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Updated: Mar 19, 2026
08:04
Measuring Sensitivity to Viewpoint Change with and without Stereoscopic Cues
Published on: December 4, 2013
4.8K
Objects invisible from multiple directions
Summary
Researchers explored simplified invisibility cloaks using a traditional method. Increasing the number of invisibility directions significantly reduced the scattering cross-section of these devices.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Early invisibility cloaks required complex, anisotropic, and magnetically responsive materials, which are difficult to realize.
- Research has shifted towards simplified invisibility schemes prioritizing practical design over absolute perfection.
Purpose of the Study:
- To investigate Devaney's traditional method for creating multi-angle invisibility devices.
- To analyze the relationship between the number of invisibility directions and the scattering cross-section in the weak scattering limit.
Main Methods:
- Utilized Devaney's established method for constructing multi-angle invisibility devices.
- Analyzed objects within the weak scattering limit.
Main Results:
- Demonstrated a significant reduction in the scattering cross-section.
- Showed that increased invisibility directions correlate with decreased scattering.
Conclusions:
- Devaney's method offers a practical approach to multi-angle invisibility.
- Simplified invisibility schemes can achieve substantial reductions in scattering by increasing the number of invisibility directions.
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