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arXiv · 2208.10538

2D tunable all-solid-state random laser in the visible

Bhupesh Kumar·Ran Homri·Patrick Sebbah
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Abstract

A two-dimensional (2D) solid-state random laser emitting in the visible is demonstrated, in which optical feedback is provided by a controlled disordered arrangement of air-holes in a dye-doped polymer film. We find an optimal scatterer density for which threshold is minimum and scattering is the strongest. We show that the laser emission can be red-shifted by either decreasing scatterer density or increasing pump area. We show that spatial coherence is easily controlled by varying pump area. Such a 2D random laser provides with a compact on-chip tunable laser source and a unique platform to explore non-Hermitian photonics in the visible

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Bhupesh Kumar, Ran Homri, Patrick Sebbah. 2022-08-22. 2D tunable all-solid-state random laser in the visible. https://arxiv.org/abs/2208.10538

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