Feature
Nonlinear Optics in Crystalline Whispering Gallery Resonators
Whispering gallery resonators made from crystalline materials are compact, stable and highly tunable. These versatile devices can produce light in the classical and quantum domains, showing promise for applications in spectroscopy, metrology and quantum information schemes.
Artistic interpretation of a whispering gallery resonator.
For centuries, the term “whispering gallery” has been used to describe the remarkable ability of dome-shaped buildings to guide sound along their concave walls. In some structures, this steering is so efficient that a whisper uttered on one side of a large circular gallery could be clearly heard on the other. St. Paul’s cathedral in London is famous for having this property.
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