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COMPACT DIGITAL HOLOGRAPHIC MICROSCOPE FOR PLANETARY IMAGING OR ENDOSCOPY
COMPACT DIGITAL HOLOGRAPHIC MICROSCOPE FOR PLANETARY IMAGING OR ENDOSCOPY
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机译:紧凑的数字全息显微术,用于行星成像或内窥镜检查
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摘要
In situ investigation of microbial life in extreme environments can be carried out with microscopes capable of imaging 3-dimensional volumes and tracking particle motion. A lensless digital holographic microscope is disclosed that provides roughly 1.5 micron resolution in a compact, robust package suitable for remote deployment. High resolution is achieved by generating high numerical-aperture input beams with radial gradient-index rod lenses. The ability to detect and track prokaryotes was explored using bacterial strains of two different sizes. In the larger strain, a variety of motions were seen, while the smaller strain was used to demonstrate a detection capability down to micron scales.
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