Fig. 1. Diagram of single- and two-photon absorption

Fig. 2. Charge tracks generated by SPA and TPA

Fig. 3. LM741 CH operational amplifier

Fig. 4. Influence of 1064 nm pulse laser energy variation on response voltage of LM741 CH operational amplifier

Fig. 5. Influence of 1200 nm pulse laser energy variation on response voltage of LM741 CH operational amplifier

Fig. 6. Fitting diagram of linear relationship between single-photon (two-photon) voltage response and energy (energy square)

Fig. 7. Fitting diagram of linear relation between charge amount of single-photon (two-photon) and energy (energy square)