Polarization-Dependent Theory of Two-Wave Mixing in Nonlinear Media, and Application to Dynamical Polarization Control
Polarization-Dependent Theory of Two-Wave Mixing in Nonlinear Media, and Application to Dynamical Polarization Control
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DOI：
10.1103/physrevx.10.021039
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发表时间：
2020-05
影响因子：
12.5
通讯作者：
Pierre Michel;E. Kur;M. Lazarow;T. Chapman;L. Divol;J. Wurtele
中科院分区：
文献类型：
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作者：
Pierre Michel;E. Kur;M. Lazarow;T. Chapman;L. Divol;J. Wurtele
提出了一种利用非线性光学介质中辅助光束与光波相互作用来控制光波偏振的方案。我们首先提出了偏振相关的波混频的线性理论，其中的“探测”光束，其偏振被操纵，是不太强烈的辅助光束。然后，我们证明了一个简单的几何排列，其中辅助和探针以90°交叉，辅助是线性偏振的（与入射平面正交），使我们能够控制探针的偏振，即使它的强度超过辅助的强度。当非线性光学介质是等离子体时，这些方案特别令人感兴趣，因为它可以在超快时间尺度上实现动态偏振操纵，并且远远超过基于晶体的光子器件的光学损伤阈值。
A scheme for controlling the polarization of a light wave via its interaction with an auxiliary beam in a nonlinear optical medium is proposed. We first present the linear theory of polarization-dependent wave mixing, where the “probe” beam, whose polarization is to be manipulated, is less intense than the auxiliary beam. Then we show that a simple geometrical arrangement, where the auxiliary and probe are crossing at 90° and the auxiliary is linearlypolarized (orthogonal to the plane of incidence), enables us to control the probe’s polarization even when its intensity exceeds the auxiliary’s intensity. These schemes are of particular interest when the nonlinear optical medium is a plasma, as it might enable dynamic polarization manipulations at ultrafast timescales and far beyond the optics damage threshold of crystal-based photonics devices.