Nanooptics Group - Faculty for Chemistry and Pharmacy

Ultrafast Nanooptics

We aim at investigating and controlling the optical response of single nanoscale objects on a 10 fs timescale. To this end, we have developed a setup combining a 4f laser pulse shaper and a high NA confocal optical microscope.


  1. Alberto Comin and Achim Hartschuh, "Efficient Hotspot Switching in Plasmonic Nanoantennas using Phase-shaped Laser Pulses controlled by Neural Networks", Optics Express 26, 33678 (2018).
  2. Alberto Comin, Richard Ciesielski, Nicolás Coca-López, Achim Hartschuh "Phase retrieval of ultrashort laser pulses using a MIIPS algorithm"Opt. Express 24, 2505 (2016)-
  3. Richard Ciesielski, Alberto Comin, Matthias Handloser, Kevin Donkers, Giovanni Piredda, Antonio Lombardo, Andrea C. Ferrari, Achim Hartschuh "Graphene Near-Degenerate Four-Wave Mixing for Phase Characterization of Broadband Pulses in Ultrafast Microscopy"Nano Lett. 15, 4968 (2015).
  4. Torben Winzer, Richard Ciesielski, Matthias Handloser, Alberto Comin, Achim Hartschuh, Ermin Malic, "Microscopic view on the ultrafast photoluminescence from photo-excited graphene"Nano Lett. 15, 1141 (2015)
  5. Alberto Comin, Richard Ciesielski, Giovanni Piredda, Kevin Donkers, and Achim Hartschuh,"Compression of Ultrashort Laser Pulses via Gated Multiphoton Intrapulse Interference Phase Scans", J. Opt. Soc. Am. B 5, 1118-1125 (2014).