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US 10,310,186 B2Granted
Method of engineering the dispersion of whispering gallery mode resonators and the resonators with dispersion engineered by the method
AssigneeCalifornia Institute of Technology
InventorsIvan S. Grudinin, Nan Yu, Lukas M. Baumgartel
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Abstract
A method for fabricating a resonator structure, comprising engineering dispersion of electromagnetic radiation guided along a boundary of an axially symmetric substrate, the engineering comprising micro-structuring a geometry of the boundary, wherein the structure defines a waveguide for electromagnetic radiation.
Claims21
A resonator, comprising:
- a protrusion formed on an axially symmetric boundary of a substrate, the protrusion:
- guiding a mode of the electromagnetic radiation in the resonator,
- having a rectangular cross-section having a height and a width and an aspect ratio A (the width divided by the height) wherein A≤2, and
- wherein the aspect ratio is capable of significantly altering a shape of the dispersion curve of the electromagnetic radiation in the resonator, rather than merely shifting the dispersion curve, resulting in flattening of the wavelength dependence of dispersion of the electromagnetic radiation guided within the resonator.
1 more element
A method for fabricating a resonator structure, comprising:
- forming a protrusion on an axially symmetric boundary of a substrate, the protrusion:
- guiding a mode of electromagnetic radiation along the boundary,
- having a rectangular cross-section having a height and a width and an aspect ratio A (the width divided by the height) wherein A≤2, and
- wherein the aspect ratio significantly alters and flattens the wavelength dependence of dispersion of the electromagnetic radiation guided within the resonator.
1 more element
Dependencies are inferred from the claim text.