Zhang Yingwen, England Duncan, Nomerotski Andrei, Sussman Benjamin
Opt Express. 2021 Aug 30;29(18):28217-28227. doi: 10.1364/OE.432191.
In this work we demonstrate spectral-temporal correlation measurements of the Hong-Ou-Mandel (HOM) interference effect with the use of a spectrometer based on a photon-counting camera. This setup allows us to take, within seconds, spectral temporal correlation measurements on entangled photon sources with sub-nanometer spectral resolution and nanosecond timing resolution. Through post processing, we can observe the HOM behaviour for any number of spectral filters of any shape and width at any wavelength over the observable spectral range. Our setup also offers great versatility in that it is capable of operating at a wide spectral range from the visible to the near infrared and does not require a pulsed pump laser for timing purposes. This work offers the ability to gain large amounts of spectral and temporal information from a HOM interferometer quickly and efficiently and will be a very useful tool for many quantum technology applications and fundamental quantum optics research.
在这项工作中，我们展示了利用基于光子计数相机的光谱仪对Hong-Ou-Mandel（HOM）干涉效应进行光谱-时间关联测量。这种设置使我们能够在几秒钟内，以亚纳米光谱分辨率和纳秒时间分辨率对纠缠光子源进行光谱-时间关联测量。通过后处理，我们可以在可观测光谱范围内的任何波长下，观察任意数量、任意形状和宽度的光谱滤波器的HOM行为。我们的设置还具有很大的通用性，因为它能够在从可见光到近红外的宽光谱范围内运行，并且不需要用于定时的脉冲泵浦激光器。这项工作提供了快速有效地从HOM干涉仪获取大量光谱和时间信息的能力，对于许多量子技术应用和基础量子光学研究将是一个非常有用的工具。
