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Updated: May 13, 2026

Implementation of a Reference Interferometer for Nanodetection
Published on: April 26, 2014
Far field free-space measurement of three dimensional hole -in -Teflon invisibility cloak
Ning Wang1, Yungui Ma, Ruifeng Huang
1Center for Superconducting and Magnetic Materials, Department of Physics, National University of Singapore, Singapore 117524, Singapore. g0900743@nus.edu.sg
Abstract:
In this paper, we report a fabrication of a three-dimensional (3D) carpet cloak that works for any polarization in free space. Two-dimensional (2D) conformal mapping is first employed and the 3D structure is generated by a rotation of the 2D cloak. The structure of the cloak is hole-in-dielectric. The triangular invisible region has a height of 36 mm (one third of the height of the whole device) and a width of 240 mm. The cloaking effect is examined in free space by measuring the scattering parameters. The results show our device has very good cloaking performance in a wide frequency range from 4 to 10 GHz.

