Manipulation and visualization of two-dimensional phase distribution of vibrational wavefunctions in solid para-hydrogen crystal
Manipulation and visualization of two-dimensional phase distribution of vibrational wavefunctions in solid para-hydrogen crystal
复制标题
固体仲氢晶体中振动波函数二维相位分布的操纵和可视化
DOI：
10.1103/physrevb.92.094511
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发表时间：
2015
影响因子：
3.7
通讯作者：
and K. Ohmori
中科院分区：
文献类型：
--
作者：
H. Katsuki;K. Ohmori;T. Horie;H. Yanagi;and K. Ohmori
众所周知，固体仲氢作为分子固体具有极长的振动相干寿命，为在凝聚相中进行相干控制实验提供了理想的测试平台。在这里，我们演示了固体仲氢中振动波函数相对相位的空间操纵和可视化。振动激励的空间分布是由飞秒脉冲拉曼激励产生的。结果表明，可以通过空间光调制器对激发激光脉冲进行波前调制来操纵压印初始相位。干涉测量用于将振动波函数的空间相位分布转换为振幅分布。我们已经证实，散射反斯托克斯脉冲的空间轮廓揭示了波函数的空间相位分布。本实验中演示的读写方案适用于可通过类型转换访问的各种拉曼存储系统。
Solid parahydrogen, which is known to have an exceptionally long vibrational coherence lifetime as a molecular solid, offers an ideal testbed to perform coherent control experiments in the condensed phase. Here we demonstrate the spatial manipulation and visualization of the relative phase of vibrational wave functions in solid parahydrogen. Spatial distribution of vibrational excitation is generated by femtosecond impulsive Raman excitation. It is shown that the imprinted initial phase can be manipulated by wave-front modulation of the excitation laser pulses with a spatial light modulator. An interferometric measurement is used to convert the spatial phase distribution of the vibrational wave functions to the amplitude distribution. We have confirmed that the spatial profile of the scattered anti-Stokes pulse reveals the spatial phase distribution of the wave functions. The read-and-write scheme demonstrated in this experiment is applicable to a broad range of Raman memory systems accessible by-type transitions.