Development of photon-number-resolved Fourier transform spectroscopy

2015 Fiscal Year Final Research Report

• Project/Area Number: 26610082
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Condensed matter physics I
• Research Institution: The University of Electro-Communications
• Principal Investigator: SHIMIZU Ryosuke 電気通信大学, 情報理工学(系)研究科, 准教授 (50500401)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 量子光学 / 分光計測 / 非線形光学 / 光物性 / 二光子量子干渉

Outline of Final Research Achievements

We propose a novel technique of Fourier transform spectroscopy, combined with two-photon quantum interference, with photon-number-resolving detection. Toward realization of this technique, we have carried out spectroscopic and interferometric quantum measurements in order to characterize spectral properties of photon pairs generated from a nonlinear crystal. The resultant spectral widths from these measurements showed consistent values. In addition, we have developed a technique to efficiently collect photon pairs from a resonant state of biexcitons in a CuCl crystal.

Free Research Field

量子光学