| Autor: |
Zhou, Zili, Frucci, Giulia, Mattioli, Francesco, Gaggero, Alessandro, Leoni, Roberto, Jahanmirinejad, Saeedeh, Hoang, Thang Ba, Fiore, Andrea |
| Rok vydání: |
2012 |
| Předmět: |
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| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevLett.110.133605 |
| Popis: |
We demonstrate a novel method to measure the Nth-order (N=1, 2, 3, 4) interferometric autocorrelation with high sensitivity and temporal resolution. It is based on the combination of linear absorption and nonlinear detection in a superconducting nanodetector, providing much higher efficiency than methods based on all-optical nonlinearities. Its temporal resolution is only limited by the quasi-particle energy relaxation time, which is directly measured to be in the 20 ps range for the NbN films used in this work. We present a general model of interferometric autocorrelation with these nonlinear detectors and discuss the comparison with other approaches and possible improvements. |
| Databáze: |
arXiv |
| Externí odkaz: |
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