Hostname: page-component-7479d7b7d-8zxtt Total loading time: 0 Render date: 2024-07-11T09:28:00.811Z Has data issue: false hasContentIssue false
  • English
  • Français

Synthesis of a Zero-Birefringence Optical Polymer by the Birefringent Crystal DopantMethod

Published online by Cambridge University Press:  15 February 2011

Hisanori Ohkita ,
Masaki Mukoh ,
Akihiro Tagaya  and
Yasuhiro Koike
Hisanori Ohkita
Affiliation:
Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
Masaki Mukoh
Affiliation:
Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
Akihiro Tagaya
Affiliation:
ERATO Koike Photonics Polymer Project, Japan Science and Technology, K2 Town Campus E-building, 144-8, Ogura, Saiwai-ku, Kawasaki 212-0054, Japan.
Yasuhiro Koike
Affiliation:
ERATO Koike Photonics Polymer Project, Japan Science and Technology, K2 Town Campus E-building, 144-8, Ogura, Saiwai-ku, Kawasaki 212-0054, Japan.
Get access

Abstract

Birefringence induced by the orientation of polymer main chains during an injectionmolding or extrusion processing restricts the application of optical polymers to optical devices that require maintaining the polarization state of incident light. We propose the “birefringent crystal dopant method” to compensate the birefringence of polymers by homogeneous doping with an opposite birefringent needle-like crystal. Strontium carbonate (SrCO3) was selected for this method and synthesized, with particle lengths of 50-200nm and aspect ratios of 2-5. SrCO3 was doped into poly(MMA/BzMA= 78/22(wt./wt.)) film. The film was uniaxially drawn at 130°C and 4mm/min. For the first time, the positive birefringence of the drawn copolymer film at a wavelength of 633nm was compensated by doping with 0.3wt.% of SrCO3 without losing transparency and thermostability.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 771: Symposium L – Organic and Polymeric Materials and Devices , 2003 , L7.5
Copyright
Copyright © Materials Research Society 2003

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Ishigure, T., Nihei, E. and Koike, Y., Appl. Opt. 33, 4261 (1994).Google Scholar
2. Koike, Y., Ishigure, T. and Nihei, E., Lightwave, J. Technol. 13, 1475 (1995).Google Scholar
3. Bernacki, E. and Mansuripur, M., Appl. Opt. 32, 6547 (1993)Google Scholar
4. Koike, Y., Tanio, N., Nihei, E., and Ohtsuka, Y., Polym. Eng. Sci. 29, 1200 (1989)Google Scholar
5. Koike, Y., Takezawa, Y., and Ohtsuka, Y., Appl. Opt. 27, 486 (1988)Google Scholar
6. Iwata, S., Tsukahara, H., Nihei, E. and Koike, Y., Jpn. J. Appl. Phys. 35, 3896 (1996).Google Scholar
7. Iwata, S., Tsukahara, H., Nihei, E. and Koike, Y., Appl. Opt. 36, 4549 (1997).Google Scholar
8. Tagaya, A., Shuichi, S., Kawanami, E., Tsukahara, H. and Koike, Y., Appl. Opt. 40, 3677 (2001)Google Scholar
9. Tagaya, A., Shuichi, S., Kawanami, E., Tsukahara, H. and Koike, Y., Jpn. J. Appl. Phys. 40, 6117 (2001).Google Scholar