论文标题
在高参数增益方面，具有非线性干涉仪的光学相干断层扫描
Optical Coherence Tomography with a nonlinear interferometer in the high parametric gain regime
论文作者
论文摘要
我们基于具有高增益参数下转换的SU（1,1）非线性干涉仪的光学相干断层扫描。对于成像和传感应用，该方案有望胜过以低参数增益工作的先前实验，因为较高的光子通量为获得高质量图像提供了较低的整合时间。以这种方式，人们可以避免使用具有很高灵敏度的单光子检测器或CCD摄像机，并且可以使用标准光谱仪。其他优点是：检测前对小损失和放大的敏感性更高，因此检测到的光功率大大超过了探测。
We demonstrate optical coherence tomography based on an SU(1,1) nonlinear interferometer with high-gain parametric down-conversion. For imaging and sensing applications, this scheme promises to outperform previous experiments working at low parametric gain, since higher photon fluxes provide lower integration times for obtaining high-quality images. In this way one can avoid using single-photon detectors or CCD cameras with very high sensitivities, and standard spectrometers can be used instead. Other advantages are: higher sensitivity to small loss and amplification before detection, so that the detected light power considerably exceeds the probing one.
