NIR and VIS solid state random laser emission dynamics

Iñaki Iparraguirre; Jon Azkargorta; Sara García-Revilla; Rolindes Balda; Joaquín Fernández

doi:10.1117/12.3016541

20 June 2024 NIR and VIS solid state random laser emission dynamics

Iñaki Iparraguirre, Jon Azkargorta, Sara García-Revilla, Rolindes Balda, Joaquín Fernández

Proceedings Volume 13003, Fiber Lasers and Glass Photonics: Materials through Applications IV; 1300305 (2024) https://doi.org/10.1117/12.3016541
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

This contribution presents a combined experimental and theoretical study on solid state random lasers in the visible (VIS) and near-infrared (NIR) domains operating in the diffusive regime under ultrafast pumping. NIR random lasers are based on Nd-doped crystal powders, while the VIS random laser is a ground powder of a Rhodamine B-doped hybrid compound incorporated into a di-ureasil host. A precise time-resolved analysis performed by using spatial filtering allows us to study the time evolution of local and spatially integrated random laser emissions. The study shows that the dynamics of both types of systems can be described by a similar rate equation model based on a statistical distribution of photon trajectories in an amplifying medium.

Conference Presentation

Citation Download Citation

Iñaki Iparraguirre, Jon Azkargorta, Sara García-Revilla, Rolindes Balda, and Joaquín Fernández "NIR and VIS solid state random laser emission dynamics", Proc. SPIE 13003, Fiber Lasers and Glass Photonics: Materials through Applications IV, 1300305 (20 June 2024); https://doi.org/10.1117/12.3016541

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