通过强场泵浦不均匀对齐分子集体实现宏观自旋-轨道相互作用
Macroscopic Spin-Orbit Interaction through Strong-Field Pumping of Inhomogeneously Aligned Molecular Ensemble
AI总结:
通过强场泵浦不均匀对齐分子集体,实现宏观自旋-轨道相互作用,利用高阶谐波辐射携带轨道角动量。
摘要:
我们研究了螺旋双色泵浦场与各向异性和不均匀分子系统之间的强场相互作用,该系统以平面分布的径向对齐分子集体形式存在。这种设置导致了宏观自旋-轨道相互作用,其中高阶谐波辐射在发射时携带轨道角动量(OAM),其符号由泵浦场的手性直接决定。我们通过H₂⁺和N₂分子集体的时依赖密度泛函理论(TDDFT)模拟展示了这一现象。
英文摘要:
We study the strong-field interaction of a helical bi-chromatic pump with an anisotropic and inhomogeneous molecular system in the form of planar distribution of radially aligned molecular ensemble. This setting gives rise to macroscopic spin-orbit interaction where High Harmonic radiation is emitted while imbued with Orbital Angular Momentum (OAM) whose sign is directly dictated by the helicity of the pump field. We demonstrate this phenomenon in ensembles of $H_2^+$ and $N_2$ molecules with Time-Dependent Density Functional Theory (TDDFT) simulations.
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