Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

A P-matrix based model for SAW grating waveguides taking into account modes conversion at the reflection.

Marc Solal1, Vincent Laude, Sylvain Ballandras

  • 1Temex, BP 232, F-06904, Sophia Antipolis Cedex, France. marc.solal@temex.fr

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
|February 5, 2005
PubMed
Summary

A new model analyzes reflective grating wave-guiding, revealing guidance is possible even without velocity differences. This approach considers reflections in specific regions, accurately predicting guided modes and agreeing with experiments.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Metamaterials and Fluid Flows.

Nature communications·2026
Same author

Radio wave attenuation by a large-scale photonic crystal sculpture.

Scientific reports·2025
Same author

Emerging topics in nanophononics and elastic, acoustic, and mechanical metamaterials: an overview.

Nanophotonics (Berlin, Germany)·2024
Same author

Adjustable Phase-Amplitude-Phase Acoustic Metasurface for the Implementation of Arbitrary Impedance Matrices.

Research (Washington, D.C.)·2024
Same author

Non-reciprocal and non-Newtonian mechanical metamaterials.

Nature communications·2023
Same author

Micro-Scale Mechanical Metamaterial with a Controllable Transition in the Poisson's Ratio and Band Gap Formation.

Advanced materials (Deerfield Beach, Fla.)·2023

Area of Science:

  • Optics and Photonics
  • Waveguide Theory
  • Computational Electromagnetics

Background:

  • Existing models for reflective grating wave-guiding include scalar waveguide theory and paraxial coupling of modes (COM) models.
  • Scalar models assume different velocities in different regions.
  • Paraxial COM models predict guidance solely from reflectivity differences, even without velocity variations.

Purpose of the Study:

  • To develop a novel approach for analyzing the wave-guiding effect in reflective gratings.
  • To investigate the conditions under which wave guidance can occur, particularly focusing on reflectivity-driven phenomena.
  • To provide a more accessible and accurate model for analyzing practical devices.

Main Methods:

  • Determining guided modes and the continuum of radiating modes.

Related Experiment Videos

  • Treating reflections as occurring only in reflective regions at each period, leading to mode truncation.
  • Converting each mode into a distribution of all modes upon reflection and transmission.

    • Main Results:

    • The developed method yields dispersion curves similar to those from other researchers.
    • The results confirm the existence of guided modes even when wave velocity is identical across all regions.
    • The model demonstrates good agreement with experimental results.

    Conclusions:

    • The new model offers a simplified yet accurate method for analyzing wave-guiding in reflective gratings.
    • Reflectivity differences are sufficient to induce wave guidance, independent of velocity variations.
    • This approach facilitates the analysis of practical optical devices.