Wataru Ishikawa

Title: Wataru Ishikawa: Innovator in Polarization Analysis

Introduction

Wataru Ishikawa is a notable inventor based in Shichigahama-machi, Japan. He has made significant contributions to the field of optical technology, particularly in the development of polarization analyzers. His innovative work has led to the creation of a unique patent that enhances the precision of optical measurements.

Latest Patents

Wataru Ishikawa holds a patent for a polarization analyzer that features a thin polarizer array and a wavelength plate array. This invention is composed of micro regions with varying optical axis directions and wavelength characteristics, achieving a high extinction ratio and low insertion loss. The design includes an array of micro periodic grooves on a substrate, with directional changes across different regions. An alternating multilayer film is formed through bias sputtering, alternating layers of high refractive index materials like Si or TaO and low refractive index materials such as SiO. This results in a photonic crystal polarizer array that, when mounted in a photodetector array, creates a compact and efficient polarization analyzer capable of high-precision measurements.

Career Highlights

Wataru Ishikawa is associated with Autocloning Technology Ltd., where he continues to innovate in the field of optical technology. His work has been instrumental in advancing the capabilities of polarization analysis, making significant strides in the efficiency and accuracy of optical measurements.

Collaborations

Wataru has collaborated with notable colleagues, including Shojiro Kawakami and Takashi Sato. Their combined expertise has contributed to the successful development of advanced optical technologies.

Conclusion

Wataru Ishikawa's contributions to the field of polarization analysis exemplify the impact of innovative thinking in optical technology. His patent and ongoing work at Autocloning Technology Ltd. highlight the importance of precision in optical measurements.