论文标题
电磁诱导的光栅中多波混合诱导的非线性效应
Multi-wave-mixing-induced nonlinear effects in an electromagnetically induced grating
论文作者
论文摘要
我们提出了一个多场耦合原子模型，该模型在远场状态下具有可控的$对称$和$不对称$进化的衍射峰。通过在封闭的四级原子系统中的空间调节连贯性的多波粘合剂修饰的结果，通过线性和非线性调制衍射峰强度的线性和非线性调制。结果的新颖性在于由于在精确的原子场共振的条件下，预测衍射峰的超对称比对，这是当前模型所独有的。本方案的功效是将其应用于产生由四波混合诱导的空间调节相干效应的控制产生的非线性光。这项工作还发现其对高精度原子光刻领域的适用性的重要性。
We propose a multi-field-coupled atomic model that exhibits controllable $symmetric$ and $asymmetric$ evolution of significantly enhanced diffraction peaks in an opto-atomic grating at far-field regime. Such results are obtained by the linear and nonlinear modulation of the intensities of the diffraction peaks as a result of multi-wave-mixing-induced modification of spatially modulated coherence in a closed four-level atomic system. Novelty of the results lies in predicting super symmetric alignment of the diffraction peaks due to the dominance of the amplitude part of the grating-transfer-function at the condition of exact atom-field resonance, which is unique to the present model. Efficacy of the present scheme is to apply it in producing nonlinear light generated by four-wave-mixing-induced control of spatially modulated coherence effect. The work also finds its importance for its applicability in the field of high-precision atomic lithography.
