Generate picoseconds

In this paper, the preparation and characterization of the ultrafast photoconductive switch for generation of short current pulses are mentioned, which will be applied in the characterization of components, such as fast field effect transistor, fast resonant tunneling diodes and the investigation of pulse propagation called waveguides Current pulses are generated by a low-temperature grown GaAs (LT-GaAs) photoconductive switch and then guided through a coplanar waveguide.

7p vicaptainmarvel 21-04-2023 5 4   Download

Its tuning range of laser wavelength is narrower than that first-order distributed feedback dye laser, but lower noise and more stable laser operation is obtained. Single picosecond laser pulses tunable in the range of 543 nmto 596 nm can be produced by using different laser dye solutions. The tuning range of the second-order distributed feedback dye laser is extended to the shorter wavelengths which are close to pumping wavelength.

6p capheny 28-02-2020 12 0   Download

the generation of ultrashort laser pulses. Beginning with mode-locking of glass lasers in the 1960s, the development of dye lasers brought the pulse width down from picoseconds to femtoseconds. The breakthrough in solid state laser pulse generation provided the current reliable table-top laser systems capable of average power of about 1 watt, and peak power density of easily watts per square centimeter, with pulse widths in the range of four to eight femtoseconds.

356p dongkhanh0908 10-10-2012 64 13   Download