Two-photon direct laser writing of ultracompact multi-lens objectives

  title={Two-photon direct laser writing of ultracompact multi-lens objectives},
  author={Timo Gissibl and Simon Thiele and Alois M Herkommer and Harald Giessen},
  journal={Nature Photonics},
Femtosecond two-photon direct laser writing is used to create 100-µm-scale high-performance multi-lens objectives. 
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