Frequency-comb-calibrated Doppler broadening thermometry

被引：10

作者：

Gatti, Davide ^{[1
,2
]}

Mills, Andrew A. ^{[1
]}

De Vizia, Maria Domenica ^{[3
]}

Mohr, Christian ^{[1
]}

Hartl, Ingmar ^{[4
]}

Marangoni, Marco ^{[2
]}

Fermann, Martin ^{[1
]}

Gianfrani, Livio ^{[3
]}

机构：

[1] IMRA Amer Inc, Ann Arbor, MI 48105 USA

[2] Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy

[3] Univ Naples 2, Dipartimento Matemat & Fis, I-81100 Caserta, Italy

[4] DESY, D-22607 Hamburg, Germany

来源：

PHYSICAL REVIEW A | 2013年 / 88卷 / 01期

关键词：

SHAPES; COLLISIONS; PRESSURE;

D O I：

10.1103/PhysRevA.88.012514

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe an implementation of Doppler broadening thermometry based upon a room-temperature continuous-wave quantum cascade laser at 9.07 mu m, coherently phase locked to a thulium optical frequency comb centered at 2 mu m. The thermodynamic temperature is retrieved from the analysis of multiple-line absorption spectra of the NH3 nu(2) band, adopting semiclassical line-shape models and taking into full account the speed dependence of collisional broadening. We demonstrate that a precision of approximately five parts over 10(5) can be reached as a result of the analysis of only 90 absorption spectra, as acquired as a function of the gas pressure.

引用

页数：5

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