Photon Avalanching process realized by Columbia Engineering researchers (image)

Columbia University School of Engineering and Applied Science

Caption

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 sets off a chain reaction of energy transfers and further absorption events that result in many highly excited ions within the nanoparticle, which then release their energy in the intense emission of many higher-energy photons.

Credit

Miko?aj ?ukaszewicz/ Polish Academy of Sciences

Usage Restrictions

Please credit as: Miko?aj ?ukaszewicz/ Polish Academy of Sciences

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