642 citations · 2k across the 9 of their papers we have counts for
4 papers · 1 filter
Seeing many-body effects in single- and few-layer graphene: Observation of two-dimensional saddle-point excitons
Kin Fai Mak, Jie Shan, Tony F. Heinz
Significant excitonic effects were observed in graphene by measuring its optical conductivity in a broad spectral range including the two-dimensional π-band saddle-point singularit…
Thermal conductance at the graphene-SiO2 interface measured by optical pump-probe spectroscopy
Kin Fai Mak, Chun Hung Lui, Tony F. Heinz
We have examined the interfacial thermal conductance σint of single and multi-layer graphene samples prepared on fused SiO2 substrates by mechanical exfoliation of graphite. By usi…
Ultrafast Photoluminescence from Graphene
Chun Hung Lui, Kin Fai Mak, Jie Shan +1
Since graphene has no band gap, photoluminescence is not expected from relaxed charge carriers. We have, however, observed significant light emission from graphene under excitation…
Electron and optical phonon temperatures in electrically biased graphene
Stéphane Berciaud, Melinda Y. Han, Louis E. Brus +2
We examine the intrinsic energy dissipation steps in electrically biased graphene channels. By combining in-situ measurements of the spontaneous optical emission with a Raman spect…