Next Article in Journal
Luminescent Properties of Sr4Si3O8Cl4:Eu2+, Bi3+ Phosphors for Near UV InGaN-Based Light-Emitting-Diodes
Previous Article in Journal
Quantum Wind Driven Optimization for Unmanned Combat Air Vehicle Path Planning
Open AccessArticle

Trichromatic π-Pulse for Ultrafast Total Inversion of a Four-Level Ladder System

Departament de Física, Universitat Politècnica de Catalunya, Colom 11, Terrassa (Barcelona) 08222, Spain
Escola Politècnica Superior, Universitat de Vic, Carrer de la Laura 13, Vic (Barcelona) 08500, Spain
Author to whom correspondence should be addressed.
Academic Editor: Totaro Imasaka
Appl. Sci. 2015, 5(4), 1484-1493;
Received: 8 October 2015 / Revised: 14 November 2015 / Accepted: 24 November 2015 / Published: 30 November 2015
(This article belongs to the Section Optics and Lasers)
We present a numerical solution for complete population inversion in a four-level ladder system obtained by using a full π-pulse illumination scheme with resonant ultrashort phase-locked Gaussian laser pulses. We find that a set of pulse areas such as √3π , √2π , and √3π completely inverts the four-level system considering identical effective dipole coupling coefficients. The solution is consistent provided the involved electric fields are not too strong and it is amply accurate also in the case of diverse transition dipole moments. We study the effect of detuning and chirp of the laser pulses on the complete population inversion using the level structure of atomic sodium interacting with ps and fs pulses as an example. Our result opens the door for multiple applications such as efficient ultrashort pulse lasing in the UV or the engineering of quantum states for quantum computing. View Full-Text
Keywords: ultrashort pulses; coherent control; quantum computing ultrashort pulses; coherent control; quantum computing
Show Figures

Graphical abstract

MDPI and ACS Style

Serrat, C.; Corbera, M.; Afa, J. Trichromatic π-Pulse for Ultrafast Total Inversion of a Four-Level Ladder System. Appl. Sci. 2015, 5, 1484-1493.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

Search more from Scilit
Back to TopTop