The News Today
__
12.1.20
But Can It Do 4K

Ultra-Speed Caltech Camera Films Light Moving Through Space in 3D

__Victor Tangermann__Filed Under: Hard Science
Images via Pixabay

Big FPS

For the first time, researchers at Caltech have figured out how to record videos of light moving in three dimensions.

It shouldn’t come as a surprise that a camera will need to have some beefy specs to pull that off. In fact, the one developed by Caltech professor Lihong Wang is capable of shooting videos at up to 100 billion frames per second. To put that into perspective, your average smartphone is limited to just 60.

Stereo Vision

Wang’s newest camera called, which has the wordy moniker “single-shot stereo-polarimetric compressed ultrafast photography” (SP-CUP), builds on previous iterations that were capable of shooting at even faster rates, some of them capable of shooting up to 70 trillion frames per second.

But what the new Caltech camera brings to the table is its ability to perceive the world more like humans can. The human eye’s depth perception relies on there being two of them — and the new rig can pull off the same stereoscopic trick.

“The camera is stereo now,” Wang said in a statement. “We have one lens, but it functions as two halves that provide two views with an offset. Two channels mimic our eyes.”

Sonoluminescence

Thanks to its added ability to tell the polarization of light, Wang is hoping it could illuminate what he calls one of the “greatest mysteries in physics”: how sound waves create tiny bubbles inside liquids, releasing light when they burst — a process known as sonoluminescence.

“The process that makes this happen is very mysterious because it all happens so fast, and we’re wondering if our camera can help us figure it out.”

READ MORE: Fast Enough to See Light Travel: Ultrafast Camera Films 3-D Movies at 100 Billion Frames per Second [California Institute Of Technology]

More on ultra-speed cameras: An Ultrafast Camera Filmed Electrons Interacting With Light Energy