Everyday Light

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Everyday Light
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Optical emission
fluorescence
phosphorescence
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Light bulb
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Light bulb
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Neon light
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Neon light
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Neon light
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Fluorescent lights
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Fluorescent lights
Electrons flow through gas, ionizing the gas
Charged particles collide with gaseous mercury
Mercury becomes energetically excited
Energy is emitted as UV photons
UV photons excite phosphors on the inside of the
tube
phosphors emit fluorescence in the visible range
10
Fluorescent light
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Bedroom stars
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Remote control
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Remote control
LED 980 nm
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Motion sensor
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Motion sensor
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Laser pointer
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Laser pointer
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Laser pointer
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Laser pointer
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Laser pointer
Absorbs around 800 nm Fluoresces _at_ 1064 nm
divides wavelength by 2
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Laser pointer