Wavepacket diagnosis with chirped probe pulses Original Research Article

For linearly chirped probe pulses, the observable pump–probe signal can be obtained analytically under useful idealizations: Gaussian packet and pulse, linear chirp, linear difference potential, and constant wavepacket group velocity within the probe window. These conditions allow the expression of the signal as a cross correlation between packet and probe window traveling in coordinate space at velocities v and vl, respectively. The signal delay and its integrated area are independent of chirp. Relative to zero-chirp, the signal is temporally compressed for 0