Bridging mid and near infrared by combining optomechanics and self mixing

2025/09/15 by Gabbrielli, Tecla, Zhang, Chenghong, Cappelli, Francesco +8 · 1 citation
#FOS: Physical sciences #Optics (physics.optics)

paper · doi:10.48550/arxiv.2509.11729

Abstract

This work describes a self-mixing-assisted optomechanical platform for transferring information between near- and mid-infrared radiation. In particular, the self-mixing signal of a mid-infrared quantum cascade laser is used to detect the oscillation of a membrane induced by radiation pressure exerted by a near-infrared excitation beam, which is amplitude-modulated at the membrane resonance frequency. This technique is, in principle, wavelength-independent and, therefore, can link different spectral regions from both the excitation and probe sides. This versatility can pave the way for future applications of this self-mixing-assisted optomechanical platform in communication and advanced sensing systems.

Citations

• External optical feedback effects on semiconductor injection laser properties

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• Self-mixing-based photoacoustic sensing

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