Photoassociative spectroscopy of the Cs2 0-g long-range state

A. Fioretti; D. Comparat; C. Drag; C. Amiot; O. Dulieu; F. Masnou-Seeuws; P. Pillet

doi:10.1007/s100530050271

Photoassociative spectroscopy of the Cs₂ 0^-_g long-range state

A. Fioretti, D. Comparat, C. Drag, C. Amiot, O. Dulieu, F. Masnou-Seeuws, P. Pillet

Laboratoire Aimé Cotton

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

Abstract

The photoassociative spectroscopy of the Cs₂ 0^-_g long-range molecular state dissociating into the 6s ²S_1/2 + 6p ²P_3/2 asymptote is performed, using cold cesium atoms in a vapor-cell magneto-optical trap (MOT). Vibrational levels from υ = 0 to υ = 132 are identified, and their rotational structure is well resolved up J = 8 for levels below υ = 74. These data are analyzed in terms of the Rydberg-Klein-Rees (RKR) procedure, and correspond to 99.6% of an effective potential curve with a minimum at 12.36±0.05 Å and a 77.94±0.01 cm^-1 depth. Both ab initio calculations and simple model estimations predict a double-well structure for this potential curve, which cannot be reproduced presently by the RKR approach but which is confirmed by the presence of giant structures in the spectrum. The 1_u(6s ²S_1/2 + 6p ²P_3/2) long-range state is also observed for the first time in Cs₂.

Original language	English
Pages (from-to)	389-403
Number of pages	15
Journal	European Physical Journal D
Volume	5
Issue number	3
DOIs	https://doi.org/10.1007/s100530050271
Publication status	Published - 1 Jan 1999
Externally published	Yes

Access to Document

10.1007/s100530050271

Cite this

@article{75568490dff744cfa168703df162d49d,

title = "Photoassociative spectroscopy of the Cs2 0-g long-range state",

abstract = "The photoassociative spectroscopy of the Cs2 0-g long-range molecular state dissociating into the 6s 2S1/2 + 6p 2P3/2 asymptote is performed, using cold cesium atoms in a vapor-cell magneto-optical trap (MOT). Vibrational levels from υ = 0 to υ = 132 are identified, and their rotational structure is well resolved up J = 8 for levels below υ = 74. These data are analyzed in terms of the Rydberg-Klein-Rees (RKR) procedure, and correspond to 99.6\% of an effective potential curve with a minimum at 12.36±0.05 {\AA} and a 77.94±0.01 cm-1 depth. Both ab initio calculations and simple model estimations predict a double-well structure for this potential curve, which cannot be reproduced presently by the RKR approach but which is confirmed by the presence of giant structures in the spectrum. The 1u(6s 2S1/2 + 6p 2P3/2) long-range state is also observed for the first time in Cs2.",

author = "A. Fioretti and D. Comparat and C. Drag and C. Amiot and O. Dulieu and F. Masnou-Seeuws and P. Pillet",

year = "1999",

month = jan,

day = "1",

doi = "10.1007/s100530050271",

language = "English",

volume = "5",

pages = "389--403",

journal = "European Physical Journal D",

issn = "1434-6060",

number = "3",

}

TY - JOUR

T1 - Photoassociative spectroscopy of the Cs2 0-g long-range state

AU - Fioretti, A.

AU - Comparat, D.

AU - Drag, C.

AU - Amiot, C.

AU - Dulieu, O.

AU - Masnou-Seeuws, F.

AU - Pillet, P.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - The photoassociative spectroscopy of the Cs2 0-g long-range molecular state dissociating into the 6s 2S1/2 + 6p 2P3/2 asymptote is performed, using cold cesium atoms in a vapor-cell magneto-optical trap (MOT). Vibrational levels from υ = 0 to υ = 132 are identified, and their rotational structure is well resolved up J = 8 for levels below υ = 74. These data are analyzed in terms of the Rydberg-Klein-Rees (RKR) procedure, and correspond to 99.6% of an effective potential curve with a minimum at 12.36±0.05 Å and a 77.94±0.01 cm-1 depth. Both ab initio calculations and simple model estimations predict a double-well structure for this potential curve, which cannot be reproduced presently by the RKR approach but which is confirmed by the presence of giant structures in the spectrum. The 1u(6s 2S1/2 + 6p 2P3/2) long-range state is also observed for the first time in Cs2.

AB - The photoassociative spectroscopy of the Cs2 0-g long-range molecular state dissociating into the 6s 2S1/2 + 6p 2P3/2 asymptote is performed, using cold cesium atoms in a vapor-cell magneto-optical trap (MOT). Vibrational levels from υ = 0 to υ = 132 are identified, and their rotational structure is well resolved up J = 8 for levels below υ = 74. These data are analyzed in terms of the Rydberg-Klein-Rees (RKR) procedure, and correspond to 99.6% of an effective potential curve with a minimum at 12.36±0.05 Å and a 77.94±0.01 cm-1 depth. Both ab initio calculations and simple model estimations predict a double-well structure for this potential curve, which cannot be reproduced presently by the RKR approach but which is confirmed by the presence of giant structures in the spectrum. The 1u(6s 2S1/2 + 6p 2P3/2) long-range state is also observed for the first time in Cs2.

U2 - 10.1007/s100530050271

DO - 10.1007/s100530050271

M3 - Article

AN - SCOPUS:0033098281

SN - 1434-6060

VL - 5

SP - 389

EP - 403

JO - European Physical Journal D

JF - European Physical Journal D

IS - 3

ER -

Photoassociative spectroscopy of the Cs2 0-g long-range state

Abstract

Access to Document

Fingerprint

Cite this

Photoassociative spectroscopy of the Cs₂ 0^-_g long-range state