How stable are holograms stored in photorefractive polymers? This research investigates the decay of holograms stored in photorefractive polymer composites, with and without extrinsic deep traps, focusing on poly(N-vinyl-carbazole)-based materials. The goal is to identify key parameters influencing dark decay dynamics and has connections to both **physics** and **chemistry**. The study identifies the photorefractive phase shift as a critical factor governing hologram stability, and recognizes it has significant implications for photorefractive imaging applications, particularly holographic data storage. The research highlights a trade-off between hologram distortion due to two-beam coupling and achieving high stability during dark idle periods. Ultimately, this paper provides insights into optimizing photorefractive polymer composites for long-term hologram storage. By understanding the factors contributing to dark decay, researchers can develop materials and strategies that improve hologram stability while minimizing distortion, advancing holographic data storage and imaging technologies, as well as providing information relevant to the field of **materials**.
Published in Applied Physics Letters, this research aligns with the journal's focus on experimental and theoretical developments in physics and materials science. By investigating the decay of holograms in photorefractive polymers, it contributes to understanding the fundamental properties of these materials and their potential for optical applications. The references demonstrate engagement with existing research in polymer science and holography.