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| AIST's finite-difference time-domain simulation of the electromagnetic field around the ridge top facet of the GaAs structure. The two yellow arrows in a) indicate the evanescent waves. These do not propagate in air in b), instead coupling together when meeting at the ridge-top in c) and then afterwards propagating in air in a direction normal to the ridge-top in frames d) and e). Credit: AIST. |
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