| Title | Simpler Interferometer Can Fine Tune Even the Quickest Pulses of Light | |
| Date | Thursday July 12 2018, @06:39AM | |
| Author | mrpg | |
| Topic | ||
| from the turn-it-on-and-off dept. | ||
Submitted via IRC for Fnord666
[...] When the beam exits the cube, the reflected light from the left portion of the beam and the transmitted light from the right portion of the beam are emitted from one face of the cube. Conversely, the transmitted light from left portion of the beam and reflected light from the right portion are emitted from another face of the cube.
This creates an extremely stable "Interference" pattern for Guo and his team to measure all the key spatial characteristics of a light beam- its amplitude, phase, polarization, wavelength, and, in the case of pulsed beams, the duration of the pulses. And not just as an average along the entire beam, but at each point of the beam.
This is especially important in imaging applications, Guo says. "If a beam is not perfect, and there is a defect on the image, it's important to know the defect is because of the beam, and not because of a variation in the object you are imaging," Guo says.
Source: Simpler interferometer can fine tune even the quickest pulses of light
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printed from SoylentNews, Simpler Interferometer Can Fine Tune Even the Quickest Pulses of Light on 2024-04-25 11:58:31