A driven, trapped, laser cooled ion cloud: A forced damped oscillator

M. A. Van Eijkelenborg; K. Dholakia; M. E.M. Storkey; D. M. Segal; R. C. Thompson

doi:10.1016/S0030-4018(98)00587-2

A driven, trapped, laser cooled ion cloud: A forced damped oscillator

M. A. Van Eijkelenborg, K. Dholakia, M. E.M. Storkey, D. M. Segal, R. C. Thompson

Department of Physics

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

We have studied the efficiency of laser cooling on clouds of magnesium and beryllium ions held in a Penning trap. We applied a driving voltage to the trap electrodes to drive the ions near one of their motional resonances, and studied the difference between the phase of the applied driving voltage and that of the resultant ion motion. Just as expected for a forced damped oscillator, we find that the phase difference changes by π when the driving frequency is scanned through resonance. From the width of the measured phase change curves we determine the relative strength of the laser cooling on each of the three characteristic ion motions.

Original language	English
Pages (from-to)	169-176
Number of pages	8
Journal	Optics Communications
Volume	159
Issue number	1-3
DOIs	https://doi.org/10.1016/S0030-4018(98)00587-2
Publication status	Published - 1999

Bibliographical note

Funding Information:
This work was supported by the EPSRC. We would like to thank J. Vincent, J. Höffges, J-L. Hernandez-Pozos, and P. Glicofrides for experimental assistance. M.A van Eijkelenborg would like to thank the Netherlands Organization for Scientific Research (NWO) for support.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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10.1016/S0030-4018(98)00587-2

Cite this

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title = "A driven, trapped, laser cooled ion cloud: A forced damped oscillator",

abstract = "We have studied the efficiency of laser cooling on clouds of magnesium and beryllium ions held in a Penning trap. We applied a driving voltage to the trap electrodes to drive the ions near one of their motional resonances, and studied the difference between the phase of the applied driving voltage and that of the resultant ion motion. Just as expected for a forced damped oscillator, we find that the phase difference changes by π when the driving frequency is scanned through resonance. From the width of the measured phase change curves we determine the relative strength of the laser cooling on each of the three characteristic ion motions.",

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note = "Funding Information: This work was supported by the EPSRC. We would like to thank J. Vincent, J. H{\"o}ffges, J-L. Hernandez-Pozos, and P. Glicofrides for experimental assistance. M.A van Eijkelenborg would like to thank the Netherlands Organization for Scientific Research (NWO) for support.",

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doi = "10.1016/S0030-4018(98)00587-2",

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T2 - A forced damped oscillator

AU - Van Eijkelenborg, M. A.

AU - Dholakia, K.

AU - Storkey, M. E.M.

AU - Segal, D. M.

AU - Thompson, R. C.

N1 - Funding Information: This work was supported by the EPSRC. We would like to thank J. Vincent, J. Höffges, J-L. Hernandez-Pozos, and P. Glicofrides for experimental assistance. M.A van Eijkelenborg would like to thank the Netherlands Organization for Scientific Research (NWO) for support.

PY - 1999

Y1 - 1999

N2 - We have studied the efficiency of laser cooling on clouds of magnesium and beryllium ions held in a Penning trap. We applied a driving voltage to the trap electrodes to drive the ions near one of their motional resonances, and studied the difference between the phase of the applied driving voltage and that of the resultant ion motion. Just as expected for a forced damped oscillator, we find that the phase difference changes by π when the driving frequency is scanned through resonance. From the width of the measured phase change curves we determine the relative strength of the laser cooling on each of the three characteristic ion motions.

AB - We have studied the efficiency of laser cooling on clouds of magnesium and beryllium ions held in a Penning trap. We applied a driving voltage to the trap electrodes to drive the ions near one of their motional resonances, and studied the difference between the phase of the applied driving voltage and that of the resultant ion motion. Just as expected for a forced damped oscillator, we find that the phase difference changes by π when the driving frequency is scanned through resonance. From the width of the measured phase change curves we determine the relative strength of the laser cooling on each of the three characteristic ion motions.

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ER -

A driven, trapped, laser cooled ion cloud: A forced damped oscillator

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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