Bridging Mid- and Near-Infrared by Combining Optomechanics and Self-Mixing

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 driven by light-induced forces exerted by a near-infrared excitation beam, which is amplitude-modulated at the membrane resonance frequency. This technique benefits from spectral broadness and, therefore, can link different spectral regions from both the excitation and the probe sides. This versatility can pave the way for future applications of this self-mixing-assisted optomechanical platform in free-space communication and advanced sensing systems.

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Publication Details

Journal
ACS Photonics
Published
2026-02-06
DOI
https://doi.org/10.1021/acsphotonics.5c03062
Primary Topic
Mechanical and Optical Resonators
Type
article
Field-Weighted Citation Impact
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Bridging Mid- and Near-Infrared by Combining Optomechanics and Self-Mixing

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Bridging Mid- and Near-Infrared by Combining Optomechanics and Self-Mixing

Alessandro Tredicucci, Iacopo Galli, Jérôme Faist, Paolo De Natale, Andrea Ottomaniello, Paolo Vezio, Cheng Zhang, Simone Borri, Tecla Gabbrielli, Alessandro Pitanti, Francesco Cappelli
article en

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 driven by light-induced forces exerted by a near-infrared excitation beam, which is amplitude-modulated at the membrane resonance frequency. This technique benefits from spectral broadness and, therefore, can link different spectral regions from both the excitation and the probe sides. This versatility can pave the way for future applications of this self-mixing-assisted optomechanical platform in free-space communication and advanced sensing systems.

ACS PhotonicsVol. 13(4)
Piaggio (Italy) (IT), ETH Zurich (CH), Istituto Nanoscienze (IT), Nello Carrara Institute of Applied Physics (IT), National Enterprise for NanoScience and NanoTechnology (IT), National Institute of Optics (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Pisa (IT), University of Florence (IT)
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Mechanical and Optical Resonators
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