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Logo: Institut für Quantenoptik/Leibniz Universität Hannover
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Logo: Institut für Quantenoptik/Leibniz Universität Hannover
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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!  

Literature:

  • 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
    DOI: dx.doi.org/10.1364/OME.2.000942
  • "Development of functional sub-100 nm structures with 3D two-photon polymerization technique and optical methods for characterization",

    V. Ferreras Paz, M. Emons, K. Obata, A. Ovsianikov, S. Peterhänsel, K. Frenner, C. Reinhardt, B. Chichkov, U. Morgner, and W. Osten (2012): J. Laser Appl. 24, 042004, 2012   more

    DOI: http://dx.doi.org/10.2351/1.4712151

  • "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 

Links: 

  • 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

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