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A high precision inspection method based on image mosaic was proposed for the final optics inspection in an Inertial Confinement Fusion(ICF).The image mosaic method contains image registration stage and image fusion stage.In the image registration stage,a registration method based on feature matching of local damaged area was used to overcome the exposure difference between the subimages and the lack of image information,and the moving information in the inspection system was used in image matching to improve the inspection precision and inspection efficiency.In the image fusion stage,the Poisson image fusion was adopted to eliminate the "stitching line" caused by an exposure difference and to implement the seamless mosaic.The images of final optics inspected by Final Optics Online Inspection(FOOI)was compared with the proposed method and Scale Invariant FeatureTransform(SIFT)method,and the results show that the proposed method is superior to SIFT method.The 4×4mosaic image shows that the inspection resolution of the FOOI device in the ICF has been improved significantly by proposed method.

The dynamic process of light-induced agglomeration of carbon nanotubes (CNTs), C60 and Escherichia coli (E.coli) in aqueous solutions is demonstrated using an optical tweezers system. Based on the results, the diameter of the agglomerated region and the agglomeration rate increase with the increasing laser power. After the saturation-stable period, CNTs diffuse completely, C60 clusters only diffuse partially, and E. coli never diffuses in the agglomeration region. Theoretical analyses show that the molecular polarization and thermal diffusion of particles play crucial roles in the diffusion process. The results indicate the possibility of using light to aggregate and sort nanoparticles.

The exact bright, dark and grey spatial soliton solutions for the optical wave evolution equation in centrosymmetric photorefractive materials are obtained analytically, and the explicit expressions for the width of these spatial solitons are also presented.