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Exploring the World with Digital Holographic Microscopy
Digital Holographic Microscopy (DHM) is an advanced imaging technology that allows scientists to observe and analyze microscopic structures in three dimensions without the need for labeling or staining. By capturing the phase information of light waves, DHM provides detailed, quantitative data about transparent and living samples, making it a powerful tool in research and industry.
How Digital Holographic Microscopy Works
DHM works by recording the interference pattern created when a coherent light source, such as a laser, interacts with a sample. This pattern, called a hologram, is captured by a digital sensor. Using computational reconstruction, the hologram is converted into a 3D image of the sample, providing both amplitude and phase information. This process allows researchers to measure properties like thickness, refractive index, and surface morphology with high precision.