中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共5条，第1-5条

帮助

条数/页：排序方式：
	The optical properties of Dy3+-doped NaY(MoO4)(2) crystal 期刊论文 OAI收割 Journal of Luminescence, 2007, 卷号: 126, 期号: 1, 页码: 63-67 X. A. Lu; Z. Y. You; H. F. Li; Z. J. Zhu; G. H. Jia; B. C. Wu; C. Y. Tu 收藏 \| 浏览/下载：13/0 \| 提交时间：2013/04/01 optical material the Judd-Ofelt theory spectroscopic character rare-earth ions branching ratios energy-levels laser glasses tm3
	The optical properties of er3+ doped nay(moo4)(2) crystal for laser applications around 1.5 mu m 期刊论文 iSwitch采集 Journal of alloys and compounds, 2006, 卷号: 426, 期号: 1-2, 页码: 352-356 作者: Lu, Xiuai; You, Zhenyu; Li, Jianfu; Zhu, Zhaojie; Jia, Guohua 收藏 \| 浏览/下载：38/0 \| 提交时间：2019/05/10 Optical material The judd-ofelt theory Spectroscopic characteristics
	Energy upconversion in erbium doped oxyfluoride tellurite glass (EI CONFERENCE) 会议论文 OAI收割 ICO20: Materials and Nanostructures, August 21, 2005 - August 26, 2005, Changchun, China 作者: Chen B.; Xie Y.; Wang X.; Wang X.; Wang X. 收藏 \| 浏览/下载：16/0 \| 提交时间：2013/03/25 In this article we have investigated energy upconversion process in erbium doped oxyfuoride tellurite glasses exciated with 980 nm diode laser. The glasses used in measurements are with a mol% composition of 70TeO2-9PbF2-190AlF3-10BaF2-1Er2O3. The s intensity parameters the radiative rates the branching ratios and the fluorescence lifetimes were calculated based upon the Judd-Ofelt theory and the experimental absorption spectrum. Under 980 nm excitation efficient 530 544 and 665 nm upconversion emission are due to two-photon absorption processes.
	Spectroscopic investigations of Er3+ doped Bi2O 3 -B2O3 -SiO2 glass (EI CONFERENCE) 会议论文 OAI收割 ICO20: Materials and Nanostructures, August 21, 2005 - August 26, 2005, Changchun, China 作者: Chen B.; Wang X.; Wang X.; Wang X.; Wang C. 收藏 \| 浏览/下载：74/0 \| 提交时间：2013/03/25 From the optical absorption measurements the Judd-Ofelt parameters were computed using Judd-Ofelt theory. According to the radiative lifetime obtained from the Judd-Ofelt parameters and the measured lifetime the 1.5m quantum efficiency was calculated. The quenching effect of OH upon the lifetime of 1.5m emission was investigated. From the absorption sideband measurement of glass host the value of optical band gap was estimated. The McCumber theory was used to calculate the stimulated emission cross-section and in approximate agreement with experimental one if the emission spectrum could be obtained accurately. The gain coefficient spectra were computed.
	A simple method to estimate the radiative lifetime of 4I 13/2&rarr4I15/2 transition of Er3+ in transparent materials (EI CONFERENCE) 会议论文 OAI收割 19th Congress of the International Commisssion for Optics Optics for the Quality of Life, August 25, 2002 - August 30, 2002, Firenze, Italy Chen B. J.; Righini G. C.; Pelli S.; Brenci M. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 In this paper based on the Judd-Ofelt theory a simple route for calculating the radiative lifetime of transition 4I 13/2&rarr4I15/2 of Er3+-doped transparent materials is proposed. A mathematical representation of the radiative lifetime is given as a function of absorption band of 4I13/2&rarr4I15/2 transition.