30.5 Applications of Atomic Excitations and De-Excitations Many properties of matter and phenomena in nature are directly related to atomic energy levels and their associated excitations and de-excitations. The color of a rose, the output of a laser, and the transparency of air are but a few examples. (See Figure 30.30.) While it may not appear that glow-in-the-dark pajamas and lasers have much in common, they are in fact different applications of similar atomic de-excitations. Figure 30.30 Light from a laser is based on a particular type of atomic de-excitation. (credit: Jeff Keyzer)

Question

 Applications of Atomic Excitations and De-Excitations
• Define and discuss fluorescence.
• Define metastable.
• Describe how laser emission is produced.
• Explain population inversion.
• Define and discuss holography.

30.5 Applications of Atomic Excitations and De-Excitations
Many properties of matter and phenomena in nature are directly related to atomic energy levels and their associated excitations
and de-excitations. The color of a rose, the output of a laser, and the transparency of air are but a few examples. (See Figure
30.30.) While it may not appear that glow-in-the-dark pajamas and lasers have much in common, they are in fact different
applications of similar atomic de-excitations.
Figure 30.30 Light from a laser is based on a particular type of atomic de-excitation. (credit: Jeff Keyzer)

Image Transcription

30.5 Applications of Atomic Excitations and De-Excitations Many properties of matter and phenomena in nature are directly related to atomic energy levels and their associated excitations and de-excitations. The color of a rose, the output of a laser, and the transparency of air are but a few examples. (See Figure 30.30.) While it may not appear that glow-in-the-dark pajamas and lasers have much in common, they are in fact different applications of similar atomic de-excitations. Figure 30.30 Light from a laser is based on a particular type of atomic de-excitation. (credit: Jeff Keyzer)

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Physics of Atoms