Near-infrared Rayleigh scattering of SF6

被引：3

作者：

Snels, Marcel ^{[1
]}

Stefani, Stefania ^{[2
]}

Piccioni, Giuseppe ^{[2
]}

机构：

[1] Consiglio Nazl Ric CNR, Ist Sci Atmosfera & Clima ISAC, Rome, Italy

[2] Ist Nazl AstroFis INAF, Ist Astrofis & Planetol Spaziali IAPS, Rome, Italy

来源：

MOLECULAR PHYSICS | 2013年 / 111卷 / 14-15期

关键词：

Rayleigh scattering; sulphur hexafluoride; collision-induced absorption; cavity ring down; near-infrared; COLLISION-INDUCED ABSORPTION; INTEGRATED-INTENSITIES; SULFUR-HEXAFLUORIDE; REFRACTIVE-INDEX; BANDS; CO2; TEMPERATURE; DENSITY; GASES; CH4;

D O I：

10.1080/00268976.2013.807365

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Cavity ring-down measurements have been performed on sulphur hexafluoride, in order to determine the extinction in the pressure range from 0 to 20 bar at 20 degrees C (293 K), by using a tunable continuous wave distributed feedback diode laser emitting around 1180 nm. The cavity loss rate has been found to have both a linear dependence and a quadratic dependence on the gas density. While the linear component has been identified with the Rayleigh scattering, the quadratic component is likely due to collision-induced processes. The Rayleigh scattering cross section at 1180 nm has been determined as (1.25 +/- 0.18) x10(-27)cm(2) and has been compared with Rayleigh scattering cross sections measured in the deep-ultraviolet and visible spectral region.

引用

页码：2314 / 2319

页数：6

共 22 条

[1] Simultaneous measurement of dielectric constant and refractive index of SF6 and CO2 as a function of pressure
Adjouri, C
Balu, N
Obriot, J
Bose, TK
[J]. JOURNAL OF CHEMICAL PHYSICS, 1997, 106 (18) : 7491 - 7497
[2] Cavity ring-down spectroscopy: Experimental schemes and applications
Berden, G
Peeters, R
Meijer, G
[J]. INTERNATIONAL REVIEWS IN PHYSICAL CHEMISTRY, 2000, 19 (04) : 565 - 607
[3] The 1.10- and 1.18-μm nightside windows of Venus observed by SPICAV-IR aboard Venus Express
Bezard, Bruno
Fedorova, Anna
Bertaux, Jean-Loup
Rodin, Alexander
Korablev, Oleg
[J]. ICARUS, 2011, 216 (01) : 173 - 183
[4] COMPARISON OF DIELECTRIC AND REFRACTIVE VIRIAL-COEFFICIENTS AND COLLISION-INDUCED ABSORPTION-BANDS
BIRNBAUM, G
BOSE, TK
[J]. JOURNAL OF CHEMICAL PHYSICS, 1979, 71 (01) : 17 - 19
[5] THE FORBIDDEN FAR-INFRARED NU-6 BAND OF SF6
CHAPADOS, C
BIRNBAUM, G
[J]. JOURNAL OF MOLECULAR SPECTROSCOPY, 1984, 105 (01) : 206 - 214
[6] INFRARED-ABSORPTION OF SF6 FROM 32-CM-1 TO 3000-CM-1 IN THE GASEOUS AND LIQUID STATES
CHAPADOS, C
[J]. JOURNAL OF MOLECULAR SPECTROSCOPY, 1988, 132 (02) : 323 - 351
[7] Clough S., 1989, ATMOS RES, V23, P229, DOI DOI 10.1016/0169-8095(89)90020-3
[8] SF6 GAS INTEGRATED-INTENSITIES AS A FUNCTION OF DENSITY
DELAYE, CT
THOMAS, ME
[J]. JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 1992, 48 (03) : 307 - 313
[9] FORBIDDEN RAMAN BANDS OF SF6 - COLLISION-INDUCED RAMAN-SCATTERING
HOLZER, W
OUILLON, R
[J]. CHEMICAL PHYSICS LETTERS, 1974, 24 (04) : 589 - 593
[10] Deep-UV Rayleigh scattering of N2, CH4 and SF6
Ityaksov, D.
Linnartz, H.
Ubachs, W.
[J]. MOLECULAR PHYSICS, 2008, 106 (21-23) : 2471 - 2479

← 1 2 3 →