THz pulse shape control via laser chirp and wavelength dispersion

Anna Martinez; Jonathan Houard; Ammar Hideur; Domenico Paparo; Angela Vella

doi:10.1117/12.3016644

18 June 2024 THz pulse shape control via laser chirp and wavelength dispersion

Anna Martinez, Jonathan Houard, Ammar Hideur, Domenico Paparo, Angela Vella

Proceedings Volume 12994, Terahertz Photonics III; 1299402 (2024) https://doi.org/10.1117/12.3016644
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

The generation of Terahertz (THz) radiation using two-color plasma in gases has garnered significant interest within the scientific community for its ability to produce powerful waves with very broad and tunable spectra. Understanding how to modify the characteristics of the generated THz radiation paves the way for optimizing its performance for targeted applications. To achieve this, various approaches have been explored, however, the combined impact of chirp and wavelength dispersion has not yet been thoroughly investigated. Our study aims to understand how the laser chirp and the phase difference caused by air dispersion influence the shape of the THz pulse. The findings highlight that these factors significantly alter the shape of the THz pulse. Specifically, the nature of the chirp (positive or negative) in the pump laser distinctly affects the pulse shape. For instance, a pump laser with positive chirp results in a THz waveform with a negative monopolar configuration, while a laser with negative chirp generates a THz pulse with a positive configuration.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Anna Martinez, Jonathan Houard, Ammar Hideur, Domenico Paparo, and Angela Vella "THz pulse shape control via laser chirp and wavelength dispersion", Proc. SPIE 12994, Terahertz Photonics III, 1299402 (18 June 2024); https://doi.org/10.1117/12.3016644

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available