World’s Fastest camera can capture a 100 billion fps(frames per second)
A team of biomedical engineers at Washington University in St. Louis, led by Lihong Wang, PhD, the Gene K. Beare Distinguished Professor of Biomedical Engineering, has developed the world’s fastest receive-only 2-D fastest camera, a device that can capture events up to 100 billion frames per second.
The research appears in the Dec. 4, 2014, issue of Nature.
This fastest camera is a series of devices envisioned to work with high-powered microscopes and telescopes to capture dynamic natural and physical phenomena.
Once the raw data are acquired, the real images are formed on a personal computer; the technology is known as computational imaging.
An immediate application of the fastest camera is in biomedicine. It can be used to detect diseases or reflect cellular environmental conditions like pH or oxygen pressure.
Using the Washington University technique, called compressed ultra fast photography (CUP), Wang and his colleagues have made movies of the images they took with single laser shots of four physical phenomena: laser pulse reflection, refraction, faster-than light propagation of what is called non-information, and photon racing in two media. While it’s no day at the races, the images are entertaining, awe-inspiring and represent the opening of new vistas of scientific exploration.
“For the first time, humans can see light pulses on the fly,” Wang says. “Because this technique advances the imaging frame rate by orders of magnitude, we now enter a new regime to open up new visions. Each new technique, especially one of a quantum leap forward, is always followed a number of new discoveries. It’s our hope that CUP will enable new discoveries in science—ones that we can’t even anticipate yet.”
This fastest camera doesn’t look like a Kodak or Cannon; rather, it is a series of devices envisioned to work with high-powered microscopes and telescopes to capture dynamic natural and physical phenomena. Once the raw data are acquired, the actual images are formed on a personal computer; the technology is known as computational imaging.
CUP photographs an object with a specialty fastest camera lens, which takes the photons from the object on a journey through a tube-like structure to a marvelous tiny apparatus called a digital micro-mirror device (DMD), smaller than a dime though hosting about 1 million micro-mirrors, each one just seven by seven microns squared.
There, micro-mirrors are used to encode the image, then reflect the photons to a beam splitter which shoots the photons to the widened slit of a streak camera.
The photons are converted to electrons, which are then sheared with the use of two electrodes, converting time to space.
The electrodes apply a voltage that ramps from high to low, so the electrons will arrive at different times and land at different vertical positions.
because this technique advances the imaging frame rate by orders of magnitude, we now enter a new regime to open new visions,” said Wang.