Work

Temperature-controlled spectral tuning of a single wavelength polymer-based solid-state random laser

Year: 2023

Type: article

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 a low-threshold, single-mode random lasing with an excellent side lobe 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.

Source: Optics Express

DOI: 10.1364/oe.505162

Authors: Bhupesh Kumar, Sebastian A. Schulz, Patrick Sebbah

Institutions: Bar-Ilan University, University of St Andrews

Language: English

Topic: Random lasers and scattering media

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270