adf:tpatheory
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| adf:tpatheory [2020/02/18 15:21] – 创建 liu.jun | adf:tpatheory [2020/02/19 13:04] (当前版本) – [双光子吸收] liu.jun | ||
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| ======双光子吸收====== | ======双光子吸收====== | ||
| - | Assuming two degenerate photons that are linearly polarized, the TPA cross section (σTPA) 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 }} |
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| + | * 精细结构常数α=e$^2$/ | ||
| + | * σ$_{TPA}$单位为Göppert-Mayer (1 GM = 10$^{−50}$ cm$^4$ s photon$^{−1}$) | ||
| + | * 整数N取决于实验设置 | ||
| + | * γ约化形式的二阶超极化率γ(-ω, | ||
| + | * ω频率 | ||
| + | * Im[]表示取虚部 | ||
| - | where αf is the fine structure constant, and the σTPA unit is given as Göppert-Mayer (1 GM = 10$^{−50}$ cm$^4$ s photon$^{−1}$). The integer value N is related to the experimental setup, and in this work, N = 4 is used for all simulated TPA spectra. | ||
| =====参考文献===== | =====参考文献===== | ||
adf/tpatheory.1582010484.txt.gz · 最后更改: 2020/02/18 15:21 由 liu.jun