论文标题
在室温下荧光蛋白激元 - 果仁糖的热化
Thermalization of fluorescent protein exciton-polaritons at room temperature
论文作者
论文摘要
荧光蛋白（FPS）最近已成为实现超高阈值室温激子 - 果棒凝结和激光的严重竞争者。我们的贡献调查了在环境条件下光泵泵后FP微腔激元激元的热化。我们使用一种称为Mscarlet的新FP分子认识到Polariton冷却，并强烈耦合到Fabry Perot腔中的光学模式。有趣的是，在〜9 NJ/脉冲（15.6 MJ/cm2）的阈值激发能（VULINES）下，我们观察到有效温度，Teff 〜350 +/- 35 K接近晶格温度，表明在平衡时表明强烈热热化的Exciton-Polaritons。这种有效的热化是由下极化分支和空腔Q因子的能量促进的辐射泵的相互作用引起的。直接证据表明，在室温下，在室温下，有机腔极化器设备的急剧切换到了亚稳态状态，这是通过偏离阈值高于k = 0的麦克斯韦 - 波尔兹曼统计的偏差。在有机系统中，平衡中的热偏振气体对设计室温偏振电路，开关和晶格具有实质性希望，以进行模拟模拟。
Fluorescent proteins (FPs) have recently emerged as a serious contender for realizing ultralow threshold room temperature exciton-polariton condensation and lasing. Our contribution investigates the thermalization of FP microcavity exciton-polaritons upon optical pumping under ambient conditions. We realize polariton cooling using a new FP molecule, called mScarlet, coupled strongly to the optical modes in a Fabry Perot cavity. Interestingly, at the threshold excitation energy (fluence) of ~ 9 nJ/pulse (15.6 mJ/cm2), we observe an effective temperature, Teff ~ 350 +/- 35 K close to the lattice temperature indicative of strongly thermalized exciton-polaritons at equilibrium. This efficient thermalization results from the interplay of radiative pumping facilitated by the energetics of the lower polariton branch and the cavity Q factor. Direct evidence for dramatic switching from an equilibrium state into a metastable state is observed for the organic cavity polariton device at room temperature via deviation from the Maxwell-Boltzmann statistics at k = 0 above the threshold. Thermalized polariton gases in organic systems at equilibrium hold substantial promise for designing room temperature polaritonic circuits, switches, and lattices for analog simulation.
