Fáziskompozíció

Fáziskompozíció refers to the process of creating a composite image by combining information from different phases of a light signal. In essence, it involves separating a signal into its amplitude and phase components and then manipulating or recombining these components to generate a new image. This technique is particularly useful in fields like interferometry, holography, and optical coherence tomography, where precise control over the phase of light is crucial for obtaining detailed information.

The fundamental principle behind fáziskompozíció lies in the wave nature of light. Light can be described by its amplitude, which relates to its intensity, and its phase, which describes the position of a point on the wave cycle. By analyzing these two components separately, researchers can extract specific types of information that might not be apparent in a standard intensity-based image. For example, phase information can reveal subtle variations in refractive index or surface topography.

In practice, fáziskompozíció often involves digital processing of interferometric data. An interferometer splits a beam of light into two paths, one of which interacts with the sample. The two beams are then recombined, and the resulting interference pattern contains information about the phase difference introduced by the sample. Advanced algorithms are used to unwrap the phase, removing ambiguities and allowing for quantitative analysis. This enables the reconstruction of high-resolution, phase-sensitive images.