We present a theoretical study of the nonlinear optical properties of shallow-donor impurities in semiconductors subjected to magnetic fields, hydrostatic pressures, and intense laser illumination within the Voigt configuration. The donor energy levels and their wave functions are obtained using a combination of nonperturbative and variational methods where intense laser field effects are exactly taken into account through a laser-dressed Coulomb potential (LdCP). The combined effects of radiation and magnetic fields, hydrostatic pressures, and temperatures on the linear, third-order nonlinear, and total optical absorption coefficients (OACs) for the 1 s → 2 p ± and 2 p z transitions are investigated using a compact density-matrix approach. We find that the transition energies and geometric factors can be increased or decreased by changing external fields via the LdCP or by changing hydrostatic pressures and temperatures. In this way, saturable absorption depends not only on the incident optical intensity but also on the laser field, which is more easily realized in the z-polarization direction. The peak positions and magnitudes of the linear, third-order nonlinear, and total OACs can be effectively adjusted with an appropriate choice of these external perturbations. Moreover, hydrostatic pressures and temperatures affect these OACs in an opposite way. This opens a promising route to design new and efficient impurity-based devices manipulated by external perturbations.

中文翻译：

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静水压力和温度对磁场中半导体中浅给体杂质非线性光学特性的影响

我们对在 Voigt 配置内受到磁场、静水压力和强激光照射的半导体中浅供体杂质的非线性光学特性进行了理论研究。使用非微扰和变分方法的组合获得施主能级及其波函数，其中通过激光修整库仑势 (LdCP) 准确考虑强激光场效应。辐射和磁场、静水压力和温度对 1 s → 2 p ± 和 2 pz 跃迁的线性、三阶非线性和总光吸收系数 (OAC) 的综合影响使用紧凑的密度-矩阵方法。我们发现，通过 LdCP 改变外部场或通过改变静水压力和温度，可以增加或减少跃迁能和几何因素。这样，饱和吸收不仅取决于入射光强度，还取决于激光场，这在z偏振方向上更容易实现。The peak positions and magnitudes of the linear, third-order nonlinear, and total OACs can be effectively adjusted with an appropriate choice of these external perturbations. 此外，静水压力和温度以相反的方式影响这些 OAC。这为设计受外部扰动操纵的新型高效基于杂质的设备开辟了一条有前途的途径。可饱和吸收不仅取决于入射光强度，还取决于激光场，这在 z 偏振方向更容易实现。The peak positions and magnitudes of the linear, third-order nonlinear, and total OACs can be effectively adjusted with an appropriate choice of these external perturbations. 此外，静水压力和温度以相反的方式影响这些 OAC。这为设计受外部扰动操纵的新型高效基于杂质的设备开辟了一条有前途的途径。可饱和吸收不仅取决于入射光强度，还取决于激光场，这在 z 偏振方向更容易实现。The peak positions and magnitudes of the linear, third-order nonlinear, and total OACs can be effectively adjusted with an appropriate choice of these external perturbations. 此外，静水压力和温度以相反的方式影响这些 OAC。这为设计由外部扰动操纵的新型高效基于杂质的设备开辟了一条有前途的途径。此外，静水压力和温度以相反的方式影响这些 OAC。这为设计受外部扰动操纵的新型高效基于杂质的设备开辟了一条有前途的途径。此外，静水压力和温度以相反的方式影响这些 OAC。这为设计受外部扰动操纵的新型高效基于杂质的设备开辟了一条有前途的途径。