New interface waves propagating along the contact between the media with a hyperbolic profile of the dielectric function and a step-change in the Kerr nonlinearity coefficients

IF 3.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical and Quantum Electronics Pub Date : 2025-03-04 DOI:10.1007/s11082-025-08098-z

S. E. Savotchenko

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Abstract

New types of nonlinear interface waves propagating along a planar interface between a hyperbolic gradient medium and nonlinear medium characterized by a step-wise change in the Kerr nonlinearity coefficients under the electric field influence are obtained. The influence of the waveguide system parameters on the spatial profiles of the field distribution in the direction transverse to the interface is analyzed in detail. The height of the peak intensity of waves in the case of self-focusing nonlinearity increases, and that of waves in the case of defocusing nonlinearity decreases with an increase in the effective refractive index. The maximum intensity of the wave field in a self-focusing medium can be located in the nonlinear near-interface layer, and the peak can move to the hyperbolic gradient medium with an increase in the characteristic distance of the hyperbolic profile, however, the maximum intensity of the wave field in a defocusing medium can always be located in the hyperbolic gradient medium. The influence of the waveguide system parameters on the control of the width of the formed near-interface layer for the waves of the two types under consideration differs significantly. Comparative analysis of the relative intensities and relative power flows shows that their behavior is identical depending on the control parameters of the waveguide system at a qualitative level. The largest share of energy flow is concentrated in the nonlinear near-interface layer in the case of self-focusing nonlinearity and it is concentrated in the hyperbolic gradient medium in the case of defocusing nonlinearity.

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沿介质接触传播的新界面波，介电函数为双曲剖面，克尔非线性系数为阶跃变化

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来源期刊

Optical and Quantum Electronics 工程技术-工程：电子与电气

CiteScore

4.60

自引率

20.00%

发文量

810

审稿时长

3.8 months

期刊介绍： Optical and Quantum Electronics provides an international forum for the publication of original research papers, tutorial reviews and letters in such fields as optical physics, optical engineering and optoelectronics. Special issues are published on topics of current interest. Optical and Quantum Electronics is published monthly. It is concerned with the technology and physics of optical systems, components and devices, i.e., with topics such as: optical fibres; semiconductor lasers and LEDs; light detection and imaging devices; nanophotonics; photonic integration and optoelectronic integrated circuits; silicon photonics; displays; optical communications from devices to systems; materials for photonics (e.g. semiconductors, glasses, graphene); the physics and simulation of optical devices and systems; nanotechnologies in photonics (including engineered nano-structures such as photonic crystals, sub-wavelength photonic structures, metamaterials, and plasmonics); advanced quantum and optoelectronic applications (e.g. quantum computing, memory and communications, quantum sensing and quantum dots); photonic sensors and bio-sensors; Terahertz phenomena; non-linear optics and ultrafast phenomena; green photonics.