Femtosecond Projection NanoPrinter

Currently, prototyping for widely used micro-optics and photonics devices such as diffractive optical elements, microlens arrays, photomasks, metalenses is expensive, has long lead times. The NanoPrinter significantly reduces fabrication cost (90%), and lead times (95%). In addition, our system also offers the capability to fabricate complex 3D structures with 17+ materials.

• Our novel optical system generates high-energy light sheets to simultaneously achieve high-resolution, high-throughput, and low-cost two-photon polymerization. Compared with existing state-of-the-art commercial two-photon lithography products, our method is 100-1000 times faster at comparable resolution (150 nm), at 10 times lower fabrication cost.
• Recently, we became the only system to achieve 3D nanofabrication at 30 nm with 17+ materials by combining the light sheets with swellable hydrogels. Two-photon lithography systems are limited to 100s nm resolution and only photo-polymer materials, whereas electron beam lithography and diamond turning are limited to 2D-2.5D fabrication.

• Our technology can significantly reduce manufacturing costs and solve supply chain bottlenecks for optical devices used in LiDAR, cellphones, QR code scanners, AR/VR products.
• Current commercial two-photon lithography products are limited to laboratory use due to low scanning speeds and high print costs. Our technology for the first time enables two-photon lithography to scaled for mass production and industry applications by simultaneously achieving high-throughput, high-resolution, and low-cost fabrication.
• We offer a disruptive approach for developing new functional and biocompatible microdevices, optical metamaterials, and flexible electronics.
•  May lead to breakthroughs in photonics, nanotechnology, and biotechnology due to the demonstrated throughput, resolution, and material generality.

• International Exhibition of Inventions of Geneva 2023: Silver Medal
• Photo of the award: https://cpii.hk/wp-content/uploads/2023/06/Screenshot-2023-06-01-at-3.13.17-PM.png

• Micro-optical devices such as diffractive optical elements, microlens arrays, photomasks, metalenses

• U.S. Patent No. 11,312,067
• U.S. Patent No. 10,207,365
• U.S. Utility Patent Application No. 17/302,671