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Multiple drains in generalized Maxwell's fisheye lenses
Optics Express
|December 31, 2020
Summary
Coherent perfect absorbers (CPAs) integrated into generalized Maxwell
Area of Science:
- Wave optics
- Metamaterial applications
- Nanophotonics
Background:
- Previous studies demonstrated subwavelength imaging in Maxwell's fisheye lenses with a single drain.
- Generalized Maxwell's fisheye (GMFE) lenses offer potential for advanced optical functionalities.
Purpose of the Study:
- To theoretically investigate the performance of coherent perfect absorbers (CPAs) within GMFE lenses.
- To explore the application of CPAs as drains for enhancing image resolution and enabling subwavelength imaging.
- To analyze the multiple imaging characteristics of GMFE lenses incorporating multiple CPAs.
Main Methods:
- Theoretical analysis of wave propagation in GMFE lenses with embedded CPAs.
- Full-wave simulations to validate the imaging performance and functionalities.
- Investigation of CPA as drains for coherent wave absorption.
Main Results:
- CPAs significantly enhance the resolution of images in GMFE lenses.
- Subwavelength imaging is achievable by embedding CPAs within GMFE lenses.
- GMFE lenses with multiple CPAs exhibit interesting multiple imaging characteristics.
Conclusions:
- CPAs are effective components for improving image resolution in GMFE lenses.
- The integration of CPAs enables subwavelength imaging capabilities in GMFE systems.
- GMFE lenses with CPAs offer a promising platform for advanced optical imaging applications.
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