Light curves of early and late jets in the late dissipation model at various energy bands. Syn and SSC come from synchrotron and SSC emission by relativistic electrons accelerated at the external shock of the early jet. LP represents the assumed seed plateau emission from the late jet, and EIC is the EIC emission by Compton scatterings of late prompt photons by electrons accelerated at the external shock. The parameter set is the same as that used for Figure 14. We can see that the EIC light curve is much shallower than that of late prompt emission after T _a . The attenuation by pair creation both inside and outside the source is taken into account.