**100 micro meters high cubic pillars homogeneously distributed on a 1 mm x 1 mm surface of the solid with a distance of 100 micro meter among each other, the solid is half transparet and light blue. A half milli meter transparent bubble presents on the cubic pillars.A line of red laser through the solid from the other side and through the channel between two pillars finally through the bubble.** - Upscaled by <@1087366427687780375> (fast)
100 micro meters high cubic pillars homogeneously distributed on a 1 mm x 1 mm surface of the solid with a distance of 100 micro meter among each other, the solid is half transparet and light blue. A half milli meter transparent bubble presents on the cubic pillars.A line of red laser through the solid from the other side and through the channel between two pillars finally through the bubble.