High-resolution and broadband mid-infrared Zeeman spectrum of gas-phase nitric oxide using a quantum cascade laser around 5.2 mu m | |
Wu, Kuijun; Liu, Linmei; Chen, Zhenwei; Cheng, Xuewu; Yang, Yong; Li, Faquan | |
刊名 | JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS |
2017-02-14 | |
卷号 | 50期号:3 |
关键词 | Zeeman spectrum Lande g-factor Hund's coupling case laser spectroscopy |
英文摘要 | A broadly tunable single-mode quantum cascade laser operating around 5.2 mu m has been used to study the high-resolution and broadband mid-IR Zeeman spectrum of Gas-phase (NO)-N-14-O-16. The Zeeman spectrum signals in the R (from R-0.5 to R-22.5), Q (from Q(0.5) to Q(6.5)) and P (from P-1.5 to P-14.5) branches of the fundamental vibrational transition, X-2 Pi(1/2), X-2 Pi(3/2) (v= 1 0), have been recorded with both large spectral region (over the range of 1824-1947 cm(-1)) and high spectral resolution (< 0.001 cm(-1)) for the first time. We simulated the patterns of magnetic Zeeman split lines in the R, Q, and P branches, and calculated the Land g-factor gJ of the (2)Pi(1/2), (2)Pi(3/2) components for pure Hund's coupling case (a) and (b), and intermediate coupling (a-b) case. The experimental Zeeman spectrum measured at various values of magnetic field strength (from 0.04 to 0.32 T) at conditions of both B perpendicular to E and B parallel to E was calibrated by a 101.6mm long solid germanium etalon with a free spectral range (FSR) of 0.012 cm(-1). Good agreement between the calculated Lande g-factors using Radford's theory and their best fit values inferred from the experimental data was obtained, which suggests that the Lande g-factor in Hund's coupling case (a-b) is a better approximation, either at higher rotational quantum numbers, or at lower rotational levels, for both (2)Pi(1/2), (2)Pi(3/2) subsystems. Our results provide a more general evidence to determine the coupling case of NO than previously available, because we can measure and simulate the high-resolution and broadband mid-IR Zeeman spectrum for both low and high rotational levels of the two subsystems. |
WOS标题词 | Science & Technology ; Physical Sciences |
类目[WOS] | Optics ; Physics, Atomic, Molecular & Chemical |
研究领域[WOS] | Optics ; Physics |
关键词[WOS] | FARADAY MODULATION SPECTROSCOPY ; MAGNETIC-FIELDS ; ROTATION SPECTROSCOPY ; SENSITIVE DETECTION ; ELECTRONIC-SPECTRA ; STERN-GERLACH ; NO ; RADICALS ; MOLECULE |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000393901400001 |
内容类型 | 期刊论文 |
源URL | [http://ir.wipm.ac.cn/handle/112942/10032] |
专题 | 武汉物理与数学研究所_高技术创新与发展中心 |
作者单位 | Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan Natl Lab Optoelect, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China |
推荐引用方式 GB/T 7714 | Wu, Kuijun,Liu, Linmei,Chen, Zhenwei,et al. High-resolution and broadband mid-infrared Zeeman spectrum of gas-phase nitric oxide using a quantum cascade laser around 5.2 mu m[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,2017,50(3). |
APA | Wu, Kuijun,Liu, Linmei,Chen, Zhenwei,Cheng, Xuewu,Yang, Yong,&Li, Faquan.(2017).High-resolution and broadband mid-infrared Zeeman spectrum of gas-phase nitric oxide using a quantum cascade laser around 5.2 mu m.JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,50(3). |
MLA | Wu, Kuijun,et al."High-resolution and broadband mid-infrared Zeeman spectrum of gas-phase nitric oxide using a quantum cascade laser around 5.2 mu m".JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 50.3(2017). |
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