ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
A prototype autocorrelator device for measuring the pulse width of ultrashort laser pulses in the picosecond and femtosecond regimes has been constructed. The device is based on multiphoton induced ionization of electrons from a charged metal surface mounted on a vibrating silica fiber, which is an entirely different physical principle from those employed by existing methods for ultrashort pulse characterization, e.g., streak cameras or second harmonic generation. The new method distinguishes itself from existing techniques in that it is, in principle, applicable to a very wide range of wavelengths, from the far ultraviolet to the infrared, requires no special optical orientation of a nonlinear crystal, and can be used for both femtosecond and picosecond pulses. The prototype device has been successfully applied to 532 nm laser pulses with a ∼20 ps pulse width, and preliminary work shows it is applicable to femtosecond pulses as well © 2000 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1150502
Permalink