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Metamaterials for Curved Lenses Geometric optic analysis of lenses composed of continuous negative index media. UCSD.

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Presentation on theme: "Metamaterials for Curved Lenses Geometric optic analysis of lenses composed of continuous negative index media. UCSD."— Presentation transcript:

1 Metamaterials for Curved Lenses Geometric optic analysis of lenses composed of continuous negative index media. UCSD

2 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 Far field applications Antennas Cameras Telescopes etc

3 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

4

5 Seidel Aberration Coefficients for thin lens
Spherical Coma Astigmatism Field Curvature Distortion Shape Factor Position Factor

6 Lens aberrations For zero coma Spherical Astigmatism Field curvature
Shape factor

7 Lens aberrations For zero spherical aberration Coma Astigmatism
Field curvature Shape factor

8 Lens Aberrations Finite object position Zero Spherical and Coma
Astigmatism Field curvature Shape factor Position factor

9 Conclusions Negative index lenses can have superior far field focusing properties. Single element lenses can only have real aplanatic points with negative index.


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