光电倍增管中的超快三光子计数。

Ultrafast three-photon counting in a photomultiplier tube.

机构信息

Department of Electrical Engineering, Technion, Haifa, Israel.

出版信息

Opt Lett. 2011 Mar 1;36(5):725-7. doi: 10.1364/OL.36.000725.

DOI:10.1364/OL.36.000725

Abstract

We demonstrate experimentally ultrafast three-photon counting by three-photon absorption in a GaAsP photomultiplier tube at the wavelength range of 1800-1900 nm, and analyze its sensitivity and time response. Pulse energy of ∼500 fJ is shown to be detectable for ultrafast 170 fs pulses. The presented three-photon counter may serve as a unique tool for ultrafast quantum state characterization as well as for ultrasensitive third-order temporal measurements.

摘要

我们通过在 GaAsP 光电倍增管中进行三光子吸收，在 1800-1900nm 的波长范围内进行实验演示了超快三光子计数，并分析了其灵敏度和时间响应。结果表明，对于超快 170fs 脉冲，可检测到约 500fJ 的脉冲能量。所提出的三光子计数器可用作超快量子态表征以及超灵敏三阶时间测量的独特工具。