【摘 要】
：
Upconversion fluorescence emission of Er3+-doped oxyfluorosilicate glass excited at 975 mn is experimen-tally investigated. The results reveal that the intense
【机 构】
：
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
论文部分内容阅读
Upconversion fluorescence emission of Er3+-doped oxyfluorosilicate glass excited at 975 mn is experimen-tally investigated. The results reveal that the intense green and red emission, and weak blue emissioncentered at 525, 543, 655, and 410 nm, respectively. A two-photon upconversion process is assigned to thegreen and red emission while a three-photon process is responsible for blue upconversion. The possibleupconversion mechanisms are discussed based on excited state absorption and energy transfer betweenexcited Er3+ ions. The intense upconversion fluorescence of Er3+-doped lead oxyfluorosilicate glass maybe a potentially useful material for developing upconversion optical devices.
其他文献
A prototype 1.55-μm Si-based micro-opto-electro-mechanical-systems (MOEMS) tunable filter is fabricated, employing surface micromachining technology. Full-wid
Protein microarray technology has recently emerged as a powerful tool for biomedical research. Before automatic analysis the protein microarray images, protein
We have proposed and demonstrated a double-pass ytterbium-doped fiber amplifier using an optical circulator and a fiber Bragg grating as reflector. When the si
黑如木炭的食物,为何成为他餐桌上的美味佳肴?92岁高龄的他精神抖擞、行动自如,这是否和这些漆黑的食物相关?家住南京的黄万金老人已92岁高龄,但操持起厨房的事来,依然非常自
如果有一块神奇的想象飞毯,坐上它可以去到任何想去的地方,那该多好。还好我们拥有想象的翅膀。每个孩子的心中都有一个散发魔力的童话世界,因为有了童话,我们可以插着想象的
A lamp pumped CW Nd:YAG laser is presented in this paper for the requirement of industrial application.The main factors, which affect output power and beam qual
We report on the characterization of a diode-side-pumped Nd:YAG rod laser operating at high CW output power. A four-fold pump configuration is designed and the
Ray-tracing method is used to simulate the distribution of absorption in crystal rod for different sidepumping configuration. The distribution of pumping power
Ablation experiments with femtosecond (fs) laser pulse (pulse duration 37 fs, wavelength 800 nm) on organic polymers have been performed in air. The ablation th
A novel designed method for tunable wavelength microcavity organic electroluminescent diode (MOLED)based on the birefringence of liquid crystal was presented. B