Optical coherence tomography (OCT) is an appealing technique for bio-imaging, medicine,
and material analysis. For many applications, OCT in mid-and far-infrared (IR) leads to …

We use frequency-entangled photons, generated via spontaneous parametric down
conversion, to measure the broadband spectral response of an array of gold nanoparticles …

Photon pairs from spontaneous parametric down-conversion (SPDC) are important for a
wide range of quantum optics experiments with spectral properties such as their bandwidths …

We show that broadband biphoton wave packets produced via sponateous parametric down-
conversion in crystals with linearly aperiodic poling can be easily compressed in time using …

We demonstrate the experimental technique for generating a spatial single-mode
broadband biphoton field. The method is based on a dispersive optical element which …

The main methods for controlling the biphoton field, as well as the problems for which the
width and the shape of the spectrum of the biphoton field are of decisive importance, are …

Sources of broadband quantum correlated photons present a valuable resource for quantum
metrology, sensing, and communication. Here, we report the generation of spectrally …

Broadband correlated photon pairs (biphotons) are valuable in quantum metrology, but
current generation methods either involve complex nonlinear structures or lack sufficient …

A method for controlling the spectrum of spontaneous parametric down-conversion has
been implemented. This method is based on the application of the gradient of an …

摘要准相位匹配有利于实现高效的自发参量下转换, 它由非线性晶体的极化周期和依赖于温度的
折射率决定. 为了确定特定波长处所需的晶体温度, 需要测量相位匹配波长随晶体温度的变化 …