coherent light

Synchronized photon emission

Coherent light consists of waves that maintain a constant phase relationship—their peaks and troughs align in space and time.

Laser light is coherent, which is why it can travel long distances as a tight beam and produce interference patterns.

Ordinary light sources like bulbs emit incoherent light, with waves jumbled in random phases.

Related

interference · holography · standing wave · diffraction · photon · collimation · lab equipment · beam · phase shift · spectroscopy · polarization · cutting · eye surgery · cavity · pulse · amplified · mirror · emission

Categories
Opposites
phase relationship

coherent lightspontaneous emission

Unstimulated atomic radiation release

thermal radiation

directionality and dispersion

coherent lightdiffuse light

Light spread evenly, not direct

scattered light · ambient light

spectral purity

coherent lightwhite light

All wavelengths combined

incandescent light · sunlight

Family

light, lightly, lighting, lighter, lighted, lights, lightness, coherent, cohesion

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