can i import picture in emiter shaders ?

hi,JPG
i try to create a luminous frame with emiter : i create my model and i've got my my picture but however i import the JPG, it never appears in the rendering !
did you have some advice ????
(sorry for my bad english : i'm french....)
Comments
What channel do you put the .jpg in?
and which render engine/shader? You can certainly put a map in Emissive colour in the Iray Uber Base for use in Iray.