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Enhancing imaging systems using transformation optics.

David R Smith¹, Yaroslav Urzhumov, Nathan B Kundtz

¹Center for Metamaterials and Integrated Plasmonics and Department of Electrical and Computer Engineering, Duke University, Box 90291, Durham, NC 27708, USA. drsmith@ee.duke.edu

|October 14, 2010

Summary

This summary is machine-generated.

Transformation optics enhances conventional optical devices by simplifying designs and improving performance. This technique enables low-loss, broad-bandwidth imaging systems with reduced aberrations and ultra-wide fields-of-view.

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Area of Science:

Optics and Photonics
Metamaterials
Imaging Science

Background:

Conventional refractive and gradient index optical devices have limitations in performance and field-of-view.
Transformation optics offers a powerful framework for designing novel optical functionalities.
Detector placement provides design freedom by simplifying wave behavior considerations.

Purpose of the Study:

To explore the application of transformation optics for improving conventional optical imaging devices.
To investigate the use of coordinate transformations for simplifying optical system designs.
To demonstrate enhanced performance metrics such as reduced aberration and wider fields-of-view.

Main Methods:

Applying quasi-conformal and conformal coordinate transformations.
Simplifying constitutive parameter distributions for optical media.
Analyzing Maxwell fish-eye and conventional refractive lenses.

Main Results:

Achieved simplified parameter distributions, realizable with isotropic and index-only media.
Demonstrated low-loss and broad-bandwidth characteristics for designed media.
Flattened a Maxwell fish-eye lens into a near-perfect relay lens.
Flattened the focal surface of a refractive lens, yielding an ultra-wide field-of-view and reduced aberration.

Conclusions:

Transformation optics provides a viable method for enhancing optical imaging systems.
Coordinate transformations lead to simplified, high-performance optical designs.
The developed techniques offer significant improvements for relay lenses and wide-field imaging.