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Researchers Develop Chip-Size Titanium-Doped Sapphire Laser

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NEW HAVEN, Conn., Feb. 6, 2023 — A team of researchers has developed what is reportedly the first chip-scale titanium-doped sapphire laser — an innovation that could lead to new applications ranging from atomic clocks to quantum computing and spectroscopic sensors. The titanium-doped sapphire laser was a major advance in the field of lasers when it was introduced in the 1980s. Key to its success was the material used as its gain medium. Sapphire doped with titanium ions proved particularly powerful, providing a much wider laser emission bandwidth than traditional semiconductor lasers. The tabletop...Read full article

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    Published: February 2023
    Glossary
    chip
    1. A localized fracture at the end of a cleaved optical fiber or on a glass surface. 2. An integrated circuit.
    quantum
    The term quantum refers to the fundamental unit or discrete amount of a physical quantity involved in interactions at the atomic and subatomic scales. It originates from quantum theory, a branch of physics that emerged in the early 20th century to explain phenomena observed on very small scales, where classical physics fails to provide accurate explanations. In the context of quantum theory, several key concepts are associated with the term quantum: Quantum mechanics: This is the branch of...
    Research & TechnologyLasersOpticstitanium-doped sapphire laserTi:sapphireTi-sapphirechipquantumchip-scaleYaleYale SEASNature PhotonicsAmericas

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