In 1947, Hungarian-British physicist Dennis Gabor invented holography, a technique using laser light to record and reconstruct three-dimensional images. Though initially limited by available light sources, it promised revolutionary imaging. Holography influenced art, science, and poetic metaphors of illusion, memory, depth, and multidimensional reality.

The invention of holography in 1947 introduced a new visual dimension that experimental poets like John Cage and the Language poets began to explore in their works. This technology influenced postmodern poetry by challenging traditional forms and encouraging innovative ways to perceive and represent reality.