전자공학회논문지D (Journal of the Korean Institute of Telematics and Electronics D)
- 제35D권8호
- /
- Pages.62-68
- /
- 1998
- /
- 1226-5845(pISSN)
폴링된 폴리머 광도파로를 이용한 cerenkov형 제2고조파 생성
Cerenkov type second harmonic genration in poled polymer waveguide
초록
Optical broadband second harmonic genration (SHG) in thin film waveguide structure was investigated. The copolymer poly(MMA-co-DR1MA) which was consiste dof PMMA (polymethylmethacrylate) and DR 1 (disperse red 1) was spin coated on the pyrex substrate. The green and near UV SHG were observe dfrom the fundamental beam even though the poled polymer has the absorption in second harmonic wavelength range. It was able to genrate SHG by cerenkov type phase matching. Th epoled polymer film thickness was decided by theoretical analysis. The green (532nm) and near UV SHG (370nm) were observed from the Q-switched Nd-YAG laser (1064nm) and Ti-sapphire laser (740nm). It was in good agreement with the experimental results.
키워드