Ellipsometric measurements by use of photon pairs generated by spontaneous parametric downconversion.
Ellipsometric measurements by use of photon pairs generated by spontaneous parametric downconversion.
复制标题
使用自发参量下转换产生的光子对进行椭圆测量。
DOI：
10.1364/ol.26.001717
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发表时间：
2001
期刊：
影响因子：
3.6
通讯作者：
M. Teich
中科院分区：
文献类型：
--
作者：
A. Abouraddy;K. Toussaint;Jr.;A. Sergienko;B. Saleh;M. Teich
我们提出了一种新的干涉技术进行椭偏测量。这种技术依赖于使用的非经典光源，即，偏振纠缠的孪生光子产生的自发参数下转换从非线性晶体，结合符合检测方案。用该方案获得的椭圆偏振测量是绝对的;即，它们不需要源和检测器校准。
We present a novel interferometric technique for performing ellipsometric measurements. This technique relies on the use of a nonclassical optical source, namely, polarization-entangled twin photons generated by spontaneous parametric downconversion from a nonlinear crystal, in conjunction with a coincidence-detection scheme. Ellipsometric measurements acquired with this scheme are absolute; i.e., they do not require source and detector calibration.