Company Filing History:
Years Active: 2018-2020
Title: Satoshi Ishii: Innovator in Plasmonic Metadevices
Introduction
Satoshi Ishii is a prominent inventor based in Hyogo, Japan. He has made significant contributions to the field of optical devices, holding a total of 4 patents. His work focuses on advanced technologies that enhance the manipulation of light at the micro and nano scales.
Latest Patents
One of Ishii's latest patents is for ultra-thin, planar, plasmonic metadevices. This innovative device allows for arbitrary waveform formation on a micrometer scale, independent of the incident light's polarization. By creating patterned perforations in a 30 nm-thick metal film, discrete phase shifts are achieved, resulting in a desired wavefront of cross-polarized, scattered light. Notably, the signal-to-noise ratio of these devices is at least one order of magnitude higher than current metallic nano-antenna designs. Additionally, the focal length of a lens built on this principle can be adjusted by varying the wavelength of the incident light. These embodiments can be embedded on a chip or at the end of an optical fiber.
Another significant patent is for a holey optical device. This method involves forming a plurality of holes with varying radii milled vertically into a film, creating a specific pattern. The radius of each hole determines an effective refractive index, which modifies the phase and intensity of incoming electromagnetic radiation as it propagates through the hole. This device operates equally for each linearly polarized radiation simultaneously, ensuring effective performance.
Career Highlights
Satoshi Ishii is associated with the Purdue Research Foundation, where he continues to advance his research in optical technologies. His innovative work has positioned him as a key figure in the development of plasmonic devices.
Collaborations
Ishii has collaborated with notable researchers in his field, including Alexander V Kildishev and Vladimir M Shalaev. These collaborations have further enriched his research and contributed to the advancement of optical device technology.
Conclusion
Satoshi Ishii's contributions to the field of plasmonic metadevices and optical technologies highlight his innovative spirit and dedication to advancing science. His patents reflect a commitment to enhancing the manipulation of light, paving the way for future advancements in optical applications.