不知道超高速摄像如何实现的。但是能看到光一帧一帧前行。也是相当震撼的了。
今天看到一个有点意思的视频。光的慢动作。
版主： who
Re: 今天看到一个有点意思的视频。光的慢动作。
看完你就知道了。
AI Overview
+4
No, the Caltech camera doesn't slow down light itself; instead, it captures images at an extremely high frame rate (10 trillion frames per second) to effectively create the illusion of slow motion as light travels, according to research from Caltech. This high frame rate allows the camera to capture the rapid movement of light as it travels through a medium, making it appear slowed down in the recorded footage.
Here's a more detailed explanation:
High Frame Rate:
The key to capturing light in "slow motion" is the camera's incredibly high frame rate. A typical video camera records at 24 or 30 frames per second. The Caltech camera, on the other hand, captures 10 trillion frames per second.
Recording Movement:
This high frame rate allows the camera to record a series of images in extremely rapid succession. As light travels, it moves from one image frame to the next, creating the impression that it's moving in slow motion.
No Light Speed Manipulation:
The camera doesn't actually change the speed of light. It merely captures its movement with such high temporal resolution that it can be visualized as a slow, continuous process, according to a Caltech research article.
T-CUP Technology:
The camera, developed by Lihong Wang and his team at Caltech, utilizes a technique called T-CUP (Temporally-focused Compressive Ultrafast Photography). This method combines a streak camera with a static camera and a data collection method from tomography to achieve this ultra-high speed imaging.
Applications:
This technology has potential applications in various fields, including physics, engineering, medicine, and materials science, allowing for the visualization of ultrafast phenomena and processes.