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Lissajous-like wavepacket motion on the two-dimensional adiabatic potential surface in localized excitons

机译:局部激子在二维绝热势面上的李沙育状波包运动

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We report the wavepacket motion on the adiabatic potential surface of a self-trapped exciton (STE) in a halogen-bridged mixed-valence Pt complex at 4 K measured by using femtosecond time-resolved luminescence spectroscopy. The observed waveform is complex and differs from the behavior at room temperature. A low-frequency mode, 0.7 THz, was found in addition to the main mode of STE, 3.4 THz. The time evolution of the luminescence intensity was reproduced in terms of a model assuming a Lissajous-figure-like motion of the wavepacket on a two-dimensional adiabatic potential surface. (c) 2006 Elsevier Ltd. All rights reserved.
机译:我们报告了使用飞秒时间分辨发光光谱法在4 K的卤素桥式混合价Pt络合物中自陷激子(STE)的绝热势能表面上的波包运动。观察到的波形很复杂,并且与室温下的行为不同。除了STE的主要模式3.4 THz,还发现了一种低频模式0.7 THz。发光强度的时间演变是根据模型进行的,该模型假设波包在二维绝热势面上的像李沙育一样的运动。 (c)2006 Elsevier Ltd.保留所有权利。

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