서지주요정보
축퇴된 4광파 혼합에 의하여 비정질 $As_2S_3$ 박막에서 발생된 위상공액파의 성질 = Phase conjugation by degenerate four-wave mixing in amorphous $As_2S_3$ film
서명 / 저자 축퇴된 4광파 혼합에 의하여 비정질 $As_2S_3$ 박막에서 발생된 위상공액파의 성질 = Phase conjugation by degenerate four-wave mixing in amorphous $As_2S_3$ film / 김연수.
발행사항 [서울 : 한국과학기술원, 1984].
Online Access 원문보기 원문인쇄

소장정보

등록번호

4102365

소장위치/청구기호

학술문화관(문화관) 보존서고

MAP 8405

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

리뷰정보

초록정보

Degenerate four-wave mixing in amorphous $As_2 S_3$ film (thickness-5um) is performed using the cw Ar-ion laser (5145Å). The probe beam intensity is made sufficiently smaller (1-10%) than the pump beam intensity and the phase conjugate wave is generated in the backward direction of the probe beam. The intensity detected has showed the typical time dependent variation which is of great interest. The intensity of the signal beam ($-10^{-2}mW$), which is the phase conjugate wave, is nearly independent of the forward pump beam intensity, but when the probe beam intensity or backward pump beam intensity is increased, the signal beam intensity increases. When the intensity of the backward pump beam is increased, the first peak in the time dependent signal beam has appeared earlier in time. In order to investigate the above time dependence of the signal beam, the diffraction equation of the extended Kogelnik"s coupled wave theory of volume grating is applied. Also the Mach-Zehnder interferometer is used to measure the time dependence of Δ(nL) in $As_2S_3$ film. When the laser power is increased, Δ(nL) changes slowly. The time dependent behaviour of Δ(nL) experimentally obtained is substituted to the diffraction which describes the phase conjugate wave generation. When Δ n.L 《 n.Δ or Δ n.L 》 n. Δ L is assumed, the diffraction efficiency η(t) showed the behaviour which qualitatively agrees with the experimental data. Also in the investigation of the transmitted power through the $As_2S_3$ film, the change Δ L in the thickness has appeared increasingly dominent as laser beam intensity is increased. From this experiment, it is reasonably concluded that when the light intensity is high, Δ n.L 《 n. Δ L and in the low light intensity, Δ n.L 》 n. Δ L.

서지기타정보

서지기타정보
청구기호 {MAP 8405
형태사항 [iii], 78 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Yeon-Soo Kim
지도교수의 한글표기 : 이상수
지도교수의 영문표기 : Sang-Soo Lee
학위논문 학위논문(석사) - 한국과학기술원 : 물리학과,
서지주기 참고문헌 : p. 70-76
주제 Thin films.
Arsenic sulphide.
Optical phase conjugation.
비정질. --과학기술용어시소러스
박막. --과학기술용어시소러스
황화비소. --과학기술용어시소러스
위상 공역. --과학기술용어시소러스
Amorphous substances.
QR CODE qr code