Journal
SCIENTIFIC REPORTS
Volume 2, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/srep00445
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Funding
- Microsystems Technology Office (MTO) in the Defense Advanced Research Projects Agency (DARPA)
- National Institute of Health (NIH) [CA-16042, AI-28697]
- Jonsson Comprehensive Cancer Center (JCCC)
- UCLA AIDS Institute
- David Geffen School of Medicine at UCLA
- Breast Cancer Research Program in the Congressionally Directed Medical Research Programs (CDMRP)
- Burroughs Wellcome Fund
- Natural Science and Engineering Research Council of Canada (NSERC)
- German Research Foundation
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Laser scanning technology is one of the most integral parts of today's scientific research, manufacturing, defense, and biomedicine. In many applications, high-speed scanning capability is essential for scanning a large area in a short time and multi-dimensional sensing of moving objects and dynamical processes with fine temporal resolution. Unfortunately, conventional laser scanners are often too slow, resulting in limited precision and utility. Here we present a new type of laser scanner that offers similar to 1,000 times higher scan rates than conventional state-of-the-art scanners. This method employs spatial dispersion of temporally stretched broadband optical pulses onto the target, enabling inertia-free laser scans at unprecedented scan rates of nearly 100 MHz at 800 nm. To show our scanner's broad utility, we use it to demonstrate unique and previously difficult-to-achieve capabilities in imaging, surface vibrometry, and flow cytometry at a record 2D raster scan rate of more than 100 kHz with 27,000 resolvable points.
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