revolutionnalising the fabrication of meta-optics
a unique technology combined with premium materials
Solnil is at the forefront of revolutionizing optical materials with our cutting-edge patented resins enabling the creation of materials with extreme refractive indices, ranging from 1.12 (AIR-COAT) to 2.6 (HiRI-COAT) in the visible spectrum.
Our versatile resins can be deposited as thin coatings using conventional liquid deposition methods, while also allowing the creation of metasurfaces when paired with our innovative etch-free nano-imprint lithography process.
Why is it different?
Premium Materials for Exceptional Transparency obtained from SOLNIL’s resins
Solnil’s patented resins, originate from 25-years of deep research in sol-gel chemistry by Prof. D. Grosso, between the LCMCP in Paris and the CiNaM in Marseille. They were developed in order to create robust materials with extreme and tailored optical properties to meet end-user requirements.
HiRI-COAT
Obtained through a tight arrangement of inorganic crystalline building blocks (less than 10 nm) into a dense, porosity-free structure, offering superior transparency with optical loss and haze below 0.1% for RI < 2.4 and below 0.3% for 2.4 < RI < 2.6. HiRI-COAT is well-suited for nano-structuration by NIL and gap-filing by spin- or dip-coating.
AIR-COAT
Produced through careful self-organization of nano-sized pores into a 3D inorganic network, ensuring unmatched clarity (<0.05% optical loss) and robustness. AIR-COAT is specifically useful as a cladding layer to encapsulate high-index metasurface elements.
OTHER MATERIALS
Materials with on-demand optical properties (tailored refractive indices, highly scattering or absorbing) can be produced by seamlessly blending both low and high-index materials and combining them with other additives.
Find out more about the applications developed with this technology.
Measurable benefits
1.12 < RI < 2.6 (+/- 0.01)
Haze: < 0,1% for AIR-COAT and < 0.3% for HiRI-COAT
Highly transparent: absorption < 0.1% (RGB),
or highly scattering: high haze,
or highly absorbing: black
30°C / 60°C
@365 nm
85°C + 85% RH
Laser dicing
Dropping
Curing: to be adjusted between 100 °C and 800 °C depending on the required optical conditions and process compatibility
Coatings: all liquid deposition techniques
Thickness: < 100 nm for HiRI-COAT and < 2500 nm for AIR-COAT (multilayers for thicker coatings)
NIL: Demonstrated imprinting onto 20 cm diameter, motives down to 25 nm lateral dimensions, aspect ratio up to 7.
discover our applications
Are you developing the optics of the future?
This is what solnil does.
To discuss your technical needs or to initiate a collaboration, contact our team.