Mask-directed micro-3D printing

Hernandez, Derek S.; Shear, Jason B.

doi:10.1016/b978-0-12-817827-0.00004-7

Three-Dimensional Microfabrication Using Two-Photon Polymerization 2020

DOI: 10.1016/b978-0-12-817827-0.00004-7

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Mask-directed micro-3D printing

Derek S. Hernandez

Jason B. Shear

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2023

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Directional, multi-beam, and compact wavefront transformers based on 3-D near-zero refractive index metamaterial

Marishwari¹,

Suresh²,

Ramalingam³

et al. 2023

Opt. Continuum

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Optical wavefront transformation is essential for communication and power transfer applications across all electromagnetic spectra. In this work, we report directional multi-beam compact wavefront transformers which convert cylindrical wavefronts into finite-aperture directional beams based on near-zero refraction in 3-D metamaterial at terahertz frequencies. For this purpose, a near-zero-index metamaterial (NZIM) with three-dimensional functionality is realized, and its effective material parameters are retrieved. Near-zero refraction in NZIM is verified through the uniform phase maintenance inside the multiple stacked NZIM layers. By embedding a cylindrical wavefront source inside NZIM configurations, uni-, bi-, and quad-directional wavefront transformers are realized. The results were compared and verified against the ideal cases.

show abstract

Directional, multi-beam, and compact wavefront transformers based on 3-D near-zero refractive index metamaterial

Marishwari¹,

Suresh²,

Ramalingam³

et al. 2023

Opt. Continuum

View full text Add to dashboard Cite

show abstract

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Mask-directed micro-3D printing

Cited by 1 publication

References 77 publications

Directional, multi-beam, and compact wavefront transformers based on 3-D near-zero refractive index metamaterial

Directional, multi-beam, and compact wavefront transformers based on 3-D near-zero refractive index metamaterial

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