Cerenkov type second harmonic genration in poled polymer waveguide

폴링된 폴리머 광도파로를 이용한 cerenkov형 제2고조파 생성

  • 김응수 (부산외국어대학교 전자공학과) ;
  • 조원주 (LG 반도체 ULSI연구소)
  • Published : 1998.08.01

Abstract

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.

Keywords