Role played by port drains in a Maxwell fisheye lens

TL;DR

This paper investigates how port drains influence super-resolution in Maxwell fisheye lenses, combining theoretical predictions with wave simulations to understand their role in optical imaging and potential for near-field scanning.

Contribution

It provides a detailed analysis of port drains' role in Maxwell fisheye lenses and verifies their coupling effect through wave simulations, advancing understanding of super-resolution mechanisms.

Findings

Coupling nature of wave source and drain is confirmed in simulations.

Port drains significantly impact subwavelength resolution.

Potential for scanning near-field imaging from far-field wave propagation.

Abstract

Maxwell fisheye lens was proposed to reach super-resolution with the addition of wave drain, and the interaction of multiple drains is theoretically predicted to improve subwavelength resolution further. In this paper we discuss the role played by port drains in optical absolute instruments, and verify by wave simulation that coupling nature for wave source and drain applies correctly in the picture of scanning imaging for absolute instrument. This work prospects for scanning near fields shaped from far-field wave propagation.