Becke line
The bright optical halo at the edge of a solid fragment immersed in a liquid, visible under the microscope; moves toward the higher-RI medium when focus is raised. Its disappearance marks the RI match condition.
The bright optical halo at the edge of a solid fragment immersed in a liquid, visible under the microscope; moves toward the higher-RI medium when focus is raised. Its disappearance marks the RI match condition.
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