@article{CTT100800368,
  author = {T. Tokuda and T. Ishizu and N. Wuthibenjaphonchai and M. Haruta and T. Noda and K. Sasagawa and M. Sawan and J. Ohta},
  title = {1 mm3-sized Optical Neural Stimulator based on CMOS Integrated Photovoltaic Power Receiver},
  journal = {AIP Advances},
  year = 2018,
}

@article{CTT100800369,
  author = {W. Nattakarn and T. Ishizu and M. Haruta and T. Noda and K. Sasagawa and T. Tokuda and M. Sawan and J. Ohta},
  title = {CMOS-based Optical Energy Harvesting Circuit for Biomedical and Internet of Things Devices},
  journal = {Jpn. J. Appl. Phys.},
  year = 2018,
}