title: Overlapped optics induced perfect coherent effects.
abstract: For traditional coherent effects, two separated identical point sources can be interfered with each other only when the optical path difference is integer number of wavelengths, leading to alternate dark and bright fringes for different optical path difference. For hundreds of years, such a perfect coherent condition seems insurmountable. However, in this paper, based on transformation optics, two separated in-phase identical point sources can induce perfect interference with each other without satisfying the traditional coherent condition. This shifting illusion media is realized by inductor-capacitor transmission line network. Theoretical analysis, numerical simulations and experimental results are performed to confirm such a kind of perfect coherent effect and it is found that the total radiation power of multiple elements system can be greatly enhanced. Our investigation may be applicable to National Ignition Facility (NIF), Inertial Confined Fusion (ICF) of China, LED lighting technology, terahertz communication, and so on.
authors.affiliation: Key Laboratory of Ministry of Education of China of Design and Electromagnetic Compatibility of High Speed Electronic System, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
authors.forename: Jian Jie
authors.initials: JJ
authors.lastname: Li
authors.affiliation: 1] Engineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, No.516 JunGong Road, Shanghai 200093, People's Republic of China [2].
authors.forename: Xiao Fei
authors.initials: XF
authors.lastname: Zang
authors.affiliation: Key Laboratory of Ministry of Education of China of Design and Electromagnetic Compatibility of High Speed Electronic System, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
authors.forename: Jun Fa
authors.initials: JF
authors.lastname: Mao
authors.affiliation: Key Laboratory of Ministry of Education of China of Design and Electromagnetic Compatibility of High Speed Electronic System, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
authors.forename: Min
authors.initials: M
authors.lastname: Tang
authors.affiliation: Engineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, No.516 JunGong Road, Shanghai 200093, People's Republic of China.
authors.forename: Yi Ming
authors.initials: YM
authors.lastname: Zhu
authors.affiliation: Engineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, No.516 JunGong Road, Shanghai 200093, People's Republic of China.
authors.forename: Song Lin
authors.initials: SL
authors.lastname: Zhuang