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IMAGE: An illustration of the chain-reaction process that underlies the photon avalanching mechanism Columbia Engineering researchers have realized in their nanoparticles. In this process, the absorption of a single low-energy photon.
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Credit: Miko?aj ?ukaszewicz/ Polish Academy of Sciences
New York, NY January 13, 2021 Researchers at Columbia Engineering report today that they have developed the first nanomaterial that demonstrates photon avalanching, a process that is unrivaled in its combination of extreme nonlinear optical behavior and efficiency. The realization of photon avalanching in nanoparticle form opens up a host of sought-after applications, from real-time super-resolution optical microscopy, precise temperature and environmental sensing, and infrared light detection, to optical analog-to-digital conversion and quantum sensing. ....

New York , United States , Columbia University , South Korea , Yawei Liu , P James Schuck , Emorym Chan , Artur Bednarkiewicz , Changhwan Lee , Brucee Cohen , Ayelet Teitelboim , Kaiyuan Yao , Yung Doug Suh , Angel Fernandez Bravo , Jemma Xu , James Schuck , Emory Chan , Bruce Cohen , Agata Kotulska , Energy Frontier Research Center At Columbia University , Key Laboratory Of Rare Earth Resource Utilization , Us Department Of Energy , Division Of Molecular Biophysics Integrated Bioimaging , Sungkyunkwan University , Academy Of Sciences , Changchun Institute Of Applied Chemistry ,