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All-Biomaterial Laser Using Vitamin and Biopolymers

Authors

  • Sedat Nizamoglu,

    1. Harvard Medical School and Wellman, Center for Photomedicine, Massachusetts General Hospital, Cambridge, Massachusetts, USA
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  • Malte C. Gather,

    1. Harvard Medical School and Wellman, Center for Photomedicine, Massachusetts General Hospital, Cambridge, Massachusetts, USA
    2. Institut für Angewandte Photophysik, Technische Universität Dresden, Dresden, Germany
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  • Seok Hyun Yun

    Corresponding author
    1. Harvard Medical School and Wellman, Center for Photomedicine, Massachusetts General Hospital, Cambridge, Massachusetts, USA
    2. WCU Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology, Daejeon, Korea
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Abstract

Lasers based on biomaterials known as Generally-Recognized-As-Safe (GRAS) substances approved by the U.S. Food and Drug Administration (FDA) are demonstrated. Vitamin B2-doped microdroplet lasers are generated and trapped on a super-hydrophobic poly-L-lactic acid substrate. The spheres support whispering gallery mode lasing at optical pump energies as low as 15 nJ per pulse (≈1 kW/mm2).

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