Division of Materials Science, NAIST

Photonic Device Science Laboratory

Staff & Contact
Educational StaffProf. Jun Ohta
Associate Prof. Kiyotaka Sasagawa
Assistant Prof. Makito Haruta
ContactTEL: +81-743-72-6051

The Photonic Device Science Laboratory researches and develops new optical functionality-based material science and device functions for fast, flexible processing of image information that promises to play a leading role in an advanced information society and a “super aging society.” Specifically, we work on applying photonic LSI technology, which integrates semiconductor circuit technology and photonic technology, toward biological and medical field applications as shown in Fig.1. Our typical research fields include bio-medical photonic LSls and artificial vision devices.

With our research subjects crossing over various research fields, we actively pursue cooperative interdisciplinary studies. For example, we are conducting joint research on artificial vision with the Department of Ophthalmology of Osaka University Graduate School of Medicine and an ophthalmologic apparatus manufacturer and also performing joint research on bio-medical photonic LSIs with the Functional Neuroscience Laboratory of NAIST.

The majority of students in the laboratory are requested to work on research subjects involving other fields. We provide introductory seminars, study meetings, and many opportunities to interact with researchers within and outside the university so that they can pursue their research smoothly and broaden their research perspectives.

1.Bio-medical photonic materials and devices
2.Micro-chemical photonic devices
3.Advanced image sensors and their application systems

  • Fig.1 Research fields of Photonic Device Science Lab.
  • Fig.2 Retinal prosthesis device
  • Fig.3 Brain implantable micro imager

1.T. Tokuda, T. Ishizu1, W. Nattakarn, M. Haruta, T. Noda, K. Sasagawa, M. Sawan, and J. Ohta, “1 mm3-sized Optical Neural Stimulator based on CMOS Integrated Photovoltaic Power Receiver,” AIP Advances 8, 045018 (2018).
2.J. Ohta, Y. Ohta, H. Takehara, T. Noda, K. Sasagawa, T. Tokuda, M. Haruta, T. Kobayashi, Y. M. Akay, M. Akay, “Implantable Microimaging Device for Observing Brain Activities of Rodents,” Proc. IEEE 105, 158 (2017).
3.K. Sasagawa, T. Yamaguchi, M. Haruta, Y. Sunaga, H. Takehara, H. Takehara, T. Noda, T. Tokuda, and J. Ohta, “An Implantable CMOS Image Sensor with Self-Reset Pixels for Functional Brain Imaging,” IEEE Trans. Electron Dev. 63, 215 (2016).


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