§3.1 动态散射光谱测量技术的发展 ...................................................................... 40
§3.2 光电流的功率谱密度 ...................................................................................... 42
§3.2.1 光电子统计特性 ..........................................................................................42
§3.2.2 双重随机泊松过程及其统计性质 ..............................................................43
§3.2.3 基于光拍技术的动态散射光谱测量 ..........................................................46
§3.3 动态光散射频谱测量算法 .............................................................................. 49
§3.3.1 快速傅立叶变换(FFT)...........................................................................49
§3.3.2 功率谱密度 ..................................................................................................51
§3.3.3 现代功率谱估计 ..........................................................................................51
§3.4 频谱测量法软件实现 ........................................................................................ 53
§3.5 本章小结 .......................................................................................................... 54
第四章 后向动态光散射测量系统 .............................................................................56
§4.1 待测颗粒溶液的制备 ...................................................................................... 56
§4.2 光学系统 .......................................................................................................... 57
§4.2.1 光源 ..............................................................................................................57
§4.2.2 入射光路 ......................................................................................................58
§4.2.3 散射光路 ......................................................................................................59
§4.3 信号检测装置 .................................................................................................. 59
§4.4 信号处理装置 .................................................................................................. 62
§4.4.1 数字相关器 ..................................................................................................62
§4.4.2 光子计数器 ..................................................................................................66
§4.5 本章小结 .......................................................................................................... 70
第五章 实验数据及分析 ...............................................................................................71
§5.1 实验方法 .......................................................................................................... 71
§5.2 噪声的测量 ...................................................................................................... 71
§5.2.1 光电倍增管暗计数的测量 ..........................................................................72
§5.2.2 杂质噪声的测量 ..........................................................................................72
§5.2.3 温度的变化 ..................................................................................................73
§5.2.4 杂散光的测量 ..............................................................................................74
§5.3 散射光信号的检测 .......................................................................................... 75
§5.4 实验数据及分析 .............................................................................................. 76
§5.4.1 BPCS 与TPCS 实验数据及分析 ................................................................ 76
§5.4.2 BPSD 与BPCS 实验数据及分析 ................................................................79