# III-Nitrides empower miniaturized spectral imager in ultraviolet

## TL;DR

Researchers created a small, high-performance ultraviolet spectral imager using III-nitride materials, enabling compact and accurate UV imaging.

## Contribution

The work introduces a scalable, miniaturized UV spectral imager using III-nitride cascaded photodiodes with sub-10 ns response and 0.62 nm accuracy.

## Key findings

- The imager achieves 0.62 nm spectral accuracy in the ultraviolet range.
- It demonstrates sub-10 nanosecond response times for fast spectral imaging.
- The design leverages III-nitride technology for compact and high-resolution imaging.

## Abstract

A high-performance miniaturized on-chip spectral imager operating in the ultraviolet region is demonstrated based on an AlGaN/GaN cascaded photodiode array. This work extends spectral imaging into the ultraviolet regimes by leveraging the mature III-nitride technologies and establishes a scalable pathway toward massive production of compact, high-resolution spectral imagers.

A miniaturized on-chip spectral imager based on III-nitride cascaded photodiodes achieves 0.62 nm accuracy and sub-10 ns response, extending spectral imaging into the ultraviolet regime.