Analysis of Lorentzian Line Shape Function Broadened by Non-Sinusoidal Wavelength Modulation
文献类型：期刊论文
| 作者 | Sun You-qun; Wang Yun-tao; Ruan Chi ; Xu Song-song
|
| 刊名 | spectroscopy and spectral analysis
 |
| 出版日期 | 2014-03-01 |
| 卷号 | 34期号:3页码:597-600 |
| 关键词 | Wavelength modulation spectroscopy (WMS) Sinusoidal modulation Second harmonic Harmonic distortion Lorentzian line shape |
| 英文摘要 | in the present work, the fourier analysis of lorentzian line shape broadened by non-sinusoidal wavelength modulation was investigated, in which the third order and above harmonic items were ignored. the analytical expression of n-order fourier coefficient was brought out, where a variable k named harmonic distortion to characterize the ratio of the second harmonic to the first harmonic was introduced. numerical simulations based on the cases of k>0. 01 and k<0. 01 were carried out, and the result shows: non-sinusoidal modulation has little effect compared with the sinusoidal modulation when k value is less than 0. 01, however, if k value is about 0. 1 or higher, the center of the fourier amplitude curve would deviate from the origin of coordinates. with the increase in the harmonic distortion, the deviation of the curve grows, and high order harmonics are more sensitive to the non-sinusoidal modulation compared with the low order harmonics. in addition, when harmonic distortion cannot be ignored, for example k>0. 01, the effect of different depths of modulation on the odd and even order harmonic amplitude curve is significant. and the numerical simulation shows there exists an optimum value of modulation depth which could minimize the impact of the harmonic distortion, and both large k value and small k value would cause a great error. the conclusion of this work could be applied in error analysis of wavelength modulation spectroscopy system. and the results are helpful to deepening understanding of wms and would be the important reference for some kind of frequency stabilization technology in laser instrument. |
| WOS标题词 | science & technology ; technology |
| 类目[WOS] | spectroscopy |
| 研究领域[WOS] | spectroscopy |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000335624300005 |
| 公开日期 | 2015-07-14 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/24082]  |
| 专题 | 西安光学精密机械研究所_瞬态光学技术国家重点实验室 |
| 作者单位 | Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun You-qun,Wang Yun-tao,Ruan Chi,et al. Analysis of Lorentzian Line Shape Function Broadened by Non-Sinusoidal Wavelength Modulation[J]. spectroscopy and spectral analysis,2014,34(3):597-600. |
| APA | Sun You-qun,Wang Yun-tao,Ruan Chi,&Xu Song-song.(2014).Analysis of Lorentzian Line Shape Function Broadened by Non-Sinusoidal Wavelength Modulation.spectroscopy and spectral analysis,34(3),597-600. |
| MLA | Sun You-qun,et al."Analysis of Lorentzian Line Shape Function Broadened by Non-Sinusoidal Wavelength Modulation".spectroscopy and spectral analysis 34.3(2014):597-600. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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