adf:tpatheory
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| adf:tpatheory [2020/02/19 12:54] – [双光子吸收] liu.jun | adf:tpatheory [2020/02/19 13:04] (当前版本) – [双光子吸收] liu.jun | ||
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| Assuming two degenerate photons that are linearly polarized, the TPA cross section (σ$_{TPA}$) can be calculated using the imaginary part of the third-order response property as | Assuming two degenerate photons that are linearly polarized, the TPA cross section (σ$_{TPA}$) can be calculated using the imaginary part of the third-order response property as | ||
| - | {{ :adf:12300b2e-e2fe-40ec-98fb-33cda0f9407e.png?500 }} | + | {{ :adf:5ab2e60d-6c93-49b0-8b5e-8f6ee1ac5411.png?350 }} |
| - | * 精细结构常数α$_f$=e$^2$/ | + | * 精细结构常数α=e$^2$/ |
| * σ$_{TPA}$单位为Göppert-Mayer (1 GM = 10$^{−50}$ cm$^4$ s photon$^{−1}$) | * σ$_{TPA}$单位为Göppert-Mayer (1 GM = 10$^{−50}$ cm$^4$ s photon$^{−1}$) | ||
| * 整数N取决于实验设置 | * 整数N取决于实验设置 | ||
| - | * γ二阶超极化率，在ADF软件中，超极化率选项选择γ TPA，即可计算γ(-ω, | + | * γ约化形式的二阶超极化率γ(-ω, |
| * ω频率 | * ω频率 | ||
| - | * Im表示取虚部 | + | * Im[]表示取虚部 |
adf/tpatheory.1582088045.txt.gz · 最后更改: 2020/02/19 12:54 由 liu.jun