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Photoluminescence from a homogeneous volume source within an optical multilayer: analytical formulas
Enrico Nichelatti1, Rosa Maria Montereali
1ENEA CR Casaccia, Rome, Italy. enrico.nichelatti@enea.it
Summary
This study presents a new theoretical model for light emission from optically active layers in multilayer structures. The model analytically calculates radiated power, aiding in the design of advanced optical devices.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Understanding light emission from optically active materials within multilayer structures is crucial for developing advanced optical devices.
- Existing models may not fully account for the influence of external optical pumping on emission characteristics.
Purpose of the Study:
- To develop a comprehensive theoretical model for light emission from homogeneous volume sources in multilayer systems.
- To incorporate the effect of linearly polarized optical pumping into the theoretical framework.
- To apply the model to analyze photoluminescence in specific microstructures.
Main Methods:
- Development of analytical formulas for radiated power from a volume source within a multilayer.
- Integration of the effect of a plane-wave polarized optical pump.
- Application of the model to a λ/2 cavity and thin-film microstructures.
Main Results:
- The study demonstrates fully analytical formulas for radiated power.
- The model successfully investigates the influence of a plane-wave pump.
- Photoluminescence polar diagrams for lithium-fluoride-based microstructures were calculated.
Conclusions:
- The presented theoretical model provides an accurate and analytical approach to understanding light emission in multilayer systems.
- The findings are applicable to the design and optimization of optical devices utilizing optically active layers.
- The model facilitates the characterization of photoluminescence in thin-film microstructures.
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