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  1. Coherence length - Wikipedia

    In physics, coherence length is the propagation distance over which a coherent wave (e.g. an electromagnetic wave) maintains a specified degree of coherence. Wave interference is strong when …

  2. Coherence Length – temporal coherence - RP Photonics

    The coherence length is a measure of temporal coherence, expressed as the propagation distance over which the coherence significantly decays.

  3. Coherence Length: A Key to Wave Properties and Applications

    Coherence length is the propagation distance over which a coherent wave maintains a specified degree of coherence. It quantifies the maximum distance over which a wave’s phase remains predictable …

  4. 5.4: Coherence - Physics LibreTexts

    Sep 16, 2022 · The coherence time Δ τ c is defined as the maximum time interval over which the phase of the electric field can be predicted. In the case of collisions-dominated emission by a single atom, …

  5. What is the coherence length? What is the coherence time?

    Coherence length is the space over which a wave is 'nicely' sinusoidal. In other words, it is the space over which we can predict the phase of a wave of beam (if we are speaking of lasers).

  6. Coherence length | physics | Britannica

    Jan 1, 2026 · If the centre of the range of wavelengths emitted is λ and the range of wavelengths emitted is Δλ, this coherence length equals λ 2 /2Δλ. Typical coherence lengths range from …

  7. Coherence length Definition - Principles of Physics II Key ...

    In practical applications, such as in interferometry, coherence length determines the maximum path length difference between light beams that can still produce observable interference patterns.