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

Frequency domain transformation optics for diffusive photon density waves' cloaking.

Mohamed Farhat, Sebastien Guenneau, Tania Puvirajesinghe

    Optics Express
    |November 25, 2018
    PubMed
    Summary

    This study demonstrates light cloaking for spherical objects using transformation optics in a diffusive regime. The research shows that heterogeneous anisotropic diffusivity is key, with absorption playing a minor role in reducing scattering.

    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

    Gyroid porous inserts as a novel flow control to mitigate tip vortex cavitation.

    Experiments in fluids·2026
    Same author

    Gyroid as a novel approach to suppress vortex shedding and mitigate induced vibration.

    Scientific reports·2025
    Same author

    Clay metaBrick-based motif to enhance thermal and acoustic insulationa).

    The Journal of the Acoustical Society of America·2025
    Same author

    Machine learning assisted plasmonic metascreen for enhanced broadband absorption in ultra-thin silicon films.

    Light, science & applications·2025
    Same author

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

    Nanophotonics (Berlin, Germany)·2024
    Same author

    Observation of Ultra-High-Q Resonators in the Ultrasound via Bound States in the Continuum.

    Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2024

    Area of Science:

    • Optics
    • Diffusion Physics
    • Transformation Optics

    Background:

    • Cloaking aims to render objects invisible by controlling wave propagation.
    • Previous cloaking methods often focus on wave phenomena like light or sound.
    • The diffusive regime presents unique challenges for cloaking due to scattering properties.

    Purpose of the Study:

    • To achieve cloaking operation for spherical objects in the light diffusive regime.
    • To investigate the role of spatially varying optical properties in cloaking.
    • To compare diffusive cloaking with acoustic and electromagnetic cloaking.

    Main Methods:

    • Utilizing the transformation optics technique.
    • Designing a cloak with spatially heterogeneous anisotropic diffusivity.

    Related Experiment Videos

  • Incorporating spatially varying speed of light and absorption.
  • Performing analytic calculations of photon's fluence.

    • Main Results:

    • Demonstrated cloaking operation in the light diffusive regime for spherical objects.
    • Confirmed the minor role of absorption in reducing far-field scattering.
    • Observed a monopole fluence field converging to a constant in the invisibility region.
    • Highlighted differences from acoustic and electromagnetic cloaks where the field vanishes inside the core.

    Conclusions:

    • Cloaking in the light diffusive regime is achievable with specific optical property designs.
    • Heterogeneous anisotropic diffusivity is crucial for effective cloaking.
    • The findings have implications for mass diffusion phenomena, suggesting similar cloaking strategies.