2016/01/19 第9期

1.Compact polarization splitter based on silicon grating-assisted couplers

简评：研制紧凑型PBS。

2*.Mapping transverse velocity of particles in capillary vessels by time-varying laser speckle through perturbation analyses

简评：随机扰动模型，建立横向血流速度图。从FFOCT想到的横向速度图的方法。

The data processing includes four steps:

• (1) Utilizing differential operation to remove DC signals;
• (2) square operation (which is equivalent to a full-wave rectifier);
• (3) the short-time average of It to eliminate the term bt2 from the envelope;
• (4) low-pass filtering to separate the envelope from high frequency signals caused by random phases.

3.Lens-free spectral light-field fusion microscopy for contrast- and resolution-enhanced imaging of biological specimens

简评：lens free是好事？光源频率随时间变化。

4.Effect of spherical aberration on laser beam self-focusing in the atmosphere

简评：不同环境下的球差的影响。

5.Three-dimensional imaging through scattering media using three-dimensionally coded pattern projection

简评：用coded pattern当媒介(medium)进行体扫描，获取三维信息。类似手段还有：

• 条纹投影(souce pattern)
• 结构照明(source pattern varing)
• 散射媒介(coded pattern on the scattering medium)