1. It's Time to Duel! Welcome to the NF Yu-Gi-Oh! Grand Championships. This tournament will span across 4 sections:
    Akihabara Lounge| Mafia | OBD |The Alley
    Dismiss Notice
  2. Welcome to the forums! Take a second to look at our Beginner's Guide. It contains the information necessary for you to have an easier experience here.

    Thanks and have fun. -NF staff
    Dismiss Notice
  3. Stop Scrolling!
    Attention - When discussing new chapters of an anime or manga, please use a source from the official list of approved sources. If you would like to contribute to the list, please do so in the suggestions section.
    Dismiss Notice
  4. Dragon Ball Drawing Contest pt2
    Dismiss Notice
  5. If you write blogs about the current anime season (for linking) or like to add descriptions / impressions on certain series and like to add them to our wiki, then send us a ticket.
    Dismiss Notice

  6. BoOooOo!


    Come one, come all to the wondrously eerie Pumpkin Patch! Perform tasks and challenges each day to stock up on the mystical Pumpkin Coins and use them to exchange for grand forum prizes! Don't miss out on this once in a lifetime opportunity, don't fear that which lies beneath the surface!

    Schedule:
    Signups; October 10th - 15th
    Tasks and Challenges; October 15th - 29th
    Pumpkin Picking; October 30th - 31st
    Dismiss Notice

  7. A blank contract written with magical ink?! Check out our Spooktacular Trick or Treat Event.
    Dismiss Notice

World's fastest camera freezes time at 10 trillion frames per second

Discussion in 'The NF Café' started by Catalyst75, Oct 12, 2018 at 10:28 PM.

  1. Catalyst75 Well-Known Member

    Messages:
    15,164
    Likes Received:
    1,300
    Trophy Points:
    1,018
    Joined:
    Dec 17, 2011
    Reputation:


    What happens when a new technology is so precise that it operates on a scale beyond our characterization capabilities? For example, the lasers used at INRS produce ultrashort pulses in the femtosecond range (10-15 s), which is far too short to visualize. Although some measurements are possible, nothing beats a clear image, says INRS professor and ultrafast imaging specialist Jinyang Liang. He and his colleagues, led by Caltech's Lihong Wang, have developed what they call T-CUP: the world's fastest camera, capable of capturing 10 trillion (1013) frames per second (Fig. 1). This new camera literally makes it possible to freeze time to see phenomena—and even light—in extremely slow motion.

    In recent years, the junction between innovations in non-linear optics and imaging has opened the door for new and highly efficient methods for microscopic analysis of dynamic phenomena in biology and physics. But harnessing the potential of these methods requires a way to record images in real time at a very short temporal resolution—in a single exposure.

    Using current imaging techniques, measurements taken with ultrashort laser pulses must be repeated many times, which is appropriate for some types of inert samples, but impossible for other more fragile ones. For example, laser-engraved glass can tolerate only a single laser pulse, leaving less than a picosecond to capture the results. In such a case, the imaging technique must be able to capture the entire process in real time.

    Compressed ultrafast photography (CUP) was a good starting point. At 100 billion frames per second, this method approached, but did not meet, the specifications required to integrate femtosecond lasers. To improve on the concept, the new T-CUP system was developed based on a femtosecond streak camera that also incorporates a data acquisition type used in applications such as tomography.

    "We knew that by using only a femtosecond streak camera, the image quality would be limited," says Professor Lihong Wang, the Bren Professor of Medial Engineering and Electrical Engineering at Caltech and the Director of Caltech Optical Imaging Laboratory (COIL). "So to improve this, we added another camera that acquires a static image. Combined with the image acquired by the femtosecond streak camera, we can use what is called a Radon transformation to obtain high-quality images while recording ten trillion frames per second."
    Setting the world record for real-time imaging speed, T-CUP can power a new generation of microscopes for biomedical, materials science, and other applications. This camera represents a fundamental shift, making it possible to analyze interactions between light and matter at an unparalleled temporal resolution.

    The first time it was used, the ultrafast camera broke new ground by capturing the temporal focusing of a single femtosecond laser pulse in real time (Fig. 2). This process was recorded in 25 frames taken at an interval of 400 femtoseconds and detailed the light pulse's shape, intensity, and angle of inclination.

    "It's an achievement in itself," says Jinyang Liang, the leading author of this work, who was an engineer in COIL when the research was conducted, "but we already see possibilities for increasing the speed to up to one quadrillion (10 exp 15) frames per second!" Speeds like that are sure to offer insight into as-yet undetectable secrets of the interactions between light and matter.


     
    Tags:
  2. mr_shadow Minister of State Security Moderator

    Messages:
    28,859
    Likes Received:
    1,330
    Trophy Points:
    1,518
    Joined:
    May 16, 2005
    Reputation:
    Flag:
    Sweden
    >Liang Jinyang
    >Wang Lihong

    But muh cheap knockoffs! :argh
     
    • Optimistic Optimistic x 1
    • List
  3. Mider T VM Rapist

    Messages:
    75,802
    Likes Received:
    1,709
    Trophy Points:
    3,394
    Joined:
    Jun 17, 2006
    Reputation:
    Wait, if its fast enough to even catch light, how would using the flash work?
     
  4. Alwaysmind 总是心神

    Messages:
    15,024
    Likes Received:
    464
    Trophy Points:
    689
    Joined:
    Oct 31, 2012
    Reputation:
    Flag:
    Switzerland, Canada, China
     
  5. wibisana still newbie

    Messages:
    13,408
    Likes Received:
    412
    Trophy Points:
    688
    Joined:
    Apr 18, 2011
    Reputation:
    Flag:
    Poland
Loading...