서지주요정보
비정질 $As_2S_3$ 박막에서 축퇴 4광파 혼합으로 발생된 위상공액파의 분석 = Phase conjugation via degenerate four wave mixing in amorphous $As_2S_3$ thin film
서명 / 저자 비정질 $As_2S_3$ 박막에서 축퇴 4광파 혼합으로 발생된 위상공액파의 분석 = Phase conjugation via degenerate four wave mixing in amorphous $As_2S_3$ thin film / 곽종훈.
저자명 곽종훈 ; Kwak, Jong-Hoon
발행사항 [서울 : 한국과학기술원, 1985].
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4103324

소장위치/청구기호

학술문화관(문화관) 보존서고

MAP 8502

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초록정보

Aresenic trisulfide($As_2S_3$) thin film is deposited in vacuum by thermal evaporation process and the conjugate wave generated in the thin film by degenerate four wave mixing is investigated. The film has ideal amorphous structure and has at room temperature the capacity of recoding fringe of several thousand line pairs/mm. The phase microscopic observations reveal the recorded fringes, and prove its high hologram recording capacity. The phase conjugate generated wave by the degenerate four wave mixing has many important properties, particulary in the time domain. The relevant kinetics is established by taking account of the three level energy structure of the solid. Electrons are excited by the interaction with laser photon from $Ar^+$ ion laser and trapped in the intermediate level. Those trapped electrons are evacuated by the heating the specimen up to 170℃. Thus the $As_2S_3$ film can be promising writing and erazing recorder. When the film is irradiated with laser beam, the writing and erazing process can be shortened, so that the system can become to a nearly real-time image processor. From the rate equations set up from the energy band structure, the time dependent behavior of the intensity is numerically clarified and good agreement between the theoretical values and experimental data are confirmed. In the present experiment, the phase conjugate wave is found indeed that it is the diffracted wave of the backward beam $A_f$ and the prove beam $A_p$, and from the attenuation characteristics of the conjugate wave when A$_f$ and $A_p$ are blocked, the erazing kinetics under laser beam illumination is established. Present investigation has proven many potential applications of $As_2S_3$ thin film. Further investigation is worth being carried out and in continued.

서지기타정보

서지기타정보
청구기호 {MAP 8502
형태사항 [iv], 115 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Jong-Hoon Kwak
지도교수의 한글표기 : 이상수
지도교수의 영문표기 : Sang-Soo Lee
학위논문 학위논문(석사) - 한국과학기술원 : 물리학과,
서지주기 참고문헌 : p. 113-115
주제 Amorphous substances.
Thin films.
Arsenic sulphide.
위상 공역. --과학기술용어시소러스
비정질. --과학기술용어시소러스
박막. --과학기술용어시소러스
황화비소. --과학기술용어시소러스
축퇴. --과학기술용어시소러스
Optical phase conjugation
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