Author Affiliations
Abstract
1 State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100, China
2 Key Laboratory of High Power Laser Materials, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
3 College of Physics and State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
Praseodymium-ion-doped gain materials have the superiority of lasing at various visible wavelengths directly. Simple and compact visible lasers are booming with the development of blue laser diodes in recent years. In this Letter, we demonstrate the watt-level red laser with a single blue laser diode and Pr:YLiF4 crystal. On this basis, the passively Q-switched pulse lasers are obtained with monolayer graphene and Co:ZnO thin film as the Q-switchers in the visible range.
140.3480 Lasers, diode-pumped 140.3540 Lasers, Q-switched 140.7300 Visible lasers Chinese Optics Letters
2019, 17(7): 071402
1 山东大学物理与微电子学院, 济南 250100
2 复旦大学光科学与工程系, 上海 200433
研究了制备态和退火态Zn1-xCoxO非匀质磁性半导体的极向克尔谱, 发现通过调制样品成分和退火处理, 可以大幅度调制极向克尔谱。退火后样品的磁光克尔旋转角得到显著增强, 克尔角最大值达到0.72°, 这是由于退火后样品变成了Co颗粒和Zn1-xCoxO磁性半导体的纳米复合体系。
磁光克尔效应 磁性半导体 纳米复合体系
