Real-time mapping of electronic structure with single-shot two-dimensional electronic spectroscopy

摘要

A technique for forming a two-dimensional electronic spectrum of a sample includes illuminating a line within a portion of the sample with four laser pulses; where along the entire line the difference in the arrival times between two of the laser pulses varies as a function of the position and the difference in the arrival times between the other two pulses is constant along the entire line. A spectroscopic analysis may then be performed on the resulting pulsed output signal from the illuminated line to produce a single-shot two dimensional electronic spectroscopy.

主权项

1. A method for forming a two-dimensional electronic spectrum of a sample, the method comprising:
illuminating a line within a homogeneous portion of the sample with four laser pulses, wherein each of the four laser pulses is directed to illuminate the line upon incidence; tilting the relevant wavefronts of at least some of the four laser pulses, such that along the entire line the difference in the arrival times between the first and second laser pulses varies as a function of the position on the line and the difference in the arrival times between the third and fourth laser pulses is constant along the entire line; and performing a spectroscopic analysis of a resulting pulsed output signal from the illuminated line.