Improving the resolution temporal in quantum and classical imaging  

Improving the resolution in quantum and classical temporal imaging

作　　者：Junheng Shi Giuseppe Patera Youzhen Gui Mikhail I.Kolobov Dmitri B.Horoshko and Shensheng Han Junheng Shi;Giuseppe Patera;Youzhen Gui;Mikhail I.Kolobov;Dmitri B.Horoshko;Shensheng Han(Key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences;University of Chinese Academy of Sciences;Univ. Lille, CNRS, UMR 8523-PhLAM-Physique des Lasers Atomes et Molécules;B I. Stepanov Institute of Physics,NASB)

机构地区：[1]Key Laboratory for Quantum Optics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China [2]University of Chinese Academy of Sciences,Beijing 100049,Chin [3]Univ.Lille,CNRS,UMR 8523-PhLAM-Physique des Lasers Atomes et Moleules,F-59000 Lille,France [4]B I.Stepanov Institute of Physics,NASB,Minsk 220072,Belarus

出　　处：《Chinese Optics Letters》2018年第9期70-76,共7页中国光学快报（英文版）

基　　金：support by the Hi-Tech Research and Development Program of China(Nos.2013AA122902 and 2013AA122901);the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB21030200)

摘　　要：The point-spread function of an optical system determines its optical resolution for both spatial and temporal imaging. For spatial imaging, it is given by a Fourier transform of the pupil function of the system. For temporal imaging based on nonlinear optical processes, such as sum-frequency generation or four-wave mixing, the pointspread function is related to the waveform of the pump wave by a nonlinear transformation. We compare the point-spread functions of three temporal imaging schemes： sum-frequency generation, co-propagating four-wave mixing, and counter-propagating four-wave mixing, and demonstrate that the last scheme provides the best temporal resolution. Our results are valid for both quantum and classical temporal imaging.The point-spread function of an optical system determines its optical resolution for both spatial and temporal imaging. For spatial imaging, it is given by a Fourier transform of the pupil function of the system. For temporal imaging based on nonlinear optical processes, such as sum-frequency generation or four-wave mixing, the pointspread function is related to the waveform of the pump wave by a nonlinear transformation. We compare the point-spread functions of three temporal imaging schemes： sum-frequency generation, co-propagating four-wave mixing, and counter-propagating four-wave mixing, and demonstrate that the last scheme provides the best temporal resolution. Our results are valid for both quantum and classical temporal imaging.

关 键 词：Improving the resolution in quantum and classical temporal imaging 

分 类 号：TH74[机械工程—光学工程]