Image sensor with hybirid emission filter for in-vivo fluorescent imaging

Kiyotaka Sasagawa, Erus Rustami, Yasumi Ohta, Makito Haruta, Hironari Takehara, Hiroyuki Tashiro, Jun Ohta

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


In this paper, we report a method of fabricating an implantable image sensor equipped a bandpass hybrid filter for highly sensitive fluorescence observation. A hybrid filter that combines an interference filter and an absorption filter enables a high excitation light removal performance in an implantable image sensor that does not use a lens. In this study, a thin hybrid filter was successfully mounted on the image sensor using the transfer method by using a laser lift-off technique. The transferred filter has no crack. It was demonstrated that the prototype device exhibited high excitation light removal performance and was able to acquire a fluorescent image with high contrast.

Original languageEnglish
Pages (from-to)71-76
Number of pages6
JournalIEEJ Transactions on Sensors and Micromachines
Issue number3
Publication statusPublished - Mar 1 2021

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Electrical and Electronic Engineering


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