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Discrete talbot effect in waveguide arrays

WebDiscrete plasmonic Talbot effect in the subwavelength metal waveguide arrays (SMWAS) is theoretically analyzed and numerically simulated. Based on the finite-difference time-domain technique, we discuss the influence of the … WebMar 15, 2008 · We discuss the discrete Talbot effect in one- and two-dimensional waveguide lattices under the influence of an external potential. It is shown that the field recovery can be precisely tuned by changing the gradient of the potential. ... It turned out, that waveguide arrays possess unique imaging [2] and propagation [3] properties, …

Talbot effect in nonparaxial self-accelerating beams with

WebDec 1, 2024 · Recently, we have study the discrete Talbot effect and subwavelength focusing in MWGAs [15], [16], where the supermode theory of SPPs is put forward to explain these phenomena. In this paper, we propose all-optical logic gates based on MWGAs. The supermode theory of SPPs mentioned in Refs. [15], [16] is used to guide the design of … WebAbstract:We theoretically study discrete Talbot self-imaging in hexagonal, square, and irregular two-dimensional waveguide arrays. Different from its counterpart in a continuous system, the periods of the input fields must belong to {1, 2, 3, 4, 6} for Talbot self-imaging. dailymotion 2022 https://karenmcdougall.com

The field distribution in a finite number of nanostructured metal ...

WebJan 1, 2013 · The optical power splitter base on multimode interference waveguide has been proposed [9], [10], [11]. Iwanow et al. explored discrete Talbot revivals in one-dimensional waveguide arrays [12]. Self-imaging phenomena in periodic dielectric waveguides have been predicted and investigated based on multimode interference … WebJan 1, 2013 · The coupling characteristics of the finite waveguide arrays are analyzed by taking into account the coupling between the non-adjacent waveguides. The sufficient condition to achieve Talbot effect in the waveguide arrays is discussed. The results show that the condition is more rigorous than that obtained by only considering adjacent coupling. WebAbstract:We theoretically study discrete Talbot self-imaging in hexagonal, square, and irregular two-dimensional waveguide arrays. Different from its counterpart in a … dailymotion 2be3

Discrete Talbot effect in dielectric graphene plasmonic waveguide arrays

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Discrete talbot effect in waveguide arrays

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WebFeb 27, 2024 · Discrete Talbot effect in modulated lattices with PT symmetric perturbations Xinyue Kang, Hao Wang, Lichao Dou, Qixuan Chen, Qian Zhang, Tingjun Zhao, and Kaiyun Zhan J. Opt. Soc. Am. B 40(4) 856-861 (2024) Non-Hermitian coupling of orbital angular momentum modes in optical waveguides

Discrete talbot effect in waveguide arrays

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WebJan 10, 2024 · The free-space Talbot effect may be mapped to a description of the self-imaging properties of a planar multimode waveguide. The theory of the waveguide Talbot effect follows that of the free-space Talbot effect once account is taken of the (near) zero of the field introduced by the waveguide sidewalls. WebJul 24, 2005 · PDF - We report the first observation of discrete Talbot revivals in one-dimensional waveguide arrays. Unlike continuous systems where the Talbot self …

WebDec 10, 2014 · In the past two decades, both linear and nonlinear light evolution in waveguide arrays were discovered and studied, including harmonic oscillation [ 2 ], discrete Talbot effect [ 3 ], Aharonov–Bohm effect [ 4 ], self-imaging [ 5, 6] and generation of discrete solitons [ 7, 8 ]. WebDiscrete Talbot effect in waveguide arrays. @article{Iwanow2005DiscreteTE, title={Discrete Talbot effect in waveguide arrays.}, author={Robert Iwanow and Daniel …

WebThe diffraction pattern is reproduced completely at detection positions of an integer multiple of twice the Talbot lengths. Meanwhile, the fractional Talbot effect, presented as complicated subimages at special positions, is also clearly observed. Furthermore, the theoretical simulations are conducted and agree well with the experimental results. WebApr 13, 2015 · The propagating field exhibited the well-known self-imaging phenomenon known as the Talbot effect. The metallic waveguides are lossy. The influence of various parameters on the losses was...

WebMay 19, 2008 · Discrete Talbot effect is only possible for just a few pattern periodicities which belong to the set N ∈ { 2, 3, 4, 6 } [17], while for any other pattern period its propagation becomes aperiodic [see an example for N = 7 in Fig. 3 (a)]. Also, the pattern must be necessarily periodic and infinite [or very wide in practical conditions].

WebApr 15, 2015 · We introduce supermode theory into the propagation of surface plasmon polaritons (SPPs) in nanoscale metal waveguide arrays (MWGAs). ... Discrete plasmonic Talbot effect in finite metal waveguide arrays Opt Lett. 2015 Apr 15;40(8):1635-8. doi: 10.1364/OL.40.001635. Authors Xiaoyan Shi, Wu Yang, Huaizhong Xing, Xiaoshuang … biological weapon of mass destructionWebSep 3, 2024 · Due to the strong mechanical Kerr effect, the optical self-focusing and self-defocusing phenomena can be realized in the arrays of subwavelength dielectric optomechanical waveguides with the milliwatt-level incident powers and … dailymotion 2645WebDec 14, 2024 · The band structure is drastically dependent on the helix radius and period, and the complete collapse of quasi-energy bands occurs for a certain helix radius and … biological ways to kept rid of bed bugs