서지주요정보
三重放電 TEA $CO_2$레이저 發振器와 增幅器의 出力特性에 관한 硏究 = Output characteristics of the triple discharge TEA $CO_2$laser oscillator and amplifier
서명 / 저자 三重放電 TEA $CO_2$레이저 發振器와 增幅器의 出力特性에 관한 硏究 = Output characteristics of the triple discharge TEA $CO_2$laser oscillator and amplifier / 이인원.
저자명 이인원 ; Lee, In-Won
발행사항 [서울 : 한국과학기술원, 1981].
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소장정보

등록번호

4001530

소장위치/청구기호

학술문화관(문화관) 보존서고

DAP 8105

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Rate equations based on the simplified four level model are derived, and the results of the computer simulation satisfactorily explain the pulse forming mechanism in a TEA $CO_2$ laser. To understand the glow-arc transition in the high pressure gas discharges, neutral dynamics is employed and the electrode phenomena are analysed. Parameters and detailed informations are described for the design and construction of the laser oscillator system. In a pearson-Lamberton type TEA $CO_2$ laser, the density of electrons from wire discharge is limited because increasing the value of the coupling capacitor causes non-uniformity in preionization discharge itself and results in arc formation in the main discharge. To solve this problem, triple discharge system with the second set of trigger wires are tried in this experiment, and distinctly improved excitation is obtained compared with that of the double discharge system. For the same gas composition, the optimum operation voltage of the triple discharge system is higher than that of the double discharge system because the more intense preionization of the triple discharge suppresses the glow-to-arc transition under the higher energy input. More energetic preionization of the triple discharge system allows uniform discharge in the gas mixture containing less helium, and stable operation of the laser is observed even for the mixture $CO_2:N_2:He=1:1:1$. The maximum output energy of the triple discharge laser is 400mJ at the helium concentration of 47%, and this gives the output energy density of 25 J/l. The performance characteristics of the triple discharge TEA $CO_2$ amplifier is investigated, and the small signal gain of 2.0% is obtained.

서지기타정보

서지기타정보
청구기호 {DAP 8105
형태사항 iv, 144 p. : 삽도, 사진 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : In-Won Lee
지도교수의 한글표기 : 이상수
지도교수의 영문표기 : Sang-Soo Lee
학위논문 학위논문(박사) - 한국과학기술원 : 물리학과,
서지주기 참고문헌 : p. 136-143
주제 Glow discharges.
Light amplifiers.
탄산 가스 레이저. --과학기술용어시소러스
레이저 출력. --과학기술용어시소러스
레이저 발진. --과학기술용어시소러스
증폭기. --과학기술용어시소러스
Carbon dioxide lasers.
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