Research on femto-second laser pulse width and pulse waveform measurement technology
نویسندگان
چکیده
منابع مشابه
Design of Monophasic Spike-Exponential Waveform for Functional Electrical Stimulator Based on Pulse Width Modulation
The Functional Electrical Stimulator design using monophasic spike-exponential waveform was proposed and described in this study. The monophasic square waveform has benefit in generating an action potential, but it could cause side effects such as toxic caused by the electrode polarization. The square waveform signal which the frequency and pulse width could be modulated was manipulated to be t...
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The effect of the laser pulse width on the production of nanoparticles by laser fragmentation was investigated. Laser pulse widths of 164 fs, 5 ps, 4 ns, 36 ns, 64 ns, and 100 ns were used. To assess the effect of the laser pulse width on the energy distribution in the nanoparticles, the energy distribution was simulated using wave optics. Silver (Ag) nanoparticles were produced by laser irradi...
متن کاملNovel method for ultrashort laser pulse-width measurement based on self-diffraction effect.
Previous pulse-width measurement methods for ultrashort laser pulses have broadly employed nonlinear effects; thus any of these previous methods may experience problems relating to nonlinear effects. Here we present a new pulse-width measuring method based on the linear selfdiffraction effect. Because the Talbot effect of a grating with ultrashort laser pulse illumination is different from that...
متن کاملLaser Pulse Variations and Their Influence on Radiometric Calibration of Full-waveform Laser Scanner Data
Full-waveform laser scanning extends the information content of “conventional” laser scanning by storing the temporal profile of both the emitted laser pulse and its echoes. This allows for calculating radiometric quantities in addition to the geometric data. This radiometric information needs to be calibrated in order to enable comparison among flight strips of the same laser scanner campaign ...
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ژورنال
عنوان ژورنال: Journal of Applied Optics
سال: 2019
ISSN: 1002-2082
DOI: 10.5768/jao201940.0203003