Ni D, Späth M, Klämpfl F, Schmidt M, Hohmann M (2023)
Publication Type: Journal article
Publication year: 2023
Book Volume: 31
Pages Range: 25747-52762
Journal Issue: 16
DOI: 10.1364/OE.491475
In this study, it is shown that the dynamics of the lasing threshold and the intensity saturation of a diffusive random laser can be visualized by one spectral feature: the peak wavelength shift (tunability). The varied ink concentration and pump energy were utilized to experimentally induce the peak shift and the lasing threshold dynamics. It was found that the peak wavelength progressively turns from blueshift to redshift upon crossing the lasing threshold. A unique random laser threshold regime instead of a threshold point is revealed. This threshold regime was also compared with those deduced from the replica symmetry breaking and the Lévy statistics, both are the state-of-the-art methods to predict the behavior of a complex system. All three results show the high agreement in terms of unveiling the lasing nature of the random lasers.
APA:
Ni, D., Späth, M., Klämpfl, F., Schmidt, M., & Hohmann, M. (2023). Threshold behavior and tunability of a diffusive random laser. Optics Express, 31(16), 25747-52762. https://dx.doi.org/10.1364/OE.491475
MLA:
Ni, Dongqin, et al. "Threshold behavior and tunability of a diffusive random laser." Optics Express 31.16 (2023): 25747-52762.
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