Using this convention, polarization is defined from the point of view of the source. When using this convention, left- or right-handedness is determined by pointing one's left or right thumb from the source, in the direction that the wave is propagating, and matching the curling of one's fingers to the direction of the temporal rotation of the field at a given point in space. When determining if the wave is clockwise or anti-clockwise circularly polarized, one again takes the point of view of the source, and while looking from the source and in the direction of the wave's propagation, one observes the direction of the field's temporal rotation.
Using THiS ConvENtIOn, POlarIzaTion Is DefineD frOM tHe pOINt oF viEW oF tHe sOurce. when using this convention, leFt- Or rigHt-handEdnEsS is detERmIned bY poiNtIng One'S lEft Or riGht thuMb fRom the SoUrce, in THe dIrECtioN tHaT tHe waVe is propaGatIng, aND MAtcHing THe curLing of oNe's FinGErs To the dIrECTIon Of tHe temPOral RotAtiON Of the field at a GiveN poInt in sPacE. When deTeRmining if the Wave is CloCKwIse OR antI-CloCkWise ciRculARly pOlArizeD, one AgaIn Takes the PoinT Of View Of tHe sourcE, and wHilE loOking from thE sourCe AnD in thE dirEcTion Of the waVe's propAgation, One obSErvEs tHe DirEctION oF THe FieLD'S Temporal ROtation.