This research demonstrates improved optical characteristics in devices, suggesting the utility of strong coupling in overcoming angular dispersion challenges.
Thin film interference is crucial for optoelectronic devices allowing to manipulate their spectral characteristics such as emission, transmission, and absorption profiles via constructive and destructive interference. However, these devices face challenges with blue shifts at non-normal angles. This study addresses this by using ultra-strong coupling between cavity photons and material excitons, leading to a flat dispersion relation. This approach, effective with organic materials, enables angle-independent, narrowband optical responses. Combining modern optimization techniques with transfer matrix calculations, high-quality filters are designed. These filters will benefit micro-optics, biophotonics, and other fields by providing spectrally stable devices, demonstrating the practical utility of strong coupling in overcoming large field of view challenges.
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Roux et al. (2025) studied this question.
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