Retrieving broadband ultrashort THz wave packets through lossy channels

TL;DR

This paper presents a method to accurately recover broadband ultrashort THz wave packets transmitted through lossy channels, overcoming physical limitations like dispersion and absorption with a reconstruction algorithm.

Contribution

It introduces a novel reconstruction technique that enables full recovery of THz pulse shape, duration, and amplitude despite lossy detection conditions.

Findings

Successful recovery of THz pulse characteristics in lossy channels

Reconstruction algorithm encodes detection system properties

Potential for improved broadband THz communication and sensing

Abstract

Most transmission and detection channels fail to faithfully support broadband wave packets because of physical limitations, like chromatic dispersion and absorption. We explore the case of lossy detection of ultrashort THz pulses using the widespread electro-optic detection scheme. We demonstrate that one can fully recover the original THz pulse shape, duration and amplitude, using a simple experimental procedure and a reconstruction algorithm which encodes the physical properties of the detection system.