典型文献
Lamb-dip saturated-absorption cavity ring-down rovibrational molecular spectroscopy in the near-infrared
文献摘要：
The high-detection-sensitivity saturated-absorption cavity ring-down (SCAR) technique is extended to Lamb-dip spectroscopy of rovibrational molecular transitions in the near-infrared region. Frequency-comb-referenced sub-Doppler saturation measurements, performed on the acetylene (ν1+ν3+ν4←ν4) R(14)e line at 6562 cm-1, are analyzed by a SCAR global line profile fitting routine, based on a specially developed theoretical model. Compared to a conventional cavity ring-down evaluation, our approach yields dip profiles with a linewidth freed from saturation broadening effects, reduced by 40%, and a signal-to-noise ratio increased by 90%. Ultimately, an overall (statistical and systematic) fractional uncertainty as low as 7×10-12 is achieved for the absolute line-center frequency. At the same time, our method is also able to accurately infer the linear (non-saturated) behavior of the gas absorption, providing Lamb-dip-based line strength measurements with a relative uncertainty of 0.5%.
文献关键词：
中图分类号：
作者姓名：
Roberto Aiello;Valentina Di Sarno;Maria Giulia Delli Santi;Maurizio De Rosa;Iolanda Ricciardi;Giovanni Giusfredi;Paolo De Natale;Luigi Santamaria;Pasquale Maddaloni
作者机构：
Consiglio Nazionale delle Ricerche-Istituto Nazionale di Ottica, Via Campi Flegrei 34, 80078 Pozzuoli, Italy;Istituto Nazionale di Fisica Nucleare, Sez. di Napoli, Complesso Universitario di M.S. Angelo, Via Cintia, 80126 Napoli, Italy;ppqSense S.r.l., Via Gattinella 20, 50013 Campi Bisenzio, Italy;Consiglio Nazionale delle Ricerche-Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy;Agenzia Spaziale Italiana, Contrada Terlecchia, 75100 Matera, Italy
文献出处：
引用格式：
[1]Roberto Aiello;Valentina Di Sarno;Maria Giulia Delli Santi;Maurizio De Rosa;Iolanda Ricciardi;Giovanni Giusfredi;Paolo De Natale;Luigi Santamaria;Pasquale Maddaloni-.Lamb-dip saturated-absorption cavity ring-down rovibrational molecular spectroscopy in the near-infrared)[J].光子学研究（英文）,2022(08):1803
A类：
rovibrational
B类：
Lamb,dip,saturated,absorption,cavity,ring,down,molecular,spectroscopy,infrared,high,detection,sensitivity,SCAR,technique,extended,transitions,region,Frequency,comb,referenced,sub,Doppler,saturation,measurements,performed,acetylene,1+,3+,analyzed,by,global,fitting,routine,specially,developed,theoretical,model,Compared,conventional,evaluation,our,approach,yields,profiles,linewidth,freed,from,broadening,effects,reduced,signal,noise,increased,Ultimately,overall,statistical,systematic,fractional,uncertainty,low,achieved,absolute,center,frequency,At,same,method,also,able,accurately,infer,linear,behavior,gas,providing,strength,relative
AB值：
0.576732
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