dark matter shield break

A new type of matter created by a Level 5 that didn’t fit into any academic categories.
His white wings ignored the laws of physics, as though he’d dragged them straight out of
an alternate universe. But Accelerator wasn’t shaken at all.
Whatever they were made of, he would crush all of it with his vector control ability.
“’Kay. I’ll bury you with the rest of the trash.”
Accelerator stepped in closer, trying to grasp at Kakine Teitoku’s heart.
But...
“You don’t get it, do you?”
As soon as Kakine said that, his white wings suddenly let out an intense, bright light.
“?!”
Accelerator felt a pain like he was being slowly roasted, and reflexively got away from
Kakine. Then he realized the strangeness of what had just happened.
Accelerator, who reflected every vector, had just been affected by an outside force.
“That was diffraction. When light waves and electrons pass through a slit, the waves
scatter in different directions. It’s in high school textbooks. If you make more than one
slit, you can make the waves interfere with one another.”
Basically, his white wings had tiny gaps too small to see, and those gaps changed the
nature of the sunlight coming through them and attacked him...or so Accelerator figured.
His wings hadn’t made light—they’d altered the light passing through them.
“Yeah, like everything, it all depends on how you use it. How’s it feel to die from a
sunburn?”

- Toaru Majutsu no Index Volume 15, Chapter 5 Part 3