基于高精细度光腔锁频激光的分子吸收光谱测量

康鹏; 孙羽; 王进; 刘安雯; 胡水明

doi:10.7498/aps.67.20172532

摘要

利用高精细度光腔锁定激光频率，实现了对分子吸收光谱的高精度测量.光腔采用低热膨胀系数的殷钢结构设计和温度控制，实现了腔长度的稳定；通过将激光频率锁定在光腔纵模上，实现了高频率精度和高灵敏度的光腔衰荡光谱测量.利用该装置示范性地测量了二氧化碳分子在6470.42 cm-1附近的光腔衰荡光谱和色散光谱，得到了高精度的谱线参数，并和数据库谱线参数进行了对比.

关键词:

High-resolution and high-sensitivity molecular spectroscopy is widely used in fundamental molecular physics, atmospheric studies, remote sensing, industrial process monitoring, and medical diagnostics. Accurate determination of the parameters of molecule absorption lines, such as line positions, line strengths, line widths and profiles, is essential to support these studies and applications. For example, in order to retrieve the column density of carbon dioxide with a precision of one part per million (ppm), we need laboratory data of line positions with a uncertainty lower than 0.3 MHz and line intensities with a relative accuracy better than 0.5%. Here we present precision spectroscopy of molecules using a laser locked with a high-finesse cavity. The cavity made of invar is thermo-stabilized to reduce the drifts of its length and the cavity mode frequencies. The frequency of the probe laser is locked on a longitudinal mode of the cavity by using the Pound-Drever-Hall method. Another beam from the probe laser, which is frequency shifted and on resonance with a nearby longitudinal mode of the cavity, is used for cavity ring-down spectrum (CRDS) measurement. The CRDS absorption spectrum is recorded by stepping the modulation frequency of a fiber electro-optic modulator in increment of the mode spacing of the cavity. Note that the cavity mode frequencies are shifted due to the dispersion introduced by the absorption lines. Prior to the CRDS measurements, the transmittance spectra of the cavity modes are recorded by scanning the probe laser frequencies over the resonance, which allows the determination of the cavity mode frequencies with an accuracy at a Hz level. Therefore, a dispersion spectrum is also obtained using the same setup by measuring the frequency shifts of cavity modes of the samples with and without absorption. The absolute frequency of the probe laser is determined by an optical frequency comb referring to a GPS-disciplined rubidium clock. The long term drift of beat frequency between the optical frequency comb and the probe laser is measured to be about 1.8 MHz per hour, which is consistent with the thermal expansion of the cavity under a temperature drift of 50 mK. The performance of the spectrometer is demonstrated by measuring the Doppler-broadened spectra of CO2 around 6470.42 cm-1. Precise spectroscopic parameters are derived from both the absorption and dispersion spectra recorded by the same spectrometer. The line position is determined with an accuracy of 0.18 MHz, which is over one order of magnitude better than those given in previous studies and spectral databases.

Keywords:

作者及机构信息

1.
中国科学技术大学, 合肥微尺度物质科学国家实验室, 合肥 230026

通信作者: 胡水明, smhu@ustc.edu.cn

基金项目: 国家自然科学基金（批准号：21688102，21427804）资助的课题.

Authors and contacts

1.
Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China

Corresponding author: Hu Shui-Ming, smhu@ustc.edu.cn

Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 21688102, 21427804).

参考文献

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[31]	Gatti D, Sala T, Gotti R, Cocola L, Poletto L, Prevedelli M, Laporta P, Marangoni M 2015 J. Chem. Phys. 142 074201
[32]	Martinez R Z, Metsala M, Vaittinen O, Lantta T, Halonen L 2006 J. Opt. Soc. Am. B 23 727
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[34]	Cygan A, Lisak D, Maslowski P, Bielska K, Wojtewicz S, Domyslawska J, Trawinski R S, Ciurylo R, Abe H, Hodges J T 2011 Rev. Sci. Instrum. 82 063107
[35]	Wang J, Sun Y R, Tao L G, Liu A W, Hua T P, Meng F, Hu S M 2017 Rev. Sci. Instrum. 88 043108
[36]	Wang J, Sun Y R, Tao L G, Liu A W, Hu S M 2017 J. Chem. Phys. 147 091103
[37]	Chen B, Sun Y R, Zhou Z Y, Chen J, Liu A W, Hu S M 2014 Appl. Opt. 53 7716
[38]	Cygan A, Lisak D, Morzynski P, Bober M, Zawada M, Pazderski E, Ciurylo R 2013 Opt. Express 21 29744
[39]	Cygan A, Wcislo P, Wojtewicz S, Maslowski P, Hodges J T, Ciurylo R, Lisak D 2015 Opt. Express 23 14472
[40]	Cygan A, Wojtewicz S, Zaborowski M, Wcislo P, Guo R M, Ciurylo R, Lisak D 2016 Meas. Sci. Technol. 27 045501
[41]	Ma W G, Foltynowicz A, Axner O 2008 J. Opt. Soc. Am. B 25 1144
[42]	Toth R A, Brown L R, Miller C E, Devi V M, Benner D C 2006 J. Mol. Spectrosc. 239 243
[43]	ftp://ftp.iao.ru/pub/CDSD-296/[2017-11-27]
[44]	Perevalov B V, Kassi S, Perevalov V I, Tashkun S A, Campargue A 2008 J. Mol. Spectrosc. 252 143

施引文献

[1]	Daussy C, Guinet M, Amy-Klein A, Djerroud K, Hermier Y, Briaudeau S, Borde Ch J, Chardonnet C 2007 Phys. Rev. Lett. 98 250801
[2]	Moretti L, Castrillo A, Fasci E, de Vizia M D, Casa G, Galzerano G, Merlone A, Laporta P, Gianfrani L 2013 Phys. Rev. Lett. 111 060803
[3]	Cheng C F, Wang J, Sun Y R, Tan Y, Kang P, Hu S M 2015 Metrologia 52 S385
[4]	Morville J, Chenevier M, Kachanov A A, Romanini D 2002 Proc. SPIE 4485 236
[5]	Dudek J B, Tarsa P B, Velasquez A, Wladyslawski M, Rabinowitz P, Lehmann K K 2003 Anal. Chem. 75 4599
[6]	Crosson E R 2008 Appl. Phys. B 92 403
[7]	Chen B, Kang P, Li J Y, He X L, Liu A W, Hu S M 2015 Chin. J. Chem. Phys. 28 6
[8]	Rothman L S, Gordon I E, Babikov Y, Barbe A, Benner D C, Bernath P F, Birk M, Bizzocchi L, Boudon V, Brown L R, Campargue A, Chance K, Cohen E A, Coudert L H, Devi V M, Drouin B J, Fayt A, Flaud J M, Gamache R R, Harrison J J, Hartmann J M, Hill C, Hodges J T, Jacquemart D, Jolly A, Lamouroux J, Le Roy R J, Li G, Long D A, Lyulin O M, Mackie C J, Massie S T, Mikhailenko S, Muller H S P, Naumenko O V, Nikitin A V, Orphal J, Perevalov V, Perrin A, Polovtseva E R, Richard C, Smith M A H, Starikova E, Sung K, Tashkun S, Tennyson J, Toon G C, Tyuterev V G, Wagner G 2013 J. Quant. Spectrosc. Radiat. Transf. 130 4
[9]	Jiang J, Bernard J E, Madej A A, Czajkowski A, Drissler S, Jones D J 2007 J. Opt. Soc. Am. B 24 2727
[10]	Madej A A, Alcock A J, Czajkowski A, Bernard J E, Chepurov S 2006 J. Opt. Soc. Am. B 23 2200
[11]	Okubo S, Nakayama H, Iwakuni K, Inaba H, Sasada H 2011 Opt. Express 19 23878
[12]	Robichaud D J, Hodges J T, Maslowski P, Yeung L Y, Okumura M, Miller C E, Brown L R 2008 J. Mol. Spectrosc. 251 27
[13]	Swann W C, Gilbert S L 2002 J. Opt. Soc. Am. B 19 2461
[14]	Takahata K, Kobayashi T, Sasada H, Nakajima Y, Inaba H, Hong F L 2009 Phys. Rev. A 80 032518
[15]	Titov D V, Svedhem H, Mccoy D, Lebreton J P, Barabash S, Bertaux J L, Drossart P, Formisano V, Haeusler B, Korablev O I, Markiewicz W, Neveance D, Petzold M, Piccioni G, Zhang T L, Taylor F W, Lellouch E, Koschny D, Witasse O, Warhaut M, Acomazzo A, Rodrigues-Cannabal J, Fabrega J, Schirmann T, Clochet A, Coradini M 2006 Cosmic. Res. 44 334
[16]	Ammannito E, Filacchione G, Coradini A, Capaccioni F, Piccioni G, de Sanctis M C, Dami M, Barbis A 2006 Rev. Sci. Instrum. 77 093109
[17]	Graf J E, Zurek R W, Erickson J K, Jai B, Johnston M D, de Paula R 2007 Acta Astronaut. 61 44
[18]	Krasnopolsky V A 2006 Icarus 185 153
[19]	Bailey J, Simpson A, Crisp D 2007 Publ. Astron. Soc. Pac. 119 228
[20]	Butz A, Guerlet S, Hasekamp O, Schepers D, Galli A, Aben I, Frankenberg C, Hartmann J M, Tran H, Kuze A, Keppel-Aleks G, Toon G, Wunch D, Wennberg P, Deutscher N, Griffith D, Macatangay R, Messerschmidt J, Notholt J, Warneke T 2011 Geophys. Res. Lett. 38 L14812
[21]	Crisp D, Atlas R M, Breon F M, Brown L R, Burrows J P, Ciais P, Connor B J, Doney S C, Fung I Y, Jacob D J, Miller C E, O'Brien D, Pawson S, Randerson J T, Rayner P, Salawitch R J, Sander S P, Sen B, Stephens G L, Tans P P, Toon G C, Wennberg P O, Wofsy S C, Yung Y L, Kuang Z, Chudasama B, Sprague G, Weiss B, Pollock R, Kenyon D, Schroll S 2004 Adv. Space. Res. Ser. 34 700
[22]	Zhang H, Lin C, Zheng Y Q, Wang W Q, Tian L F, Liu D B, Li S 2016 J. Appl. Remote. Sens. 10 024003
[23]	Miller C E, Brown L R, Toth R A, Benner D C, Devi V M 2005 C. R. Phys. 6 876
[24]	Miller C E, Crisp D, de Cola P L, Olsen S C, Randerson J T, Michalak A M, Alkhaled A, Rayner P, Jacob D J, Suntharalingam P, Jones D B A, Denning A S, Nicholls M E, Doney S C, Pawson S, Boesch H, Connor B J, Fung I Y, O'Brien D, Salawitch R J, Sander S P, Sen B, Tans P, Toon G C, Wennberg P O, Wofsy S C, Yung Y L, Law R M 2007 J. Geophys. Res. Atmos. 112 D10314
[25]	Boudjaadar D, Mandin J Y, Dana V, Picque N, Guelachvili G 2006 J. Mol. Spectrosc. 236 158
[26]	Jacquemart D, Borkov Y G, Lyulin O M, Tashkun S A, Perevalov V I 2015 J. Quant. Spectrosc. Radiat. Transf. 160 1
[27]	Karlovets E V, Campargue A, Mondelain D, Beguier S, Kassi S, Tashkun S A, Perevalov V I 2013 J. Quant. Spectrosc. Radiat. Transf. 130 116
[28]	O'keefe A, Deacon D A G 1988 Rev. Sci. Instrum. 59 2544
[29]	Gagliardi G, Loock H P 2014 Cavity Enhanced Spectroscopy and Sensing (Berlin:Springer) pp1-60
[30]	Pan H, Cheng C F, Sun Y R, Gao B, Liu A W, Hu S M 2011 Rev. Sci. Instrum. 82 103110
[31]	Gatti D, Sala T, Gotti R, Cocola L, Poletto L, Prevedelli M, Laporta P, Marangoni M 2015 J. Chem. Phys. 142 074201
[32]	Martinez R Z, Metsala M, Vaittinen O, Lantta T, Halonen L 2006 J. Opt. Soc. Am. B 23 727
[33]	Hodges J T, Layer H P, Miller W W, Scace G E 2004 Rev. Sci. Instrum. 75 849
[34]	Cygan A, Lisak D, Maslowski P, Bielska K, Wojtewicz S, Domyslawska J, Trawinski R S, Ciurylo R, Abe H, Hodges J T 2011 Rev. Sci. Instrum. 82 063107
[35]	Wang J, Sun Y R, Tao L G, Liu A W, Hua T P, Meng F, Hu S M 2017 Rev. Sci. Instrum. 88 043108
[36]	Wang J, Sun Y R, Tao L G, Liu A W, Hu S M 2017 J. Chem. Phys. 147 091103
[37]	Chen B, Sun Y R, Zhou Z Y, Chen J, Liu A W, Hu S M 2014 Appl. Opt. 53 7716
[38]	Cygan A, Lisak D, Morzynski P, Bober M, Zawada M, Pazderski E, Ciurylo R 2013 Opt. Express 21 29744
[39]	Cygan A, Wcislo P, Wojtewicz S, Maslowski P, Hodges J T, Ciurylo R, Lisak D 2015 Opt. Express 23 14472
[40]	Cygan A, Wojtewicz S, Zaborowski M, Wcislo P, Guo R M, Ciurylo R, Lisak D 2016 Meas. Sci. Technol. 27 045501
[41]	Ma W G, Foltynowicz A, Axner O 2008 J. Opt. Soc. Am. B 25 1144
[42]	Toth R A, Brown L R, Miller C E, Devi V M, Benner D C 2006 J. Mol. Spectrosc. 239 243
[43]	ftp://ftp.iao.ru/pub/CDSD-296/[2017-11-27]
[44]	Perevalov B V, Kassi S, Perevalov V I, Tashkun S A, Campargue A 2008 J. Mol. Spectrosc. 252 143

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