检索结果-南通市图书馆

Second-order temporal interference of two independent light beams at an asymmetrical beam splitter

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics B 2017年第1期26卷 187-193页

作者： Jianbin Liu Jingjing Wang Zhuo Xu Electronic Materials Research Laboratory Key Laboratory of the Ministry of Education Xi'an Jiaotong University Xi'an 710049 China International Center for Dielectric Research Xi'an Jiaotong University Xi'an 710049 China

The second-order temporal interference of classical and nonclassical light at an asymmetrical beam splitter is discussed based on two-photon interference in Feynman＇s path integral theory. The visibility of the second-order interference pattern is determined by the properties of the superposed light beams, the ratio between the intensities of these two light beams, and the reflectivity of the asymmetrical beam splitter. Some requirements about the asymmetrical beam splitter have to be satisfied in order to ensure that the visibility of the second-order interference pattern of nonclassical light beams exceeds the classical limit. The visibility of the second-order interference pattern of photons emitted by two independent single-photon sources is independent of the ratio between the intensities. These conclusions are important for the researches and applications in quantum optics and quantum information when an asymmetrical beam splitter is employed.

关键词： two-photon interference Feynman's path integral theory asymmetrical beam splitter

Second-order interference of two independent and tunable single-mode continuous-wave lasers

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2016年第3期25卷 194-199页

作者：刘建彬卫栋陈辉周宇郑淮斌高宏李福利徐卓 Electronic Materials Research Laboratory Key Laboratory of the Ministry of EducationXi'an Jiaotong UniversityXi'an 710049China International Center for Dielectric Research Xi'an Jiaotong UniversityXi'an 710049China Department of Applied Physics School of ScienceXi'an Jiaotong UniversityXi'an 710049China

The second-order temporal interference of two independent single-mode continuous-wave lasers is discussed by em- ploying two-photon interference in Feynman＇s path integral theory. It is concluded that whether the second-order temporal interference pattern can or cannot be retrieved via two-photon coincidence counting rate is dependent on the resolution time of the detection system and the frequency difference between these two lasers. two identical and tunable single-mode continuous-wave diode lasers are employed to verify the predictions. These studies are helpful to understand the physics of two-photon interference with photons of different spectra.

关键词： second-order temporal beating two-photon interference Feynman's path integral theory

Non-Rayleigh photon statistics of superbunching pseudothermal light

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2022年第2期31卷 366-371页

作者： Chao-Qi Wei Jian-Bin Liu Xue-Xing Zhang Rui Zhuang Yu Zhou Hui Chen Yu-Chen He Huai-Bin Zheng Zhuo Xu Key Laboratory of Mulifunctional Materials and Structures.Ministry of Education&International Center for Dielectric Research School of Electronic Science and Engineering.Xi an Jiaotong UniversityXi'an 710049China The Key Laboratory of Weak Light Nonlinear photonics(Ministry of Education) Namkai UniversityTianjin 300457China MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Department of Applied PlhysicsXi'an Jiaotong UniversityXi'an 710049China

Superbunching pseudothermal light has important applications in studying the second-and higher-order interference of light in quantum *** the photon statistics of thermal or pseudothermal light is well understood,the photon statistics of superbunching pseudothermal light has not been studied *** this paper,we will employ single-photon detectors to measure the photon statistics of superbunching pseudothermal light and calculate the degree of second-order *** is found that the larger the value of the degree of second-order coherence of superbunching pseudothermal light is,the more the measured photon distribution deviates from the one of thermal or pseudothermal light in the tail *** results are helpful to understand the physics of two-photon superbunching with classical *** is suggested that superbunching pseudothermal light can be employed to generate non-Rayleigh temporal speckles.

关键词： superbunching pseudothermal light photon statistics two-photon interference

Liquid crystal devices for vector vortex beams manipulation and quantum information applications [Invited]

在线全文

学校读者我要写书评

暂无评论

Chinese Optics Letters 2021年第11期19卷 124-132页

作者： Zhi-Xiang Li Ya-Ping Ruan Peng Chen Jie Tang Wei Hu Ke-Yu Xia Yan-Qing Lu National Laboratory of Solid State Microstructures College of Engineering and Applied Sciencesand Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093China School of Science Nantong UniversityNantong 226019China

Vector vortex beams(VVBs) have attracted significant attention in both classical and quantum optics. Liquid crystal(LC),beyond its applications in information display, has emerged as a versatile tool for manipulating VVBs. In this review, we focus on the functions and applications of typical LC devices in recent studies on controlling the space-variant polarized vortex light. Manipulation of VVBs through patterned nematic LC optical elements, patterned cholesteric LC optical elements, self-assembled defects, and LC spatial light modulators is discussed separately. Moreover, LC-based novel optical applications in the field of quantum information are reviewed.

关键词： liquid crystal vector beam q-plate orbital angular momentum entanglement two-photon interference

A Test of two-photon Entanglement in Spatial Modes

在线全文

学校读者我要写书评

暂无评论

A Test of Two-photon Entanglement in Spatial Modes