----------I understand that we consider light as a transverse wave in the sense that light is composed of E&M fields oscillating perpendicular to each other and the direction of propagation. And I understand how we get from here to the idea of photons as 'wave packets.' The problem I have is in regards to how we often visualize light diffraction. For example, I've only ever seen the double slit experiment explained with a drawing of longitudinal waves (like sound waves). This explains the double slit experiment well, but to me, seams to be inconsistent with our understanding of light as a transverse wave, and also confuses me in terms of ray/geometric optics. Is this contradictory? Can someone offer me a more comprehensive/visual explanation of the complete nature of light?
EDIT: thank you for the clarification in the comments. I think I understand better and this image below helps me bridge the gap in terms of my visualization issues.