排序方式: 共有32条查询结果,搜索用时 13 毫秒
11.
12.
13.
In this Letter,a new approach of optical tape for high capacity multilayer data storage is proposed.We show that a length of 5 cm and width of 2 cm of soft and transparent optical tape can be used for two-photon three-dimensional bit data storage.We successfully demonstrate writing and reading of six layers of data storage with a transverse bit separation of 2μm and an axial separation of 2.5μm in a tetraphenylethylene-doped photobleaching polymer.The fluorescence intensity is insensitive to the storage depth of the photopolymer matrix.Thus,the optical tape that we put forward in the experiment can help people realize true large data storage in the future,like magnetic tape.This method significantly paves a novel way for solving big data storage problems. 相似文献
14.
不同热处理的GeTe薄膜的光学参数测量 总被引:2,自引:0,他引:2
运用一种新的测量单面镀膜膜层光学参数的方法,对不同热处理的GeTe半导体薄膜样品的光学参数进行了测量,准确地获得了被测薄膜材料的光学参数,并采用椭圆偏振光谱测量作比较研究。经此为基础,对用椭偏仪测得的数据进行拟合计算,得出了样品材料在250~830nm波段范围的复折射曲线。 相似文献
15.
Improvement of Three-Dimensional Resolution in Optical Data Storage by Combination of Two Annular Binary Phase Filters 下载免费PDF全文
We present an improved confocal readout system to achieve three-dimensional superresolution. This improved system is based on a combination of two different annular binary phase filters, the one designed for increasing the transverse superresolution and the other for achieving axial superresolution. By adjusting the pupil parameters, each pupil can be well designed. The simulation results show that with this improved system, the area of the central lobe of the three-dimensional point spread function of the read optics is greatly reduced. Moreover, the side-lobes are extinguished. 相似文献
16.
用电子俘获材料实现实时图像微分 总被引:4,自引:1,他引:3
根据数学形态学的基本思想,采用离焦的卷积光学系统,利用电子俘获材料的饱和特性和图像减法功能实现图像微分,这一方案具有清晰度高、实时性,全并行性的优点,取阀和减法运算都用一片电子俘获薄膜来实现。 相似文献
17.
用单块电子俘获器件,以一种新方法一时域编码方法,实现了所有16种布尔逻辑运算.根据电子俘获材料的存贮和可擦除特性,按特定顺序进行一系列单元操作,可测到每种布尔逻辑函数,同一般光学逻辑处理器相比,这种处理器具有新的自由度一时域自由度,文末给出了实验结果. 相似文献
18.
19.
AgInSbTe薄膜的短波长记录性能分析 总被引:1,自引:0,他引:1
采用自制的装置研究了Ag5In5Sb47Te33薄膜的静态记录性能与记录激光的功率和脉冲宽度的关系,并对其记录畴形貌特点进行了直接观察。结果表明只有记录激光的功率和脉冲宽度在一定范围之内才能起到信息记录的作用,所得的记录畴形貌十分清晰,基本为非晶态Ag5In5Sb47Te33;小于该范围的激光能量不能使材料结构发生较大的变化,所得的记录畴形貌模糊,反射率对比度低于2%;大于该范围所得的记录畴由烧蚀区和其周围的非晶态Ag5In5Sb47Te33组成。另外,得到了记录激光功率为12mW、脉冲宽度为90ns的Ag5In5Sb47Te33薄膜的短波长最佳记录条件,其记录畴的反射率对比度为22%,直径为380nm-400nm。 相似文献
20.
测量了掺Er3+/Yb3+氟铝玻璃的吸收谱,在0.98μm附近,比掺Er3+氟铝玻璃具有明显的吸收增强.用Judd-Ofelt理论得出了其光谱参量Ωλ(λ=2,4,6),并计算了有关能级的声子跃迁速率.理论分析及实验结果表明,该材料适合于频率上转换激光的产生 相似文献