| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 가을 (10/09 ~ 10/10, 일산킨텍스) |
| 권호 |
33권 2호 |
| 발표분야 |
분자전자소재 및 소자기술의 현황(분자전자 부문위원회) |
| 제목 |
Nematic liquid crystals for polarization grating and lasing applications |
| 초록 |
Liquid crystal belongs to an important class of optical materials owing to the intrinsic property of order and mobility. The nematic liquid crystals can be doped with photo-active molecules to achieve an ordering required for a photonic application. When doped with an azo-benzene moiety, a polarization grating can be inscribed holographically via photo-isomerization process. The holographic grating incorporating the orbital angular momentum of light will be presented. On the other hand, when doped with a chiral agent and laser dye, a formation of chiral nematic liquid crystal structure takes place. Two orthogonal modes of in-phase and out-phase polarization standing wave allows for a lasing operation near the bandgap edges of reflection spectra. A one-dimensional spatial tuning of the laser wavelength will be presented. |
| 저자 |
우정원 |
| 소속 |
이화여자대 |
| 키워드 |
Nematic; Liquid crystal; lasing
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| E-Mail |
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