Definition of Whispering-gallery wave
Whispering-gallery waves, or whispering-gallery modes, are a type of wave that can travel around a concave surface. Originally discovered for sound waves in the whispering gallery of St Paul's Cathedral, they can exist for light and for other waves, with important applications in nondestructive testing, lasing, cooling and sensing, as well as in astronomy.
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Frequently asked questions
What is Whispering-gallery wave?
Whispering-gallery waves, or whispering-gallery modes, are a type of wave that can travel around a concave surface. Originally discovered for sound waves in the whispering gallery of St Paul's Cathedral, they can exist for light and for other waves, with…
Sources & credits
- Wikipedia: Whispering-gallery wave – CC BY-SA 4.0
- Image by Femtoquake – CC BY-SA 3.0