Replication of two-photon-polymerized structures with extremely high aspect ratios and large overhangs

We demonstrate the replication of 3-D structures created with an acrylic polymer using multiphoton absorption polymerization. Microtransfer molding was used to replicate complex structures rapidly and with high fidelity, including structures that have high aspect ratios or reentrant features. It is also possible to replicate large numbers of structures simultaneously.