Work

Broadband chromatic-aberration-corrected metalens integrating a 1D grating structure for spectral dispersion and focusing

Year: 2026

Type: article

Abstract: Metalenses integrating spectral dispersion and focusing are promising for compact spectrometers, but broadband continuous spectral dispersion perpendicular to the optical axis is hindered by chromatic aberration. We introduced a one-dimensional grating structure into a metalens and corrected chromatic aberration by spatial multiplexing over 1.31-1.65 µm. This design achieved dispersion and focusing while maintaining chromatic-aberration correction. Optical characterization showed wavelength-dependent focal spots along an axis perpendicular to the optical axis, with 1.31- and 1.65-µm light separated by 5.3° after transmission.

Source: Optics Express

DOI: 10.1364/oe.611777

Authors: Takaaki Morimoto, Yuusuke Takashima, Kenzo Yamaguchi, Yoshiki Naoi, Masanobu Haraguchi, Toshihiro Okamoto

Institutions: Glory (Japan), Tokushima University, Institute of Post-LED Photonics, Tokushima University, Anan National College of Technology

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

OpenAlex ID: W7221017557

FWCI:

Cites: 34

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Related to: 10