Chlorophyll Absorption Analysis Enabled by Silicon-Rich Nitride-Based Concentric Ring Metalens

TL;DR

This paper introduces a silicon-rich nitride concentric-ring metalens operating at 685 nm, capable of focusing light efficiently to enable chlorophyll absorption analysis and plant health evaluation for the first time.

Contribution

The work demonstrates a novel SRN-based metalens with specific optical properties that facilitate plant health monitoring applications.

Findings

Achieved 0.5 numerical aperture and 36% focusing efficiency.

Enabled first-time metalens-based chlorophyll absorption analysis.

Potential for plant health evaluation using the metalens.

Abstract

A silicon-rich nitride (SRN) concentric-ring metalens, operating at 685 nm, achieves measured numerical aperture of 0.5 and 36\% focusing efficiency, enabling metalens-based chlorophyll absorption analysis and plant health evaluation for the first time.