High-resolution laser excitation spectroscopy of the (B)over-tilde(2)Sigma(+)-(X)over-tilde(2)Sigma(+) system of jet-cooled SrOD

C  Zhao; P G  Hajigeorgiou; P F  Bernath; J W  Hepburn

High-resolution laser excitation spectroscopy of the (B)over-tilde(2)Sigma(+)-(X)over-tilde(2)Sigma(+) system of jet-cooled SrOD

C Zhao, P G Hajigeorgiou, P F Bernath, J W Hepburn

Chemistry

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

Abstract

The high-resolution laser excitation spectrum of the 001-000 and 000-000 bands of the (B) over tilde(2) Sigma(+)-(X) over tilde(2) Sigma(+) transition of SrOD was recorded. The SrOD molecules were made by pulsed laser ablation of Sr metal followed by reaction with D2O. Sub-Doppler resolution and rotational cooling were achieved by expansion into vacuum and excitation with a cw dye laser perpendicular to the molecular beam. A molecular linewidth of 200 MHz and the lack of spectral congestion allowed a Q branch to be detected. Spin-orbit mixing between the (A) over tilde(2) Pi and (B) over tilde(2) Sigma(+) states caused the unusual appearance of a moderate intensity Q branch in a nominally parallel (2) Sigma(+)-(2) Sigma(+) transition. From the relative intensities of the rotational lines, the ratio of the perpendicular to the parallel transition dipole moment was found to be 0.2 to 0.3. (C) 1996 Academic Press, Inc.

Original language	English
Pages (from-to)	268-273
Number of pages	6
Journal	JOURNAL OF MOLECULAR SPECTROSCOPY
Volume	176
Issue number	2
Publication status	Published - Apr 1996

Keywords

FOURIER-TRANSFORM SPECTROSCOPY
RESONANCE

Cite this

@article{a324150ad6344ffd96ba78ce0b3d69b6,

title = "High-resolution laser excitation spectroscopy of the (B)over-tilde(2)Sigma(+)-(X)over-tilde(2)Sigma(+) system of jet-cooled SrOD",

abstract = "The high-resolution laser excitation spectrum of the 001-000 and 000-000 bands of the (B) over tilde(2) Sigma(+)-(X) over tilde(2) Sigma(+) transition of SrOD was recorded. The SrOD molecules were made by pulsed laser ablation of Sr metal followed by reaction with D2O. Sub-Doppler resolution and rotational cooling were achieved by expansion into vacuum and excitation with a cw dye laser perpendicular to the molecular beam. A molecular linewidth of 200 MHz and the lack of spectral congestion allowed a Q branch to be detected. Spin-orbit mixing between the (A) over tilde(2) Pi and (B) over tilde(2) Sigma(+) states caused the unusual appearance of a moderate intensity Q branch in a nominally parallel (2) Sigma(+)-(2) Sigma(+) transition. From the relative intensities of the rotational lines, the ratio of the perpendicular to the parallel transition dipole moment was found to be 0.2 to 0.3. (C) 1996 Academic Press, Inc.",

keywords = "FOURIER-TRANSFORM SPECTROSCOPY, RESONANCE",

author = "C Zhao and Hajigeorgiou, {P G} and Bernath, {P F} and Hepburn, {J W}",

year = "1996",

month = apr,

language = "English",

volume = "176",

pages = "268--273",

journal = "JOURNAL OF MOLECULAR SPECTROSCOPY",

issn = "0022-2852",

publisher = "Academic Press",

number = "2",

}

TY - JOUR

T1 - High-resolution laser excitation spectroscopy of the (B)over-tilde(2)Sigma(+)-(X)over-tilde(2)Sigma(+) system of jet-cooled SrOD

AU - Zhao, C

AU - Hajigeorgiou, P G

AU - Bernath, P F

AU - Hepburn, J W

PY - 1996/4

Y1 - 1996/4

N2 - The high-resolution laser excitation spectrum of the 001-000 and 000-000 bands of the (B) over tilde(2) Sigma(+)-(X) over tilde(2) Sigma(+) transition of SrOD was recorded. The SrOD molecules were made by pulsed laser ablation of Sr metal followed by reaction with D2O. Sub-Doppler resolution and rotational cooling were achieved by expansion into vacuum and excitation with a cw dye laser perpendicular to the molecular beam. A molecular linewidth of 200 MHz and the lack of spectral congestion allowed a Q branch to be detected. Spin-orbit mixing between the (A) over tilde(2) Pi and (B) over tilde(2) Sigma(+) states caused the unusual appearance of a moderate intensity Q branch in a nominally parallel (2) Sigma(+)-(2) Sigma(+) transition. From the relative intensities of the rotational lines, the ratio of the perpendicular to the parallel transition dipole moment was found to be 0.2 to 0.3. (C) 1996 Academic Press, Inc.

AB - The high-resolution laser excitation spectrum of the 001-000 and 000-000 bands of the (B) over tilde(2) Sigma(+)-(X) over tilde(2) Sigma(+) transition of SrOD was recorded. The SrOD molecules were made by pulsed laser ablation of Sr metal followed by reaction with D2O. Sub-Doppler resolution and rotational cooling were achieved by expansion into vacuum and excitation with a cw dye laser perpendicular to the molecular beam. A molecular linewidth of 200 MHz and the lack of spectral congestion allowed a Q branch to be detected. Spin-orbit mixing between the (A) over tilde(2) Pi and (B) over tilde(2) Sigma(+) states caused the unusual appearance of a moderate intensity Q branch in a nominally parallel (2) Sigma(+)-(2) Sigma(+) transition. From the relative intensities of the rotational lines, the ratio of the perpendicular to the parallel transition dipole moment was found to be 0.2 to 0.3. (C) 1996 Academic Press, Inc.

KW - FOURIER-TRANSFORM SPECTROSCOPY

KW - RESONANCE

M3 - Article

SN - 0022-2852

VL - 176

SP - 268

EP - 273

JO - JOURNAL OF MOLECULAR SPECTROSCOPY

JF - JOURNAL OF MOLECULAR SPECTROSCOPY

IS - 2

ER -