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Pioneering 21st Century Electromagnetics and Photonics
Module 1 Introduction
Course Website:http://emlab.utep.edu/scSVL.htm
EM Lab Website:http://emlab.utep.edu/
Short CourseShort Course Outline
Module 1 Introduction What is a spatially-variant lattice? Why is it good?
Module 2 Spatially-Variant Planar Gratings Module 3 Spatially-Variant Lattices Module 4 MATLAB to CAD
7/2/2015 Slide 2SVL Short Course -- Module 1
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Spatially-Variant Lattices
Short Course
Metamaterials and Photonic Crystals
7/2/2015 SVL Short Course -- Module 1 Slide 4
Metamaterials Photonic Crystals
4a
2a
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Electromagnetic fields and waves cannot be controlled using homogeneous materials.
There must exist some kind of inhomogeneity.
If we use metamaterials, metasurfaces, and photonic crystals as artificial materials, why are so many lattices
macroscopically homogeneous?
Because it is not well known how to make them inhomogeneous without destroying their properties.
Imagine what we are missing!
Short Course
Spatially Variant Lattices:Uniform lattice
SVL Short Course -- Module 17/2/2015 Slide 6
Raymond C. Rumpf "Engineering the Dispersion and Anisotropy of Periodic Electromagnetic Structures," to be published in Solid State Physics, Vol. 66, 2015.
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Short Course
Spatially Variant Lattices:Spatial variance with too much deformation
SVL Short Course -- Module 17/2/2015 Slide 7
Raymond C. Rumpf "Engineering the Dispersion and Anisotropy of Periodic Electromagnetic Structures," to be published in Solid State Physics, Vol. 66, 2015.
Short Course
Spatially Variant Lattices:Spatial variance with minimal deformations
SVL Short Course -- Module 17/2/2015 Slide 8
Raymond C. Rumpf "Engineering the Dispersion and Anisotropy of Periodic Electromagnetic Structures," to be published in Solid State Physics, Vol. 66, 2015.
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Achievements Using Spatially-
Variant Structures
Short Course
Polarization Control Using Spatially-Variant Form Birefringence
7/2/2015 SVL Short Course -- Module 1 Slide 10
A. Mehta, J. D. Brown, P. Srinivasan, R. C. Rumpf, E. G. Johnson, Spatially polarizing autocloned elements, Opt. Lett. 32, 19351937 (2007) .
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Short Course
Compensation for Surface Curvature
SVL Short Course -- Module 1
R. C. Rumpf, M. Gates, C. L. Kozikowski, W. A. Davis, "Guided-Mode Resonance Filter Compensated to Operate on a Curved Surface," PIER C, Vol. 40, pp. 93-103, 2013.
7/2/2015 Slide 11
Short Course
Spatially-Variant Self-Collimation
7/2/2015 SVL Short Course -- Module 1 Slide 12
unit cell orientation (degrees)
~20 dB
Manufactured by 3D printing Operated at 15 GHz
R. C. Rumpf, J. Pazos, C. R. Garcia, L. Ochoa, and R. Wicker, "3D Printed Lattices with Spatially Variant Self-Collimation," PIER, Vol. 139, pp. 1-14, 2013.
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Short Course
Worlds Tightest Optical Bend
SVL Short Course -- Module 1
30 m
Worlds tightest unguided bend (R = 6.70).
Utilized very low refractive index (SU-8, n 1.59).
Operated at 0 = 2.94 m.
J. L. Digaum, J. J. Pazos, J. Chiles, J. D'Archangel, G. Padilla, A. Tatulian, R. C. Rumpf, S. Fathpour, G. D. Boreman, and S. M. Kuebler, "Tight Control of Light Beams in Photonic Crystals with Spatially-Variant Lattice Orientation," Optics Express, Vol. 22, Issue 21, pp. 25788-25804, 2014.
7/2/2015 Slide 13
Short Course
Zero Mode Coupling in MM Waveguides with Sharp Bends
SVL Short Course -- Module 1
First-Order Mode Third-Order ModeSecond-Order Mode
7/2/2015 Slide 14
R. C. Rumpf, et al, Spatially-variant periodic structures in electromagnetics, accepted for publication in Phil. Trans. A, Dec. 2014.
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Short Course
Applications of SVPCs in Integrated Optics
SVL Short Course -- Module 1
SharpWaveguideBends
OpticalBus
PrintedCircuitBoard
OptoelectronicBGAPackagewithVCSELArrayUnderneath
VCSEL
OrdinaryWaveguide
SVPCFunnel+Bend
SVPCJumper
7/2/2015 Slide 15
Short Course
Microstrip Made Immune to Metal Object in Close Proximity
SVL Short Course -- Module 1
R. C. Rumpf, C. R. Garcia, H. H. Tsang, J. E. Padilla, M. D. Irwin, "Electromagnetic Isolation of a Microstripby Embedding in a Spatially Variant Anisotropic Metamaterial," PIER, Vol. 142, pp. 243-260, 2013.
7/2/2015 Slide 16
Patent Pending
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Short Course
Two Antennas Decoupled in 3D Printed Mobile Phone
SVL Short Course -- Module 1
Patent Pending7/2/2015 Slide 17
Short CourseArrays on Curved Surfaces
7/2/2015 SVL Short Course -- Module 1 Slide 18
Periodic structures can be placed onto curved surfaces without deforming the elements or their spacing.
perspective view
top view
R. C. Rumpf, et al, Spatially-variant periodic structures in electromagnetics, accepted for publication in Phil. Trans. A, Dec. 2014.
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Short Course
Combining Spatial Transforms with Synthesis Tool (1 of 2)
SVL Short Course -- Module 1
Step 1 of 4:Define Spatial Transform C
7/2/2015 Slide 19R. C. Rumpf, et al, Spatially-variant periodic structures in electromagnetics, accepted for publication in Phil. Trans. A, Dec. 2014.