Earth-prints repository, logo   DSpace

About DSpace Software
|earth-prints home page | roma library | bologna library | catania library | milano library | napoli library | palermo library
Please use this identifier to cite or link to this item:

Authors: Settimi, A.*
Editors: Bananej, A.; Laser &Optics Research School
Title: Coherent Control of Stimulated Emission inside one dimensional Photonic Crystals: Strong Coupling regime
Publisher: InTech - open science, open minds
Issue Date: 22-Apr-2015
ISBN: 978-953-51-4187-7
Keywords: Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift
Coherent control of atomic interactions with photons
Photonic bandgap materials
Optical communication systems, multiplexers, and demultiplexers
Abstract: The present book chapter discusses the stimulated emission, in strong coupling regime, of an atom embedded inside a one dimensional (1D) Photonic Band Gap (PBG) cavity which is pumped by two counter-propagating laser beams. Quantum electrodynamics is applied to model the atom-field interaction, by considering the atom as a two level system, the e.m. field as a superposition of normal modes, the coupling in dipole approximation, and the equations of motion in Wigner-Weisskopf and rotating wave approximations. In addition, the Quasi Normal Mode (QNM) approach for an open cavity is adopted, interpreting the local density of states (LDOS) as the local density of probability to excite one QNM of the cavity; and therefore rendering this LDOS dependent on the phase difference of the two laser beams. In this book chapter we demonstrate that the strong coupling regime occurs at high values of the LDOS. In accordance with the results of the literature, the emission probability of the atom decays with an oscillatory behaviour, so that the atomic emission spectrum exhibits two peaks (Rabi splitting). The novelty of this book chapter is that the phase difference of the two laser beams can produce a coherent control of both the oscillations for the atomic emission probability and, as a consequence, of the Rabi splitting in the emission spectrum. Possible criteria to design active delay lines are finally discussed.
Appears in Collections:Book chapters
05.04.99. General or miscellaneous
05.06.99. General or miscellaneous
05.09.99. General or miscellaneous

Files in This Item:

File Description SizeFormatVisibility
Settimi, Photonic Crystals, InTech BOOK CHAPTER.pdfAdobe BOOK CHAPTER888.5 kBAdobe PDFView/Open
Settimi, Photonic Crystals, InTech DRAFTS.docWord DRAFTS648 kBMicrosoft WordView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Share this record




Stumble it!



Valid XHTML 1.0! ICT Support, development & maintenance are provided by CINECA. Powered on DSpace Software. CINECA