Ultrasensitive N-photon interferometric autocorrelator
Optics
2013-11-26 v1 Instrumentation and Detectors
Quantum Physics
Abstract
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.
Keywords
Cite
@article{arxiv.1209.2747,
title = {Ultrasensitive N-photon interferometric autocorrelator},
author = {Zili Zhou and Giulia Frucci and Francesco Mattioli and Alessandro Gaggero and Roberto Leoni and Saeedeh Jahanmirinejad and Thang Ba Hoang and Andrea Fiore},
journal= {arXiv preprint arXiv:1209.2747},
year = {2013}
}