We welcome talented postdoctoral researchers in the field of optics, especially optical sensing and fiber optics, from around the world. However, at present, we accept only those who have their own funding or who are actively applying for external fellowships. As we receive tens of e-mails which just inquire whether the postdoc position is available or not, we have decided not to respond to such e-mails without his/her funding information. One example of the external fellowships includes the JSPS Postdoctoral Fellowships program, which is provided by the JSPS (Japan Society for the Promotion of Science) for international postdoctoral researchers. We are willing to support researchers who plan to apply for this program and join us. If you are interested in this position, please contact Prof. Mizuno along with your academic CV. Note that your request may be declined depending on the situation because this program is highly competitive. If accepted, you will enjoy a research environment where you can devote yourself to your own work.