wavefront
Definition
Noun: 1. (Physics) An imaginary surface connecting all adjacent points in a wave that are in the same phase of oscillation at the same instant. It represents the leading edge of a wave as it propagates through a medium or space.
Usage
The term wavefront is used to describe and analyze the propagation of waves, such as sound, light, or water waves. It is a fundamental concept for visualizing how a wave moves and interacts with objects or other waves.
Examples
- Noun:
- A spherical wavefront expands outward from a point source of sound.
- When light passes through a narrow slit, the wavefront is altered, causing diffraction.
- The lens is designed to convert a curved wavefront into a flat one.
Advanced Usage
- Wavefront analysis/aberrometry: A technique used in ophthalmology to measure how light waves travel through the eye's optical system, identifying imperfections.
- The doctor used wavefront analysis to create a detailed map of the patient's cornea.
- Wavefront sensor: A device that measures the shape and distortions of an incoming wavefront.
- Advanced telescopes use adaptive optics with a wavefront sensor to correct for atmospheric distortion.
Variants and Related Words
- Wave (n): A disturbance that transfers energy through a medium or space.
- Waveform (n): A graphical representation of the shape of a wave, showing how its amplitude varies over time.
- Wavelet (n): A small wave; also a mathematical function used in signal processing.
Synonyms
- Phase front
- Wave surface
Related Concepts (Not Phrasal Verbs or Idioms)
- Huygens' Principle: A theory stating that every point on a wavefront is a source of secondary wavelets, and the new wavefront is the surface tangent to these wavelets.
- Ray: A line drawn perpendicular to a wavefront, indicating the direction of wave propagation.
- Interference: The phenomenon where two or more wavefronts overlap, combining to form a new wave pattern.
Noun
-
(physics) an imaginary surface joining all points in space that are reached at the same instant by a wave propagating through a medium
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