Photonic Band Gap Negative Index Imaging

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Presentation transcript:

Photonic Band Gap Negative Index Imaging Collaboration of the UCSD and MIT (Joannopoulos/Chen Groups) Data Summary of UCSD Group Close Up of Sample Top View

Special Testing Apparatus

Transverse Field Profile Without Sample

Illustration of Imaging with PBG

Illustration of Difficulties With Near Field Imaging

2D Mapping (u=1.9mm, Hole Centered) 1mm 40mm 80mm -80mm 6.0185 GHz

Metamaterials for Curved Lenses UCSD

Why Curved Lenses? Focuses Near Fields Super resolution imaging Slabs (“Perfect Lens”) Curved Lenses Focuses Near Fields Super resolution imaging Super resolution illumination Focuses far fields Antennas Far field imaging

Why Metamaterials? Focusing performance Matching Compactness Weight

Focusing Performance Optical Aberration Coefficients Gaussian optical formulas describe ideal point focusing. Aberration coefficients describe the deviation of a focus from an ideal point. Spherical Coma Astigmatism Field curvature Distortion

Optical Aberrations Coefficients z x y z c200 spherical c110 coma c020 astigmatism c101 field curvature c011 distortion

Isotropic Spherical Coma Astigmatism Field curvature Distortion

Indefinite Spherical Coma Astigmatism Field curvature Distortion

Lens Aberration Comparison

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