发明名称 |
TRACKING AND CHARACTERIZING PARTICLES WITH HOLOGRAPHIC VIDEO MICROSCOPY |
摘要 |
In-line holography to create images of a specimen, such as one or more particles dispersed in a transparent medium. Analyzing these images with results from light scattering theory yields the particles' sizes with nanometer resolution, their refractive indexes to within one part in a thousand, and their three dimensional positions with nanometer resolution. This procedure can rapidly and directly characterize mechanical, optical and chemical properties of the specimen and its medium. |
申请公布号 |
US2014333935(A1) |
申请公布日期 |
2014.11.13 |
申请号 |
US201414446306 |
申请日期 |
2014.07.29 |
申请人 |
NEW YORK UNIVERSITY |
发明人 |
Grier David G.;Lee Sang-Hyuk;Cheong Fook C. |
分类号 |
G02B21/36;G01B9/02 |
主分类号 |
G02B21/36 |
代理机构 |
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代理人 |
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主权项 |
1. A method for characterizing a specimen, comprising:
providing a holographic microscope; providing a collimated laser beam to the holographic microscope; scattering the collimated laser beam off the specimen to generate a scattered portion; generating an interference pattern from an unscattered portion of the collimated laser beam and the scattered portion; recording the interference pattern for subsequent analysis; and measuring at least one of a spatial location, a mechanical property, an optical property and a chemical property of the specimen. |
地址 |
New York NY US |