Spectral fingerprint of laser emission from rhodamine 6g infused male Indian Peafowl tail feathers
Abstract The light-emissive properties of dye-infused barbules from Indian Peafowl (Pavo cristatus) tail feathers is investigated at high intensities pumped at $$532\,$$ nm. The dye-infused barbules were prepared by repeatedly wetting the eyespot with dye solution and allowing it to dry. While wet,...
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Nature Portfolio
2025-07-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-04039-8 |
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| author | Anthony Fiorito D. Ryan Sheffield Hengzhou Liu Erfan Nasirzadeh Orang Nathan J. Dawson |
| author_facet | Anthony Fiorito D. Ryan Sheffield Hengzhou Liu Erfan Nasirzadeh Orang Nathan J. Dawson |
| author_sort | Anthony Fiorito |
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| description | Abstract The light-emissive properties of dye-infused barbules from Indian Peafowl (Pavo cristatus) tail feathers is investigated at high intensities pumped at $$532\,$$ nm. The dye-infused barbules were prepared by repeatedly wetting the eyespot with dye solution and allowing it to dry. While wet, and after wet/dry cycling, across multiple parts of the same feather as well as across different feather samples, a highly conserved set of laser wavelengths was observed. While most feedback mechanisms in biological materials have been attributed to random lasers, the results presented in this article are inconsistent with this mechanism, and they suggest a critical structure inside the barbules which persists through different color regions of the eyespot. The laser thresholds were found to be below the random laser threshold for these materials, and the laser emission indicates that feedback structures with small gain volumes can be measured using this technique. This study also illustrates how persistent small-scale structures in biological materials act as low-quality resonators whose dispersion imprints on subsequent laser emission. |
| format | Article |
| id | doaj-art-2b62184513944df2b23e40d458d5bf66 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-2b62184513944df2b23e40d458d5bf662025-08-20T03:37:31ZengNature PortfolioScientific Reports2045-23222025-07-0115111010.1038/s41598-025-04039-8Spectral fingerprint of laser emission from rhodamine 6g infused male Indian Peafowl tail feathersAnthony Fiorito0D. Ryan Sheffield1Hengzhou Liu2Erfan Nasirzadeh Orang3Nathan J. Dawson4Physics, Florida Polytechnic UniversityPhysics, Florida Polytechnic UniversityPhysics, Florida Polytechnic UniversityPhysics, Youngstown State UniversityPhysics, Florida Polytechnic UniversityAbstract The light-emissive properties of dye-infused barbules from Indian Peafowl (Pavo cristatus) tail feathers is investigated at high intensities pumped at $$532\,$$ nm. The dye-infused barbules were prepared by repeatedly wetting the eyespot with dye solution and allowing it to dry. While wet, and after wet/dry cycling, across multiple parts of the same feather as well as across different feather samples, a highly conserved set of laser wavelengths was observed. While most feedback mechanisms in biological materials have been attributed to random lasers, the results presented in this article are inconsistent with this mechanism, and they suggest a critical structure inside the barbules which persists through different color regions of the eyespot. The laser thresholds were found to be below the random laser threshold for these materials, and the laser emission indicates that feedback structures with small gain volumes can be measured using this technique. This study also illustrates how persistent small-scale structures in biological materials act as low-quality resonators whose dispersion imprints on subsequent laser emission.https://doi.org/10.1038/s41598-025-04039-8LaserFeedbackPhotonic structureBiophotonics |
| spellingShingle | Anthony Fiorito D. Ryan Sheffield Hengzhou Liu Erfan Nasirzadeh Orang Nathan J. Dawson Spectral fingerprint of laser emission from rhodamine 6g infused male Indian Peafowl tail feathers Scientific Reports Laser Feedback Photonic structure Biophotonics |
| title | Spectral fingerprint of laser emission from rhodamine 6g infused male Indian Peafowl tail feathers |
| title_full | Spectral fingerprint of laser emission from rhodamine 6g infused male Indian Peafowl tail feathers |
| title_fullStr | Spectral fingerprint of laser emission from rhodamine 6g infused male Indian Peafowl tail feathers |
| title_full_unstemmed | Spectral fingerprint of laser emission from rhodamine 6g infused male Indian Peafowl tail feathers |
| title_short | Spectral fingerprint of laser emission from rhodamine 6g infused male Indian Peafowl tail feathers |
| title_sort | spectral fingerprint of laser emission from rhodamine 6g infused male indian peafowl tail feathers |
| topic | Laser Feedback Photonic structure Biophotonics |
| url | https://doi.org/10.1038/s41598-025-04039-8 |
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