An optical imaging method that uses dispersive elements to map the spatial profile of an object onto the spectrum of a broadband, ultrashort laser pulse. The pulse is then stretched in time using chromatic dispersion and amplified, allowing a single-pixel photodetector to capture 2D images at frame rates matching the laser's repetition rate. It is used to observe extremely fast non-repetitive phenomena.
We're setting up serial time-encoded amplified microscopy to catch the microfluidic droplet formation in real time.
Also heard as
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Related terms
Chirp
A change in instantaneous frequency across a pulse, so its colors arrive spread out in time.
Chromatic dispersion
The change of refractive index with wavelength, which separates colors in prisms and spreads pulses in time.
Supercontinuum
Extremely broad, spatially coherent white-light spectrum created by sending intense pulses through a nonlinear fiber.