Tracy S. Clement

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We develop and apply frequencydomain mismatch corrections to a temporal electro-optic sampling system. We use these corrections to characterize the magnitude and phase of electrical sources that are physically far removed from the point at which the electrooptic sampling system measures voltage waveforms. We demonstrate the technique by determining the(More)
We measure the second- and third-order dispersion coefficients, d(2)k/domega(2) and d(3)k/domega(3), of water for wavelengths from 0.45 to 1.3 mum using a Michelson white-light interferometer. In this interval, the second-order dispersion ranges from 0.068 to -0.1 fs(2)/mum, and the third-order dispersion ranges from 0.048 to 1.18 fs(3)/mum. We observe an(More)
We describe a method for calibrating the voltage that a step-like pulse generator produces at a load at every time point in the measured waveform. The calibration includes an equivalentcircuit model of the generator that can be used to determine how the generator behaves when it is connected to arbitrary loads. The generator is calibrated with an(More)
Frequency-resolved optical gating is used to characterize the propagation of intense femtosecond pulses in a nonlinear, dispersive medium. The combined effects of diffraction, normal dispersion, and cubic nonlinearity lead to pulse splitting. The role of the phase of the input pulse is studied. The results are compared with the predictions of a(More)
Using single-shot, self-diffraction, frequency-resolved optical gating, we measure the complete electric field amplitude and phase of 405-nm second-harmonic pulses from an amplified Ti:sapphire system. The single-shot frequency-resolved optical gating device gives both qualitative and quantitative information, which is useful for analyzing and optimizing(More)
We study several problems related to the characterization of the timebase in high-speed sampling oscilloscopes. First, we examine the bias of using the method of the first-order approximation to estimate the additive and time jitter noises, and present a procedure to adjust for the bias in the estimates. We then study the bias and variance of a(More)
We determine the nonlinear refractive index, n(2), in an optical material through the direct measurement of the phase of an ultrashort optical pulse, using the technique of frequency-resolved optical gating. This method results in the accurate measurement of n(2), with the error dominated by the uncertainty in the fluence measurement. We measure n(2) in(More)