TY - GEN
T1 - Photonics polymers for fiber and display
AU - Koike, Yasuhiro
N1 - Funding Information:
1.2 Seeing the Essence of the Problem [1] While carefully reviewing and organizing past data thought to be unsuccessful, we began to see the true nature of light-scattering loss. We began to see how our former method of forming a refractive index distribution according to differences in reactivity would form an extreme polymer composition distribution in the generated copolymer. It became clear that the more we increased the refractive index distribution by increasing the difference in reactivity, the larger the inhomogeneous structure formed within the polymer. This large inhomogeneous structure reached more than several hundred Å, and when I applied it to Debye’s light-scattering theory, I discovered it to be the cause of a very large scattering loss exceeding several hundred dB/km. This realization was the culmination of many long years of research and made me recognize that the fiber would theoretically not become transparent with processing methods that rely on monomer reactivity. I decided to reconsider the problem from the beginning. Finally then, I was able to clearly visualize the cause of excessive scattering. It did not take much time for me to come up with a new idea for a low-loss fiber. We conducted an experiment based on the completely new idea of forming a graded index using molecular size. April 1st, 1990 is still a memorable day for me. We produced an excellent transparent GI POF preform. It was the moment I emerged from a 10-year-long tunnel for an answer to Yasuhiro Koike received his B.S., M.S. and Ph.D. from Keio University in 1977, 1979 and 1982, respectively. He was a Visiting Researcher at AT&T Bell Laboratories from 1989 to 1990. He has been Professor at Keio University since 1997. He is regarded as the inventor of Graded-Index Plastic Optical Fiber, Highly Scattered Optical Transmission (HSOT) polymer and Zero Birefringence Polymer. He was the project leader of ERATO, ERATO/SORST of JST, FIRST program which was funded by the Cabinet Office of Japan, etc. He has been the General Chair of International POF Conference since 1992. He has been conferred as an Honorary Doctorate of Eindhoven University of Technology, and an affiliate professor of University of Washington. He is a recipient of International Engineering and Technology Award of the Society of Plastics Engineers (SPE), the Fujiwara Award, and Medal with Purple Ribbon awarded by Emperor of Japan, SID Special Recognition Award, etc.
Publisher Copyright:
© 2017 The Japan Society of Applied Physics.
PY - 2017/11/19
Y1 - 2017/11/19
N2 - We have proposed and demonstrated the high-speed graded-index plastic optical fiber (GI POF) which will be 'capillary of light' for consumers in 8K era. The zero-birefringent and super-birefringent polymer films are introduced for realizing real color display in LCD and OLED.
AB - We have proposed and demonstrated the high-speed graded-index plastic optical fiber (GI POF) which will be 'capillary of light' for consumers in 8K era. The zero-birefringent and super-birefringent polymer films are introduced for realizing real color display in LCD and OLED.
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U2 - 10.23919/MOC.2017.8244473
DO - 10.23919/MOC.2017.8244473
M3 - Conference contribution
AN - SCOPUS:85045855802
T3 - 22nd Microoptics Conference, MOC 2017
SP - 10
EP - 11
BT - 22nd Microoptics Conference, MOC 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 22nd Microoptics Conference, MOC 2017
Y2 - 19 November 2017 through 22 November 2017
ER -