Parallel Two-Photon Polymerization for Sub-Micrometer Additive Manufacturing

Sourabh Saha | 16-ERD-047

Executive Summary

We are designing and developing the materials and equipment necessary to implement a system to produce novel polymer material used to form patterns used in additive manufacturing and photolithography. This research has the potential to improve the rate, resolution, and scalability of additive manufacturing, with applications in high-energy-density science and stockpile stewardship science.

Publications and Presentations

Ladner, I. S., et al. 2018. "MEMS Tensile Tester for Direct Metrology of Two-Photon Polymerization Stitching." 2018 Winter Topical Meeting Precision Engineering for Micro and Nanotechnology, Livermore, CA, February 2018. LLNL-ABS-742003.

——— . 2018. "Mechanical Characterization of Additively Manufactured Microstructures Using a Process Integrated MEMS Tensile Tester." Hilton Head Workshop 2018: A Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head Island, SC, June 2018. LLNL-PROC-748753.

Nguyen, V. H., et al. 2018. "Dosage Compensation for Uniform Printing with Non-Uniform Beams in Projection Two-Photon Lithography." ASPE and euspen Summer Topical Meeting - Advancing Precision in Additive Manufacturing, Berkeley, CA, July 2018. LLNL-CONF-754187.

——— . 2018. "Submicron Additive Manufacturing Based on Parallel Two-Photon Lithography." 2018 ASPE and euspen Summer Topical Meeting, Berkeley, CA, July 2018. LLNL-ABS-741715.

——— . 2018. "Bitmap Generation for Digital Micromirrors Used in Parallel Two-Photon Lithography." SPIE Optical Engineering + Applications Conference, San Diego, CA, August 2018. LLNL-PRES-756705.

Saha, S., et al. 2018. "Parallel two-photon lithography for 3D printing of millimeter scale parts with submicron features". SPIE Photonics West Exhibition 2018, San Francisco, CA, February 2018. LLNL-ABS-734909.

——— . 2018. "Scalable Submicron Additive Manufacturing Based on Parallel Two-Photon Lithography." 2018 MRS Spring Meeting and Exhibit, Phoenix, AZ, April 2018. LLNL-ABS-740672.

——— . 2018. "Parallel Two-Photon Lithography with Sub-Diffraction Voxel Shaping." Solid Freeform Fabrication 2018: Proceedings of the 29th Annual International Solid Freeform Fabrication Symposium, Austin, TX, August 2018. LLNL-ABS-749365.

——— . 2018. "Radiopaque Resists for Two-Photon Lithography to Enable Submicron 3D Imaging of Polymer Parts Via X-ray Computed Tomography." ACS Applied Materials and Interfaces 10(1): 1164–1172. doi: 10.1021/acsami.7b12654. LLNL-JRNL-732780.