Instantaneous Processing of Ultrafast Waveforms by Wave Mixing Spectrally Decomposed Waves

Ultrafast phenomena in the natural sciences can be excited, manipulated and observed with tailored ultrashort optical pulses. These ultrafast waveforms are synthesized and processed in the temporal frequency domain by spatially dispersing the frequency components in a spectral processing device (SPD) and performing operations on the spectrally decomposed wave (SDW). Waveform synthesis by SDW filtering has been demonstrated with prefabricated masks, spatial light modulators and holograms. These filters are limited in their adaptability rate—a new filter can be implemented only as fast as the modulator response time or recording time of a new hologram—typically well over a microsecond.

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