Monochromatic LED Laser
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PHYSICS
Optoelectronics
Monochromatic LED Laser
The blurred line between LEDs and lasers sparks innovation in light-based therapies
8 Feb 2026
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What is a key difference between LEDs and lasers that affects their use in monochromatic light applications?
LEDs produce coherent light but at lower power than lasers.
LEDs emit incoherent light through spontaneous emission, while lasers emit coherent light via stimulated emission.
Lasers emit incoherent light, whereas LEDs emit perfectly monochromatic light.
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