  We appraise a waveguide-integrated plasmonic graphene photodetector based on
the hot carrier photo-bolometric effect, with performance characterized
simultaneously by high responsivity, on the scale of hundreds of AW-1, and high
speed on the scale of 100s of GHz. Performance evaluation is based on a theory
of bolometric effect originating from the band nonparabolicity of graphene.
Results compare favorably with the state-of-the-art plasmonic bolometric
photodetectors, predicting up to two orders of magnitude increase in a
responsivity while keeping speed on the same level, defined by the
electron-lattice scattering time in graphene.
