DSpace
 

Researchspace >
General science, engineering & technology >
General science, engineering & technology >
General science, engineering & technology >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/4257

Title: Laser coherent control of quantum dynamics at the CSIR: NLC
Authors: Botha, L
Du Plessis, A
Uys, H
de Clercq, L
Keywords: Laser
Quantum dynamics
CSIR National laser center
NLC
CSIR Conference 2010
Issue Date: 1-Sep-2010
Publisher: CSIR
Citation: Botha, L, Du Plessis, A, Uys, H and de Clercq, L. 2010. Laser coherent control of quantum dynamics at the CSIR: NLC. CSIR 3rd Biennial Conference 2010. Science Real and Relevant, CSIR International Convention Centre, Pertoria 30 August – 01 September 2010, South Africa, pp 9
Abstract: Coherent control of quantum dynamics in optical, molecular and biological systems is a rapidly advancing field with many possible applications. This field of study was originally motivated by the goal of steering photoreactions into specific reaction channels. The principle used is controlled interference of the quantum wave functions via time domain shaped ultra-short pulses. The time/frequency product of a pulse is a constant, determined by Heisenberg’s uncertainty principle, therefore, a short time pulse results in a pulse that has a broad frequency bandwidth. In addition, there is a fixed phase relation between the various frequency components that constitute the pulse. Time domain beam shaping allows the modification of the phase and amplitude in the frequency domain of the Fourier transform that constitute the pulse and then transforming back to the time domain. This has the effect of shaping the pulse in time. Various techniques of laser coherent control exist, but they all depend on manipulating the phase and amplitude of the laser pulse, which controls the quantum dynamics via the interference of the quantum wave functions. This paper will give an introduction to coherent control, specifically with regards to optical, molecular and biological systems, as well as an overview of the various coherent control experiments at the CSIR National Laser Centre (NLC).
Description: CSIR 3rd Biennial Conference 2010. Science Real and Relevant, CSIR International Convention Centre, Pertoria 30 August – 01 September 2010, South Africa
URI: http://hdl.handle.net/10204/4257
Appears in Collections:CSIR Conference 2010
General science, engineering & technology

Files in This Item:

File Description SizeFormat
BothaL_2010.pdf239.5 kBAdobe PDFView/Open
View Statistics

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

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback