Anomalous Lasing Behavior in a Nonlinear Plasmonic Random Laser
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866914903639457792 |
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| author | Yadav, Renu Pal, Sourabh Jana, Subhajit Ray, Samit K. Brundavanam, Maruthi M. N, Shivakiran Bhaktha B. |
| author_facet | Yadav, Renu Pal, Sourabh Jana, Subhajit Ray, Samit K. Brundavanam, Maruthi M. N, Shivakiran Bhaktha B. |
| contents | An unprecedented double-threshold lasing behavior has been observed in a plasmonic random laser composed of Au nanoislands decorated on vertically standing ZnO nanorods, infiltrated with dye-doped polymer matrix. The strong coupling of random laser modes to plasmonic nanocavities results in a dominant absorption of the random laser emission, leading to the first unusual lasing threshold. At higher pump fluences, the nonlinear optical behavior of the Au nanoislands induces a second lasing threshold. Various statistical tools have been employed to analyze the intensity fluctuations of the random laser modes, validating this unique lasing behavior. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_03536 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Anomalous Lasing Behavior in a Nonlinear Plasmonic Random Laser Yadav, Renu Pal, Sourabh Jana, Subhajit Ray, Samit K. Brundavanam, Maruthi M. N, Shivakiran Bhaktha B. Optics An unprecedented double-threshold lasing behavior has been observed in a plasmonic random laser composed of Au nanoislands decorated on vertically standing ZnO nanorods, infiltrated with dye-doped polymer matrix. The strong coupling of random laser modes to plasmonic nanocavities results in a dominant absorption of the random laser emission, leading to the first unusual lasing threshold. At higher pump fluences, the nonlinear optical behavior of the Au nanoislands induces a second lasing threshold. Various statistical tools have been employed to analyze the intensity fluctuations of the random laser modes, validating this unique lasing behavior. |
| title | Anomalous Lasing Behavior in a Nonlinear Plasmonic Random Laser |
| topic | Optics |
| url | https://arxiv.org/abs/2408.03536 |