RIPPLE

The project RIPPLE was a 2024 winner of the PREMATURATION call for projects, led by the Innovation Lab of IP Paris.

Probing the quality of liquid samples can be daunting: a dedicated instrument is required for each type of measurement, either field deployable basic probes, or complex and highly sensitive laboratory equipments. Still, characterizing nano-objects remains un-reachable for the most part: nano-plastics in water, molecular assembly, protein-protein interactions.

Our project tackles those very issues. We have invented a simple-to-use, compact instrument capable of achieving laboratory levels of sensitivity for a multitude of multimodal measurements in a single experimental setup: turbidity, chemical pollutants, nano-plastics, or bacteria in water. Benefiting from light resonance, it unlocks measurements on minute signals at the nanoscopic scale.

The technology consists in a highly reflective Lambertian cavity allowing for the precise, multimodal probing of solutions: scattering spectroscopy, ring-down absorption spectro-scopy, ultra-weak fluorescent light detection.

• Record high 99.94% albedo
• 62m sample mean free path
• 10500 interferometric Finesse
• 2.7pm à 1kHz noise floor
• 8 to 10 decades dynamic ranges up to 100MHz
• 25pm sensitivity to colloid motion
• 100 to 1000 amplification compared to conventional methods

• First 3D stochastic spectrometer, unlocking new types of measurements for nano-objects
• Compact, deployable, laboratory-grade instrument
• Multimodal instrument combining all major liquid probing methods