Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/12782
ชื่อเรื่อง: Enhancement of backward third-harmonic generation in a one-dimensional PIM/NIM periodic structure
ผู้แต่ง: Wicharn S.
Yindeesuk W.
Buranasiri P.
Keywords: Conversion efficiency
Crack propagation
Efficiency
Fast Fourier transforms
Harmonic analysis
Harmonic generation
Metamaterials
Nonlinear equations
Phase matching
Coupled mode equation
Dispersive properties
Electric and magnetic fields
Local field enhancement
Multiple scale method
Negative index material
Positive index materials
Third-harmonic frequencies
Periodic structures
วันที่เผยแพร่: 2018
บทคัดย่อ: A numerical simulation is reported for backward third-harmonic generation (BTHG) in a one-dimensional periodic structure containing a stack composed of positive-index material (PIM) and negative-index material (NIM). A multiple-scale method is used to formulate a completed set of coupled-mode equations with inhomogeneous higher-order nonlinear terms for both electric and magnetic fields. The coupled equations are numerically solved to simulate output third-harmonic frequency pulses and their conversion efficiencies by a fast Fourier transform–pulse propagation method. Finally, the numerical results validate the idea that using a combination of the negative-index phase-matched condition, which is created by engineering the dispersive property of the NIM layer, and local field enhancement, which is created by arranging PIM and NIM layers in an optimal periodic fashion, yields a dramatic enhancement of BTHG conversion efficiency. © 2018 Optical Society of America.
URI: https://ir.swu.ac.th/jspui/handle/123456789/12782
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85052734624&doi=10.1364%2fJOSAB.35.002125&partnerID=40&md5=d646a72975870584d073de29bcff520a
ISSN: 7403224
Appears in Collections:Scopus 1983-2021

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