Two-Photon Polymerization (2PP)
Within the DFG-funded priority program (SPP1327) our aim is to produce sub-100 nm structure sizes by using the 2PP technique. In the experiments we utilize our home-built non-collinear optical parametric amplifier (NOPA) [ME1] which supports pulses with up to 300 nm of optical bandwidth and durations of sub-10-fs and one of the legendary VENTEON Ti:sapphire oscillators with pulse durations of less than 5 fs.
With these systems we are able to create structures with sub-100 nm resolution - more than 1000 times thinner than a human hair!
- NEW PUBLICATION: "Two-photon polymerization technique with sub-50 nm resolution by sub-10 fs laser pulses", Moritz Emons, Kotaro Obata, Thomas Binhammer, Aleksandr Ovsianikov, Boris N. Chichkov, and Uwe Morgner (2012): Opt. Mat. Express 2, 942-947, 2012 | file | more
- "Development of functional sub-100 nm structures with 3D two-photon polymerization technique and optical methods for characterization",
- "Sub-10-fs pulses from a MHz-NOPA with pulse energies of 0.4 μJ“, Moritz Emons, Andy Steinmann, Thomas Binhammer, Guido Palmer, Marcel Schultze, and Uwe Morgner; Optics Express 18, No. 2, pp. 1191-1196 (2010) URL http://www.opticsinfobase.org/abstract.cfm?id=194413
- Homepage of the German DFG-funded priority program (SPP1327) on ‘Optically generated sub-100 nm structures for technical and biomedical applications,’ within the sub-project ‘Development of functional sub-100 nm 3D two-photon polymerization technique and optical characterization methods.’ http://www.spp1327.de/