Non-resonant dynamic stark control of vibrational motion with optimized laser pulses

Esben Folger Thomas, Niels Engholm Henriksen

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

The term dynamic Stark control (DSC) has been used to describe methods of quantum control related to the dynamic Stark effect, i.e., a time-dependent distortion of energy levels. Here, we employ analytical models that present clear and concise interpretations of the principles behind DSC. Within a linearly forced harmonic oscillator model of vibrational excitation, we show how the vibrational amplitude is related to the pulse envelope, and independent of the carrier frequency of the laser pulse, in the DSC regime. Furthermore, we shed light on the DSC regarding the construction of optimal pulse envelopes - from a time-domain as well as a frequency-domain perspective. Finally, in a numerical study beyond the linearly forced harmonic oscillator model, we show that a pulse envelope can be constructed such that a vibrational excitation into a specific excited vibrational eigenstate is accomplished. The pulse envelope is constructed such that high intensities are avoided in order to eliminate the process of ionization.
Original languageEnglish
Article number244307
JournalJournal of Chemical Physics
Volume144
Number of pages10
ISSN0021-9606
DOIs
Publication statusPublished - 2016

Keywords

  • Stark effect
  • Oscillators
  • Polarizability
  • Polarization
  • Ground states

Cite this

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title = "Non-resonant dynamic stark control of vibrational motion with optimized laser pulses",
abstract = "The term dynamic Stark control (DSC) has been used to describe methods of quantum control related to the dynamic Stark effect, i.e., a time-dependent distortion of energy levels. Here, we employ analytical models that present clear and concise interpretations of the principles behind DSC. Within a linearly forced harmonic oscillator model of vibrational excitation, we show how the vibrational amplitude is related to the pulse envelope, and independent of the carrier frequency of the laser pulse, in the DSC regime. Furthermore, we shed light on the DSC regarding the construction of optimal pulse envelopes - from a time-domain as well as a frequency-domain perspective. Finally, in a numerical study beyond the linearly forced harmonic oscillator model, we show that a pulse envelope can be constructed such that a vibrational excitation into a specific excited vibrational eigenstate is accomplished. The pulse envelope is constructed such that high intensities are avoided in order to eliminate the process of ionization.",
keywords = "Stark effect, Oscillators, Polarizability, Polarization, Ground states",
author = "Thomas, {Esben Folger} and Henriksen, {Niels Engholm}",
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language = "English",
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Non-resonant dynamic stark control of vibrational motion with optimized laser pulses. / Thomas, Esben Folger; Henriksen, Niels Engholm.

In: Journal of Chemical Physics, Vol. 144, 244307, 2016.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Non-resonant dynamic stark control of vibrational motion with optimized laser pulses

AU - Thomas, Esben Folger

AU - Henriksen, Niels Engholm

PY - 2016

Y1 - 2016

N2 - The term dynamic Stark control (DSC) has been used to describe methods of quantum control related to the dynamic Stark effect, i.e., a time-dependent distortion of energy levels. Here, we employ analytical models that present clear and concise interpretations of the principles behind DSC. Within a linearly forced harmonic oscillator model of vibrational excitation, we show how the vibrational amplitude is related to the pulse envelope, and independent of the carrier frequency of the laser pulse, in the DSC regime. Furthermore, we shed light on the DSC regarding the construction of optimal pulse envelopes - from a time-domain as well as a frequency-domain perspective. Finally, in a numerical study beyond the linearly forced harmonic oscillator model, we show that a pulse envelope can be constructed such that a vibrational excitation into a specific excited vibrational eigenstate is accomplished. The pulse envelope is constructed such that high intensities are avoided in order to eliminate the process of ionization.

AB - The term dynamic Stark control (DSC) has been used to describe methods of quantum control related to the dynamic Stark effect, i.e., a time-dependent distortion of energy levels. Here, we employ analytical models that present clear and concise interpretations of the principles behind DSC. Within a linearly forced harmonic oscillator model of vibrational excitation, we show how the vibrational amplitude is related to the pulse envelope, and independent of the carrier frequency of the laser pulse, in the DSC regime. Furthermore, we shed light on the DSC regarding the construction of optimal pulse envelopes - from a time-domain as well as a frequency-domain perspective. Finally, in a numerical study beyond the linearly forced harmonic oscillator model, we show that a pulse envelope can be constructed such that a vibrational excitation into a specific excited vibrational eigenstate is accomplished. The pulse envelope is constructed such that high intensities are avoided in order to eliminate the process of ionization.

KW - Stark effect

KW - Oscillators

KW - Polarizability

KW - Polarization

KW - Ground states

U2 - 10.1063/1.4954663

DO - 10.1063/1.4954663

M3 - Journal article

VL - 144

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

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