CUSP: can You see the light waves travel?

See waves of light traveling it is now possible to thanks to a new camera, ultra-fast developed at the California Institute of Technology (Caltech), and has received the name CUSP (photography spectral ultrafast compressed).

This camera is able to take up to 70 trillion frames per second. That is fast enough to see waves of light travelling, and the decay of fluorescent molecules.

The team that created it, led by Lihong Wang, professor of Medical Engineering and Electrical Engineering in the Department of Medical Engineering at Caltech, explains that this camera is similar in some respects to the time-lapse cameras above the computer, such as photo ultra-fast compressed sensitive to the phase, or device pCUP, that can take 1 trillion frames per second of objects and phenomena transparent.

CUSP combines a laser that emits pulses of extremely short laser light that last only a milbillonésima of a second (a femtosecond) with optical and a specialized type of camera. The lens splits the single pulses of femtosecond laser light in a train of pulses even shorter, with each one of these pulses capable of producing an image on the camera.

Wang said the technology would open new avenues of research in fields that include the fundamental physics, the miniaturization of semiconductors of the next generation and the life sciences.

“we envision applications in a rich variety of phenomena, extremely fast, as the propagation of light ultrashort, wave propagation, nuclear fusion, photon transport in clouds, and biological tissues, and the decay of fluorescent biomolecules, among other things,” he says in a statement.

In the edition of April 29, ‘Nature Communications’ an article appears that describes the technology, entitled, “Imaging ultrafast single-shot that can reach 70 trillion frames per second”.

20MINUTES.IS – Technology

CUSP: can You see the light waves travel?
Source: english  
May 6, 2020

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