国际玻璃协会(International Commissioa on Glass)成立于1933年,它是国际玻璃学术界和工业界的联合组织,共有30余个成员国,我国亦是成员国之一。国际玻璃大会(International Congress on Glass)是由国际玻璃协会组织的世界上最有影响...国际玻璃协会(International Commissioa on Glass)成立于1933年,它是国际玻璃学术界和工业界的联合组织,共有30余个成员国,我国亦是成员国之一。国际玻璃大会(International Congress on Glass)是由国际玻璃协会组织的世界上最有影响的连届会议。它具有明显的学术、技术和生产相结合的特征。每届会议都将玻璃生产技术和制造工艺放在重要位置,突出了玻璃熔炼和热处理的模拟、玻璃窑炉、耐火材料、玻璃熔制技术、玻璃成品的质量检验和控制、节能和环境保护等。展开更多
To find new chalcogenide glass possessing larger second-order non-linearity, glasses with compositions Ge-Ga-X-S (X=P, As, Sb) were prepared via melt quenching technique. The amorphous nature of all the compositions o...To find new chalcogenide glass possessing larger second-order non-linearity, glasses with compositions Ge-Ga-X-S (X=P, As, Sb) were prepared via melt quenching technique. The amorphous nature of all the compositions of the as-quenched glasses was confirmed by X-ray diffraction(XRD). The glassy thermal properties of the as-quenched glasses were established by differential thermal analyses(DTA). The glass structure was studied by RAMAN spectra and the second order nonlinearity was studied by the Maker Fringe method after the electron beam poling(EBP) and electric/temperature field poling(ETFP) respectively. Additions of various pnicogen atoms into the Ge-Ga-S glasses lead to the difference in the second order nonlinearity of the glass. It's found that glasses with different structures result in different SHG intensities, and even more, a large second order nonlinear susceptibility X(2) of about 9 pm/V was obtained for all the glasses and the reasons for such a large susceptibility were analyzed.展开更多
Ge-Ga-Ag-S chalcogenide glasses with the composition Ge30Ga3Ag4S63 were obtained by the conventional melt-quenching method. According to the visible-infrared and infrared spectra, Ge30Ga3Ag4S63 chalcogenide glass poss...Ge-Ga-Ag-S chalcogenide glasses with the composition Ge30Ga3Ag4S63 were obtained by the conventional melt-quenching method. According to the visible-infrared and infrared spectra, Ge30Ga3Ag4S63 chalcogenide glass possesses wide transmittance window from 510 nm in the visible region up to 11.5 μm in the infrared region. And the present glass has better glass-forming ability (the difference between glass transition temperature and the peak temperature of crystallization is larger than 100 ℃). Utilizing maker-fringe technique, a prominent second-harmonic generation was observed in Ge30Ga3Ag4S63 chalcogenide glass after irradiated by an electron beam (Accelerating voltage: 25 kV; Irradiating current: 15 nA; Irradiating time: 10 min). And the mechanism of second-harmonic generation in the Ge-Ga-Ag-S system glasses was discussed.展开更多
文摘国际玻璃协会(International Commissioa on Glass)成立于1933年,它是国际玻璃学术界和工业界的联合组织,共有30余个成员国,我国亦是成员国之一。国际玻璃大会(International Congress on Glass)是由国际玻璃协会组织的世界上最有影响的连届会议。它具有明显的学术、技术和生产相结合的特征。每届会议都将玻璃生产技术和制造工艺放在重要位置,突出了玻璃熔炼和热处理的模拟、玻璃窑炉、耐火材料、玻璃熔制技术、玻璃成品的质量检验和控制、节能和环境保护等。
基金Project(50125205) supported by the National Natural Science Foundation of China
文摘To find new chalcogenide glass possessing larger second-order non-linearity, glasses with compositions Ge-Ga-X-S (X=P, As, Sb) were prepared via melt quenching technique. The amorphous nature of all the compositions of the as-quenched glasses was confirmed by X-ray diffraction(XRD). The glassy thermal properties of the as-quenched glasses were established by differential thermal analyses(DTA). The glass structure was studied by RAMAN spectra and the second order nonlinearity was studied by the Maker Fringe method after the electron beam poling(EBP) and electric/temperature field poling(ETFP) respectively. Additions of various pnicogen atoms into the Ge-Ga-S glasses lead to the difference in the second order nonlinearity of the glass. It's found that glasses with different structures result in different SHG intensities, and even more, a large second order nonlinear susceptibility X(2) of about 9 pm/V was obtained for all the glasses and the reasons for such a large susceptibility were analyzed.
基金Project (50125205) supported by the National Natural Science Foundation of China Project (SYSJJ2004-14) by Key Laboratory of Silicate Materials Science and Engineering (Wuhan University of Technology) Ministry of Education
文摘Ge-Ga-Ag-S chalcogenide glasses with the composition Ge30Ga3Ag4S63 were obtained by the conventional melt-quenching method. According to the visible-infrared and infrared spectra, Ge30Ga3Ag4S63 chalcogenide glass possesses wide transmittance window from 510 nm in the visible region up to 11.5 μm in the infrared region. And the present glass has better glass-forming ability (the difference between glass transition temperature and the peak temperature of crystallization is larger than 100 ℃). Utilizing maker-fringe technique, a prominent second-harmonic generation was observed in Ge30Ga3Ag4S63 chalcogenide glass after irradiated by an electron beam (Accelerating voltage: 25 kV; Irradiating current: 15 nA; Irradiating time: 10 min). And the mechanism of second-harmonic generation in the Ge-Ga-Ag-S system glasses was discussed.
