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The Intermode Polariton Parametric Scattering Laser in a Strong Coupled Microcavity Via Two-Photon Absorption
Nano Letters ( IF 9.6 ) Pub Date : 2024-07-10 , DOI: 10.1021/acs.nanolett.4c01947 Runchen Wang 1 , Yaqi Wang 1 , Junxing Dong 1 , Lisheng Wang 1 , Jingzhuo Wang 1 , Yifan Zhang 1 , Huanjun Chen 2 , Yunwei Zhang 1 , Yiyun Zhang 3, 4 , Yue Wang 5 , Hai Zhu 1
Nano Letters ( IF 9.6 ) Pub Date : 2024-07-10 , DOI: 10.1021/acs.nanolett.4c01947 Runchen Wang 1 , Yaqi Wang 1 , Junxing Dong 1 , Lisheng Wang 1 , Jingzhuo Wang 1 , Yifan Zhang 1 , Huanjun Chen 2 , Yunwei Zhang 1 , Yiyun Zhang 3, 4 , Yue Wang 5 , Hai Zhu 1
Affiliation
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Exciton-polaritons, hybrid quasiparticles from the strong coupling of excitons and cavity photons in semiconductor microcavities, offer a platform for exploring quantum coherence and nonlinear optical properties. The unique polariton parametric scattering (PPS) laser is of interest for its potential in quantum technologies and nonlinear devices. However, direct resonant excitation of polaritons in strong-coupling microcavities is challenging. This study proposes an innovative two-photon absorption (TPA) pump mechanism to address this. We observe TPA-driven PPS lasing in a strongly coupled microcavity at room temperature. High K-value exciton injections promote coherent stimulated emission of polariton scattering through intermode channels. Angle-resolved spectra confirm a TPA process, showing evolution from pump-state to signal-state. Hanbury Brown-Twiss measurement of second-order correlation g2(τ) of signal state indicates a phase transition from a classical thermal state to a quantum coherent state. Theoretical modeling provides insights into the physical mechanisms of PPS. Our work advances nonlinear phenomena exploration in strongly coupled light–matter systems, contributing to quantum polaritonics and nonlinear optics.
中文翻译：
强耦合微腔中的双光子吸收模间偏振子参量散射激光器
激子极化子是半导体微腔中激子和腔光子强耦合产生的混合准粒子，为探索量子相干性和非线性光学特性提供了平台。独特的偏振子参量散射（PPS）激光器因其在量子技术和非线性器件中的潜力而备受关注。然而，强耦合微腔中极化激元的直接共振激发具有挑战性。本研究提出了一种创新的双光子吸收（TPA）泵机制来解决这个问题。我们在室温下观察强耦合微腔中 TPA 驱动的 PPS 激光。高 K 值激子注入促进通过模间通道的极化子散射的相干受激发射。角度分辨光谱证实了 TPA 过程，显示了从泵浦状态到信号状态的演变。信号状态二阶相关性 g 2 (τ) 的 Hanbury Brown-Twiss 测量表明从经典热态到量子相干态的相变。理论模型提供了对 PPS 物理机制的见解。我们的工作推进了强耦合光物质系统中的非线性现象探索，为量子极化子学和非线性光学做出了贡献。
更新日期：2024-07-10
中文翻译：
强耦合微腔中的双光子吸收模间偏振子参量散射激光器
激子极化子是半导体微腔中激子和腔光子强耦合产生的混合准粒子，为探索量子相干性和非线性光学特性提供了平台。独特的偏振子参量散射（PPS）激光器因其在量子技术和非线性器件中的潜力而备受关注。然而，强耦合微腔中极化激元的直接共振激发具有挑战性。本研究提出了一种创新的双光子吸收（TPA）泵机制来解决这个问题。我们在室温下观察强耦合微腔中 TPA 驱动的 PPS 激光。高 K 值激子注入促进通过模间通道的极化子散射的相干受激发射。角度分辨光谱证实了 TPA 过程，显示了从泵浦状态到信号状态的演变。信号状态二阶相关性 g 2 (τ) 的 Hanbury Brown-Twiss 测量表明从经典热态到量子相干态的相变。理论模型提供了对 PPS 物理机制的见解。我们的工作推进了强耦合光物质系统中的非线性现象探索，为量子极化子学和非线性光学做出了贡献。
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