Figure 4 | Scientific Reports

Figure 4

From: Quantum optical tomography based on time-resolved and mode-selective single-photon detection by femtosecond up-conversion

Figure 4

Two-time transfer function, numerical Schmidt mode profiles and conversion efficiencies. (a) The contour plot of the two-time transfer function \({G}_{rs}\left(t, {t}^{\prime}\right)\) under the condition that \({\beta }_{s}-{\beta }_{p}=2.5\) fs/mm, \({\beta }_{c}-{\beta }_{p}=-0.55\) ps/mm, and \(\gamma =0.0825\) mm-1. (b) Temporal profiles of five leading Schmidt modes of the signal. (c) Temporal profiles of five leading Schmidt modes of the idler. (d) Conversion efficiencies \({\left|{\rho }_{n}\right|}^{2}\) of five leading Schmidt modes.

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