Development is based on the physical effect of the whispering gallery known in acoustics. Light is reflected in the microscopic disk that minimizes energy losses many times. Aluminum nitrons and gallium additional layer of buffer prevents radiation leakage.
As the researchers explained, the main problem when creating such lasers was to hold light in a miniature resonator. Russian physicists managed to solve this problem and combined several innovative approaches.
Development opens expectations to create a new generation of compact optolectronic devices.
Source: Ferra
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