SPIE Digital Library Get updates from SPIE Newsroom
  • Newsroom Home
  • Astronomy
  • Biomedical Optics & Medical Imaging
  • Defense & Security
  • Electronic Imaging & Signal Processing
  • Illumination & Displays
  • Lasers & Sources
  • Micro/Nano Lithography
  • Nanotechnology
  • Optical Design & Engineering
  • Optoelectronics & Communications
  • Remote Sensing
  • Sensing & Measurement
  • Solar & Alternative Energy
  • Sign up for Newsroom E-Alerts
  • Information for:
    Advertisers
SPIE Defense + Commercial Sensing 2017 | Call for Papers

Journal of Medical Imaging | Learn more

SPIE PRESS




Print PageEmail Page

Lasers & Sources

Martin Wegener plenary talk: Three-dimensional Metamaterials Made By Direct Laser Writing

Presented at SPIE Photonics West 2013

13 February 2013, SPIE Newsroom. DOI: 10.1117/2.3201302.12

Martin Wegener, Karlsruhe Institute of TechnologyThree-dimensional (3D) direct laser writing (DLW) has become a commercially available workhorse and can be seen as the 3D counterpart of planar electron-beam lithography. However, DLW was previously subject to seemingly fundamental limitations regarding (i) spatial resolution due to the Abbe diffraction barrier, (ii) accessible sample heights due to finite microscope-lens working distances, and (iii) writing speed. In his talk, "Three-dimensional Metamaterials Made By Direct Laser Writing," Martin Wegener gives an introduction and presents the state-of-the-art. (i) Stimulated-emission-depletion (STED) 3D DLW has recently broken the diffraction barrier. For example, this has enabled the first 3D visible-frequency polarization-independent invisibility cloak and the first visible-frequency 3D complete-photonic-band-gap material. (ii) 3D "dip-in" DLW has enabled the first 3D pentamode mechanical metamaterial.


Wegener is a professor at the Karlsruhe Institute of Technology (KIT) (Germany). In 2007, he co-founded the start-up company Nanoscribe GmbH.