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Rough Fabry-Perot cavity: a vastly multi-scale numerical problem
Tetiana Slipchenko1, Jaime Abad-Arredondo2,3, Antonio Consoli1,4
1Instituto de Ciencia de Materiales de Madrid (ICMM), Consejo Superior de Investigaciones Científicas (CSIC), Calle Sor Juana Inés de la Cruz, 3, 28049 Madrid, Spain.
Nanophotonics (Berlin, Germany)
|December 22, 2025
Summary
Numerical methods reveal how Fabry-Perot cavity wall corrugations impact spectral features. This study is crucial for developing advanced photonic devices and speckle-free illumination technologies.
Area of Science:
- Photonics
- Laser Physics
- Computational Optics
Background:
- Fabry-Perot laser diodes present significant numerical challenges due to disproportionate dimensions.
- Fabricating random laser diodes involves roughened cavity mirrors, introducing nanoscale roughness alongside microscale cavity lengths.
- Existing statistical approaches for fractal structures are unsuitable for these extreme dimension ranges.
Purpose of the Study:
- To numerically compute cavity modes in Fabry-Perot structures with roughened walls.
- To investigate the effect of random corrugations on the statistical properties of spectral features.
- To lay the groundwork for developing essential photonic computation devices and speckle-free illumination.
Main Methods:
- Deployment of numerical methods to compute cavity modes.
- Analysis of spectral features influenced by random corrugations on cavity walls.
Main Results:
- Demonstration of how random corrugations on Fabry-Perot cavity walls influence statistical properties of spectral features.
- Quantification of the impact of nanoscale roughness on microscale cavity optical properties.
Conclusions:
- Numerical computation of cavity modes is essential for understanding roughened Fabry-Perot systems.
- Understanding these effects is a critical step towards fabricating advanced photonic devices.
- This research supports the development of efficient speckle-free illumination and photonic computation.
Keywords:
analytical modelsdisorder photonicsmixed length scalesnumerical modellingoptical cavitiesrandom lasersMore Related Videos
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