Applied Physics Letters
Remote spectral measurement using entangled photons
Giuliano Scarcelli, Alejandra Valencia, Samuel Gompers, Yanhua H. Shih
Abstract
By utilizing the frequency correlation of two-photon states produced via spontaneous parametric down conversion, the working principle of a remote spectrometer is demonstrated. With the help of a local scanning monochromator, the spectral transmission function of an optical element (or atmosphere) at remote locations can be characterized for wide range of wavelengths with expected high resolution.