Detection and spectroscopy of OH fundamental vibrational band based on a difference frequency generator at 3 μm

被引：14

作者：

Pesce, G

Rusciano, G

Sasso, A

机构：

[1] Univ Naples Federico II, Dipartimento Sci Fis, I-80126 Naples, Italy

[2] UDR, Ist Nazl Fis Mat, Naples, Italy

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 374卷 / 5-6期

关键词：

D O I：

10.1016/S0009-2614(03)00528-1

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：

We report the detection and spectroscopy of the fundamental vibrational band of the OH radical at 3 mum. The mid-IR radiation was produced by difference frequency generation mixing a Nd-YAG laser and a diode laser (lambda = 0.785 mum). OH detection was demonstrated at high sensitivity by observing a minimum detectable pressure of 0.225 mubar for an optical length of 50 cm. Finally, we identified four OH lines, belonging to two Lambda-doublets, and measured their spectral positions with an accuracy of similar or equal to1.6 x 10(-3) cm(-1). (C) 2003 Elsevier Science B.V. All rights reserved.

引用

收藏

页码：425 / 431

页数：7

相关论文

共 30 条

[1] DIFFERENCE FREQUENCY LASER SPECTROSCOPY OF OH AND OD - SIMULTANEOUS FIT OF THE INFRARED AND MICROWAVE LINES [J].

AMANO, T .

JOURNAL OF MOLECULAR SPECTROSCOPY, 1984, 103 (02) :436-454

[2]

[Anonymous], 2000, INTRO ATMOSPHERIC CH, DOI [DOI 10.1515/9781400841547, 10.1029/01EO00292]

[3] OH laser-induced fluorescence at high pressures: Spectroscopic and two-dimensional measurements exciting the A-X (1,0) transition [J].

Atakan, B ;

Heinze, J ;

Meier, UE .

APPLIED PHYSICS B-LASERS AND OPTICS, 1997, 64 (05) :585-591

[4] OH detection by absorption of frequency-doubled diode laser radiation at 308 nm [J].

Barry, HR ;

Bakowski, B ;

Corner, L ;

Freegarde, T ;

Hawkins, OTW ;

Hancock, G ;

Jacobs, RMJ ;

Peverall, R ;

Ritchie, GAD .

CHEMICAL PHYSICS LETTERS, 2000, 319 (1-2) :125-130

[5] Efficient, single frequency, high repetition rate, PPLN OPO pumped by a prelase Q-switched diode-pumped Nd:YAG laser [J].

Baxter, GW ;

Schlup, P ;

McKinnie, IT .

APPLIED PHYSICS B-LASERS AND OPTICS, 2000, 70 (02) :301-304

[6] SPIN-ORBIT AND SPIN-ROTATION COUPLING IN DOUBLET STATES OF DIATOMIC-MOLECULES [J].

BROWN, JM ;

WATSON, JKG .

JOURNAL OF MOLECULAR SPECTROSCOPY, 1977, 65 (01) :65-74

[7] Detection and spectroscopy of the v1+v3 band of N2O by difference-frequency spectrometer at 3 μm [J].

Bruno, A ;

Pesce, G ;

Rusciano, G ;

Sasso, A .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2002, 58 (11) :2481-2488

[8] Noise characteristics of a high-power ytterbium-doped fibre amplifier at 1083 nm [J].

Cancio, P ;

Zeppini, P ;

De Natale, P ;

Taccheo, S ;

Laporta, P .

APPLIED PHYSICS B-LASERS AND OPTICS, 2000, 70 (06) :763-768

[9] Cavity ring-down spectroscopy of OH radicals in low pressure flame [J].

Cheskis, S ;

Derzy, I ;

Lozovsky, VA ;

Kachanov, A ;

Romanini, D .

APPLIED PHYSICS B-LASERS AND OPTICS, 1998, 66 (03) :377-381

[10] OPTIMUM MOLECULAR-CONSTANTS AND TERM VALUES FOR THE X2PI(UPSILON-LESS-THAN-OR-EQUAL-TO-5) AND A2SIGMA+(UPSILON-LESS-THAN-OR-EQUAL-TO-3) STATES OF OH [J].

COXON, JA .

CANADIAN JOURNAL OF PHYSICS, 1980, 58 (07) :933-949