Cold-atom clock based on a diffractive optic

R. Elvin; G. W. Hoth; M. Wright; B. Lewis; J. P. McGilligan; A. S. Arnold; P. F. Griffin; E. Riis

doi:10.1364/OE.378632

Cold-atom clock based on a diffractive optic

R. Elvin, G. W. Hoth, M. Wright, B. Lewis, J. P. McGilligan, A. S. Arnold, P. F. Griffin, E. Riis

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

39 Citations (Scopus)

63 Downloads (Pure)

Abstract

Clocks based on cold atoms offer unbeatable accuracy and long-term stability, but their use in portable quantum technologies is hampered by a large physical footprint. Here, we use the compact optical layout of a grating magneto-optical trap (gMOT) for a precise frequency reference. The gMOT collects 10 ^{7 87}Rb atoms, which are subsequently cooled to 20 µK in optical molasses. We optically probe the microwave atomic ground-state splitting using lin┴lin polarised coherent population trapping and a Raman-Ramsey sequence. With ballistic drop distances of only 0.5 mm, the measured short-term fractional frequency stability is 2 × 10 ⁻¹¹/√τ.

Original language	English
Pages (from-to)	38359-38366
Number of pages	8
Journal	Optics Express
Volume	27
Issue number	26
DOIs	https://doi.org/10.1364/OE.378632
Publication status	Published - 18 Dec 2019

Keywords

physics.atom-ph
cold atoms
quantum technologies
grating magneto-optical trap

Access to Document

10.1364/OE.378632Licence: CC BY 4.0

Elvin-etal-OE-2019-A-cold-atom-clock-based-on-a-diffractive-opticFinal published version, 560 KBLicence: CC BY 4.0

Aidan Arnold
- aidan.arnoldstrath.acuk
- Physics - Reader
- SUPA
Person: Academic

UK Quantum Technology Hub for Sensors and Metrology
Hastie, J. (Principal Investigator), Arnold, A. (Co-investigator), Griffin, P. (Co-investigator), Kemp, A. (Co-investigator) & Riis, E. (Co-investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/12/14 → 30/11/19
Project: Research
Miniaturised cold atom clocks
Riis, E. (Principal Investigator)
Defence Science and Technology Laboratory DSTL MoD
1/10/14 → 31/03/18
Project: Research - Studentship

Data for: "A cold-atom clock based on a diffractive optic"
Elvin, R. (Creator), Arnold, A. (Contributor), Griffin, P. (Contributor), Hoth, G. (Contributor), Riis, E. (Contributor), McGilligan, J. P. (Contributor), Wright, M. (Contributor) & Lewis, B. (Contributor), University of Strathclyde, 16 Dec 2019
DOI: 10.15129/4b93bf4c-84fe-4a0b-8e85-871884aefa6e
Dataset

Cite this

@article{fc652d142d204281b9b93aedb8132382,

title = "Cold-atom clock based on a diffractive optic",

abstract = "Clocks based on cold atoms offer unbeatable accuracy and long-term stability, but their use in portable quantum technologies is hampered by a large physical footprint. Here, we use the compact optical layout of a grating magneto-optical trap (gMOT) for a precise frequency reference. The gMOT collects 10 7 87Rb atoms, which are subsequently cooled to 20 µK in optical molasses. We optically probe the microwave atomic ground-state splitting using lin┴lin polarised coherent population trapping and a Raman-Ramsey sequence. With ballistic drop distances of only 0.5 mm, the measured short-term fractional frequency stability is 2 × 10 −11/√τ. ",

keywords = "physics.atom-ph, cold atoms, quantum technologies, grating magneto-optical trap",

author = "R. Elvin and Hoth, {G. W.} and M. Wright and B. Lewis and McGilligan, {J. P.} and Arnold, {A. S.} and Griffin, {P. F.} and E. Riis",

year = "2019",

month = dec,

day = "18",

doi = "10.1364/OE.378632",

language = "English",

volume = "27",

pages = "38359--38366",

journal = "Optics Express",

issn = "1094-4087",

publisher = "Optical Society of America",

number = "26",

}

TY - JOUR

T1 - Cold-atom clock based on a diffractive optic

AU - Elvin, R.

AU - Hoth, G. W.

AU - Wright, M.

AU - Lewis, B.

AU - McGilligan, J. P.

AU - Arnold, A. S.

AU - Griffin, P. F.

AU - Riis, E.

PY - 2019/12/18

Y1 - 2019/12/18

N2 - Clocks based on cold atoms offer unbeatable accuracy and long-term stability, but their use in portable quantum technologies is hampered by a large physical footprint. Here, we use the compact optical layout of a grating magneto-optical trap (gMOT) for a precise frequency reference. The gMOT collects 10 7 87Rb atoms, which are subsequently cooled to 20 µK in optical molasses. We optically probe the microwave atomic ground-state splitting using lin┴lin polarised coherent population trapping and a Raman-Ramsey sequence. With ballistic drop distances of only 0.5 mm, the measured short-term fractional frequency stability is 2 × 10 −11/√τ.

AB - Clocks based on cold atoms offer unbeatable accuracy and long-term stability, but their use in portable quantum technologies is hampered by a large physical footprint. Here, we use the compact optical layout of a grating magneto-optical trap (gMOT) for a precise frequency reference. The gMOT collects 10 7 87Rb atoms, which are subsequently cooled to 20 µK in optical molasses. We optically probe the microwave atomic ground-state splitting using lin┴lin polarised coherent population trapping and a Raman-Ramsey sequence. With ballistic drop distances of only 0.5 mm, the measured short-term fractional frequency stability is 2 × 10 −11/√τ.

KW - physics.atom-ph

KW - cold atoms

KW - quantum technologies

KW - grating magneto-optical trap

U2 - 10.1364/OE.378632

DO - 10.1364/OE.378632

M3 - Article

SN - 1094-4087

VL - 27

SP - 38359

EP - 38366

JO - Optics Express

JF - Optics Express

IS - 26

ER -

Cold-atom clock based on a diffractive optic

Abstract

Keywords

Access to Document

Fingerprint

Profiles

Aidan Arnold

Projects

UK Quantum Technology Hub for Sensors and Metrology

Miniaturised cold atom clocks

Datasets

Data for: "A cold-atom clock based on a diffractive optic"

Cite this