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  • Fixing leaky optical pipes with topological glue

    Combining theoretical insights with experimental results, physicists demonstrate a new design for optoelectronic devices that could help make optical fiber communications more energy efficient.
    an abstract depiction of an optical chip with arrows representing unidirectional light travel
    Combining theoretical insights with experimental results, physicists demonstrate a new design for optoelectronic devices that could help make optical fiber communications more energy efficient. (Image: Jicheng Jin)

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  • A world shaped by water and access
    Three people test water below a sand dam.

    Griffin Pitt, right, works with two other student researchers to test the conductivity, total dissolved solids, salinity, and temperature of water below a sand dam in Kenya.

    (Image: Courtesy of Griffin Pitt)

    A world shaped by water and access

    Griffin Pitt’s upbringing made her passionate about water access and pollution, and Penn has given her the opportunity to explore these issues back home in North Carolina and abroad.

    Oct 8, 2025