Abstract In this paper we report on observation of exciton molecules in the low-temperature photoluminescence spectra of diamond. The charge carriers are excited using multiphoton absorption of few-cycle near-infrared laser pulses. We observe that peaks corresponding to exciton molecules are well resolved and the formation of electron hole droplets is suppressed due to the initial carrier dynamics and low excited carrier densities.

中文翻译：

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金刚石中的多光子激发激子分子

摘要 本文报道了金刚石低温光致发光光谱中激子分子的观察。电荷载流子使用少周期近红外激光脉冲的多光子吸收来激发。我们观察到与激子分子对应的峰得到了很好的分辨，并且由于初始载流子动力学和低激发载流子密度，电子空穴液滴的形成受到抑制。