AI 中文总结
针对有机单光子源受声子边带影响的问题，提出三种经贝叶斯优化等方法设计的单片微腔，可增强零声子线发射，为实现高质量有机单光子光源提供可行方案。
AI 中文摘要
单个有机分子是公认的高质量单光子产生平台：它们可发射寿命受限的光子，具有高纯度和不可区分性。然而，它们的发射伴随着明显的红移声子边带和高阶振动峰，这降低了发射到所需窄带零声子线的光子比例。抑制这种 unwanted 发射的标准方法是将发射器集成到提供珀塞尔（Purcell）增强的单片光子纳米结构中。但使用洁净室技术整合有机材料已被证明具有挑战性，迄今为止实际上已阻止了它们完全集成到单片微腔中。因此，尽管有机单光子源在量子信息处理应用中具有巨大潜力，但高效、窄带的有机单光子源仍难以实现。在此，我们提出三种定制的单片微腔设计，以提供有机量子发射器所需的足够珀塞尔增强。这些腔诱导的珀塞尔效应优先增强发射到0-0零声子线的光子，提高光谱纯度、光子提取效率，并缩短激发态寿命，这反过来降低了产生不可区分光子的要求。这些腔采用贝叶斯优化和自适应Antoulas-Anderson（AAA）算法进行优化，分别提供全局优化和从散射模拟中高效重建光谱的功能。这些结构与标准洁净室加工和单分子制备技术兼容。因此，它们为实现高质量、实用的单色有机单光子光源提供了明确途径。
英文摘要
Single organic molecules are a well-established platform for high-quality single-photon generation: they can emit lifetime-limited photons with high purity and indistinguishability. However, their emission is accompanied by a pronounced red-shifted phonon sideband and higher-order vibrational peaks, which reduce the fraction of photons emitted into the desired narrowband zero-phonon line. The standard approach to suppressing this unwanted emission is to integrate the emitter into a monolithic photonic nanostructure that provides Purcell enhancement. However, incorporating organic materials using clean-room techniques has proven challenging, and has in fact so far prevented their integration into monolithic microcavities altogether. As a result, efficient, narrowband organic single-photon sources for applications in quantum information processing have remained elusive despite their considerable promise. Here, we propose three monolithic microcavity designs tailored to provide sufficient Purcell enhancement for organic quantum emitters. The Purcell effect induced by these cavities preferentially enhances emission into the 0-0 zero-phonon line, increasing spectral purity, photon extraction, and shortening the excited-state lifetime, which in turn relaxes the requirements for generating indistinguishable photons. The cavities have been optimized using Bayesian optimization and the adaptive Antoulas-Anderson (AAA) algorithm for rational approximation, which offer global optimization and the efficient reconstruction of spectra from scattering simulations, respectively. These structures are compatible with both standard clean-room processing and single-molecule preparation techniques. Therefore, they offer a clear route to realize high-quality, practically monochromatic organic single-photon light sources.
