Confinement narrowing of the R(0) line in the 13CO fundamental band broadened by helium from room temperature down to 40 K

被引：16

作者：

Henry, A

Claveau, C

Valentin, A

Hurtmans, D

Mantz, AW

机构：

[1] Univ Paris 06, CNRS, Lab Phys Mol & Applicat, F-75252 Paris 05, France

[2] Free Univ Brussels, Lab Chim Phys Mol, CP 160 09, B-1050 Brussels, Belgium

[3] Connecticut Coll, Dept Phys Astron & Geophys, New London, CT 06320 USA

来源：

JOURNAL OF MOLECULAR SPECTROSCOPY | 2002年 / 214卷 / 01期

基金：

美国国家航空航天局;

关键词：

tunable diode laser; line narrowing; carbon monoxide; low temperature;

D O I：

10.1006/jmsp.2002.8576

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The R(0) line profile of the (CO)-C-13 fundamental band is studied at low concentration in helium from room temperature (296.7 K) to 40 K. A narrowing effect due to molecular confinement (Dicke effect) is observed and analyzed using the Galatry soft collision model. The narrowing parameter is found to be in good agreement with the dynamic friction coefficient deduced from the diffusion coefficient over the entire temperature range. (C) 2002 Elsevier Science (USA).

引用

页码：28 / 34

页数：7

共 33 条

[1] Pressure broadening and line shift measurements of carbon monoxide in collision with helium from 1 to 600 K [J].

Beaky, MM ;

Goyette, TM ;

DeLucia, FC .

JOURNAL OF CHEMICAL PHYSICS, 1996, 105 (10) :3994-4004

[2] DIRECT MEASUREMENTS OF N-2 BROADENED LINEWIDTHS IN THE CO FUNDAMENTAL AT LOW-TEMPERATURES [J].

BOUANICH, JP ;

FARRENQ, R ;

BRODBECK, C .

CANADIAN JOURNAL OF PHYSICS, 1983, 61 (02) :192-197

[3] Observation of strong hidden lines in the infrared spectrum of the CO-He complex [J].

Chan, MC ;

McKellar, ARW .

JOURNAL OF CHEMICAL PHYSICS, 1996, 105 (18) :7910-7914

[4] INFRARED-SPECTRUM AND POTENTIAL-ENERGY SURFACE OF HE-CO [J].

CHUAQUI, CE ;

LEROY, RJ ;

MCKELLAR, ARW .

JOURNAL OF CHEMICAL PHYSICS, 1994, 101 (01) :39-61

[5] Testing lineshape models:: Measurements for υ=1-0 CO broadened by He and Ar [J].

Duggan, P ;

Sinclair, PM ;

Berman, R ;

May, AD ;

Drummond, JR .

JOURNAL OF MOLECULAR SPECTROSCOPY, 1997, 186 (01) :90-98

[6] SIMULTANEOUS EFFECT OF DOPPLER AND FOREIGN GAS BROADENING ON SPECTRAL LINES [J].

GALATRY, L .

PHYSICAL REVIEW, 1961, 122 (04) :1218-&

[7] The rovibrational structure of the He-CO complex from a model interaction potential [J].

Gianturco, FA ;

Paesani, F .

MOLECULAR PHYSICS, 2001, 99 (09) :689-698

[8] ROTATIONAL EXCITATION OF CO BY COLLISIONS WITH HE, H, AND H2 UNDER CONDITIONS IN INTERSTELLAR CLOUDS [J].

GREEN, S ;

THADDEUS, P .

ASTROPHYSICAL JOURNAL, 1976, 205 (03) :766-785

[9] Confinement narrowing and absorber speed dependent broadening effects on CO lines in the fundamental band perturbed by Xe, Ar, Ne, He and N-2 [J].

Henry, A ;

Hurtmans, D ;

MargottinMaclou, M ;

Valentin, A .

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 1996, 56 (05) :647-671

[10] TUNABLE DIODE-LASER SPECTROMETER WITH CONTROLLED PHASE FREQUENCY EMISSION [J].

HENRY, A ;

VALENTIN, A ;

MARGOTTINMACLOU, M ;

RACHET, F .

JOURNAL OF MOLECULAR SPECTROSCOPY, 1994, 166 (01) :41-55

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