Molecular Orientation by Intense Single Cycle THz Pulses

TL;DR

This paper demonstrates that intense single-cycle THz pulses can induce significant, field-free molecular orientation at ambient conditions by resonantly interacting with molecular rotations, supported by calculations and measurements.

Contribution

It introduces a method to achieve molecular orientation using intense single-cycle THz pulses, combining theoretical calculations with experimental validation.

Findings

Significant field-free molecular orientation achieved

Correlation between THz-induced orientation and alignment established

Experimental and theoretical results are in agreement

Abstract

Intense single-cycle THz pulses resonantly interacting with molecular rotations are shown to induce significant field-free orientation under ambient conditions. We calculate and measure the angular distribution associated with THz-driven rotational motion and correlate the THz-induced orientation and alignment in an OCS gas sample.