Research ArticlePHYSICS

Tracking ultrafast hot-electron diffusion in space and time by ultrafast thermomodulation microscopy

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Science Advances  10 May 2019:
Vol. 5, no. 5, eaav8965
DOI: 10.1126/sciadv.aav8965

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  • Tracking Ultrafast Electrons - NonThermal Processes, and Sharing Models

    Readers:

    I enjoyed this well written article, but my interest was piqued by what was not included. You mentioned "We assume thermalization of the electron subsystem, as our temporal resolution of 250 fs cannot resolve the initial nonthermal stage right after photoexcitation.", but did not really sketch out the main features of the "nonthermal stage". You do not have to, with current standards, but suppose the rather small community of people trying to model this region combined their models and data in a formal way, so anyone could refer to a living model with all the contributions?

    Decoding the ultrafast formation of a Fermi-Dirac distributed electron gas - https://arxiv.org/pdf/1804.01403.pdf
    Highly sensitive hot electron bolometer based on disordered graphene - https://www.nature.com/articles/srep03533

    For a hole that large, it is courteous to at least give a summary of what people will find if they explore in that direction.

    RichardCollins@TheInternetFoundation.Org

    Competing Interests: None declared.

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