Optofluidic random laser

TL;DR

This paper demonstrates a random laser using a dye in a microfluidic channel with inherent disorder, showing tunable lasing modes and potential for integrated sensing and light sources.

Contribution

It introduces a novel optofluidic random laser platform based on microfluidic channels with inherent disorder, enabling tunable lasing modes.

Findings

Random lasing observed in dye-filled microfluidic channels.

Lasing modes vary with pumping conditions.

Potential for on-chip sensing and light sources.

Abstract

An active disordered medium able to lase is called a random laser (RL). We demonstrate random lasing due to inherent disorder in a dye circulated structured microfluidic channel. We consistently observe RL modes which are varied by changing the pumping conditions. Potential applications for on-chip sources and sensors are discussed.