSF/BSF #2021811); Israel Science Foundation (1871/15,2074/15, 2630/20).Collections
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