서지주요정보
$BaTiO_3$ 단결정에서 self-pumping에 의한 위상 공액파 발생 = Generation of self-pumped phase conjugatewave in $BaTiO_3$ single crystal
서명 / 저자 $BaTiO_3$ 단결정에서 self-pumping에 의한 위상 공액파 발생 = Generation of self-pumped phase conjugatewave in $BaTiO_3$ single crystal / 이장두.
저자명 이장두 ; Lee, Jang-Doo
발행사항 [대전 : 한국과학기술원, 1990].
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소장정보

등록번호

8000530

소장위치/청구기호

학술문화관(문화관) 보존서고

MAP 9020

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초록정보

Self-pumped phase conjugation (SPPC) which can generate phase conjugate wave (PCW) by only one incident wave is investigated in $BaTiO_3$ single crystal. The optic axis of $BaTiO_3$ uniaxial crystal is determined through the conoscope figure formed by a convergent laser beam between polarizers. By two wave energy coupling experiment hole-electron competition rate R is 0.8 and effective density of photo-refractive charge carriers N$_{pr}$ is $1.12\times10^{22}m^{-3}$. Asymmetric self-defocussing effect is observed and interaction regions where DFWM occurs are observed in the crystal. We investigate variance of interaction zones according to incident height. Varying the angle of incidence, we choose the situation that only two interaction zones take a place, and under that situation we measure reflectivity, and then it compared with theory. SPPCW is found as its maximum reflectivity of 48% and having good ability of image reconstruction by experiment. Relations between response time of PCW and incident intensity is investigated such that $τ=36I^{-0.89}$.

서지기타정보

서지기타정보
청구기호 {MAP 9020
형태사항 [ii], 70 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Jang-Doo Lee
지도교수의 한글표기 : 이상수
지도교수의 영문표기 : Sang-Soo Lee
학위논문 학위논문(석사) - 한국과학기술원 : 물리학과,
서지주기 참고문헌 : p. 68-70
주제 Refraction.
Nonlinear optics.
위상 공역. --과학기술용어시소러스
광 굴절. --과학기술용어시소러스
비선형 광학. --과학기술용어시소러스
Optical phase conjugation.
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