Always on beat: Ultrashort flashes of light under optical control

phys.org | 9/9/2019 | Staff
jster97 (Posted by) Level 3
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Ultrashort laser pulses have enabled scientists and physicians to carry out high-precision material analyses and medical procedures. Physicists from the University of Bayreuth and the University of Göttingen have now discovered a new method for adjusting the extremely short time intervals between laser flashes with exceptional speed and precision. The intervals can be increased or decreased as needed, all at the push of a button. Potential applications range from laser spectroscopy to microscopy and materials processing. The researchers have now presented their latest findings in the journal Nature Photonics.

Laser pulses have long been utilized in research laboratories, industrial production, and medical therapies. In these applications it is often crucial that the pulses—also known as optical solitons—occur at certain intervals. Using a special high-speed measurement technique, the researchers have now been able to show how a short-pulse laser widely applied in research can be made to automatically generate pairs of light pulses separated by the desired interval. All that is required are small...
(Excerpt) Read more at: phys.org
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