Optical Ramsey interference and its performance in D1 line excitation in rubidium vapor for implementation of a vapor cell clock

Gour S. Pati; Fredrik K. Fatemi; Mark Bashkansky; Selim M Shahriar

doi:10.1117/12.880779

Optical Ramsey interference and its performance in D1 line excitation in rubidium vapor for implementation of a vapor cell clock

Gour S. Pati, Fredrik K. Fatemi, Mark Bashkansky, Selim M Shahriar

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Scopus citations

Abstract

Pulsed coherent population trapping in atomic vapor provides a convenient method for generating frequency narrowed atomic resonance using Ramsey interference. Here, we present our experimental results showing high-contrast and sub-kilohertz Ramsey interference fringes produced by coherently prepared ⁸⁵Rb atoms using Raman excitation formed in D1 line transitions. A test system for atomic clock has been constructed to measure light shift for both continuous and pulsed Raman excitation cases. Our measurements show that light shift measured using pulsed Raman excitation, is reduced compared to the continuous excitation case. Our ability to measure light shift is currently limited by the resolution of the frequency counter, and performance of the locking electronics used.

Original language	English (US)
Title of host publication	Advances in Slow and Fast Light IV
Volume	7949
DOIs	https://doi.org/10.1117/12.880779
State	Published - May 13 2011
Event	Advances in Slow and Fast Light IV - San Francisco, CA, United States Duration: Jan 23 2011 → Jan 25 2011

Other

Other	Advances in Slow and Fast Light IV
Country/Territory	United States
City	San Francisco, CA
Period	1/23/11 → 1/25/11

Keywords

atomic clock
coherent population trapping
Ramsey interference
rubidium vapor

ASJC Scopus subject areas

Applied Mathematics
Computer Science Applications
Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1117/12.880779

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@inproceedings{f658c284544941629f55857fcafc0f56,

title = "Optical Ramsey interference and its performance in D1 line excitation in rubidium vapor for implementation of a vapor cell clock",

abstract = "Pulsed coherent population trapping in atomic vapor provides a convenient method for generating frequency narrowed atomic resonance using Ramsey interference. Here, we present our experimental results showing high-contrast and sub-kilohertz Ramsey interference fringes produced by coherently prepared 85Rb atoms using Raman excitation formed in D1 line transitions. A test system for atomic clock has been constructed to measure light shift for both continuous and pulsed Raman excitation cases. Our measurements show that light shift measured using pulsed Raman excitation, is reduced compared to the continuous excitation case. Our ability to measure light shift is currently limited by the resolution of the frequency counter, and performance of the locking electronics used.",

keywords = "atomic clock, coherent population trapping, Ramsey interference, rubidium vapor",

author = "Pati, {Gour S.} and Fatemi, {Fredrik K.} and Mark Bashkansky and Shahriar, {Selim M}",

year = "2011",

month = may,

day = "13",

doi = "10.1117/12.880779",

language = "English (US)",

isbn = "9780819484864",

volume = "7949",

booktitle = "Advances in Slow and Fast Light IV",

note = "Advances in Slow and Fast Light IV ; Conference date: 23-01-2011 Through 25-01-2011",

}

TY - GEN

T1 - Optical Ramsey interference and its performance in D1 line excitation in rubidium vapor for implementation of a vapor cell clock

AU - Pati, Gour S.

AU - Fatemi, Fredrik K.

AU - Bashkansky, Mark

AU - Shahriar, Selim M

PY - 2011/5/13

Y1 - 2011/5/13

N2 - Pulsed coherent population trapping in atomic vapor provides a convenient method for generating frequency narrowed atomic resonance using Ramsey interference. Here, we present our experimental results showing high-contrast and sub-kilohertz Ramsey interference fringes produced by coherently prepared 85Rb atoms using Raman excitation formed in D1 line transitions. A test system for atomic clock has been constructed to measure light shift for both continuous and pulsed Raman excitation cases. Our measurements show that light shift measured using pulsed Raman excitation, is reduced compared to the continuous excitation case. Our ability to measure light shift is currently limited by the resolution of the frequency counter, and performance of the locking electronics used.

AB - Pulsed coherent population trapping in atomic vapor provides a convenient method for generating frequency narrowed atomic resonance using Ramsey interference. Here, we present our experimental results showing high-contrast and sub-kilohertz Ramsey interference fringes produced by coherently prepared 85Rb atoms using Raman excitation formed in D1 line transitions. A test system for atomic clock has been constructed to measure light shift for both continuous and pulsed Raman excitation cases. Our measurements show that light shift measured using pulsed Raman excitation, is reduced compared to the continuous excitation case. Our ability to measure light shift is currently limited by the resolution of the frequency counter, and performance of the locking electronics used.

KW - atomic clock

KW - coherent population trapping

KW - Ramsey interference

KW - rubidium vapor

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U2 - 10.1117/12.880779

DO - 10.1117/12.880779

M3 - Conference contribution

AN - SCOPUS:79955768112

SN - 9780819484864

VL - 7949

BT - Advances in Slow and Fast Light IV

T2 - Advances in Slow and Fast Light IV

Y2 - 23 January 2011 through 25 January 2011

ER -

Optical Ramsey interference and its performance in D1 line excitation in rubidium vapor for implementation of a vapor cell clock

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