2023

• Singer, Julian A. and Stramm, Till and Fasel, Jens and Schween, Oliver and Gelaeschus, Anton and Bahr, Andreas and Kuhl, Matthias
  Flexible Polymer Optical Waveguides for Integrated Optogenetic Brain Implants
  In Tagungsband "2023 IEEE 36th International Conference on Micro Electro Mechanical Systems Conference (MEMS)", 2023
  2023 IEEE 36th International Conference on Micro Electro Mechanical Systems Conference (MEMS)
  Abstract:
  This paper presents a manufacturing process for flexible optical waveguides made of biocompatible polydimethylsiloxane (PDMS) to be attached to future optogenetic implants. Based on a complementary metal-oxide-semiconductor (CMOS) application-specific integrated circuit (ASIC), the system uses integrated single photon avalanche diodes (SPADs) as sensors for fluorescence imaging (FI) and post-CMOS micro light-emitting diodes (µLEDs) for stimulation [1]. Attaching fibers to SPADs and µLEDs to collect and distribute light from and to deeper brain layers can unfold previously unachieved medical applications. Two technologies for biocompatible waveguide manufacturing are presented: thin-film and molding. Such a combination of integrated bidirectional implantable ASICs with custom waveguide manufacturing is not limited to medical scenarios but opens up a broad field of applications.
  BibTeX:
  @inproceedings{mems23singer,
  author = {Singer and Julian A. and Stramm and Till and Fasel and Jens and Schween and Oliver and Gelaeschus and Anton and Bahr and Andreas and Kuhl and Matthias},
  title = {{F}lexible {P}olymer {O}ptical {W}aveguides for {I}ntegrated {O}ptogenetic {B}rain {I}mplants},
  year = {2023},
  booktitle = {2023 IEEE 36th International Conference on Micro Electro Mechanical Systems Conference (MEMS)},
  note = {2023 IEEE 36th International Conference on Micro Electro Mechanical Systems Conference (MEMS)} }
  [Abstract] [BibTeX]
  
  

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