欢迎来到天天文库
浏览记录
ID:21846113
大小:49.00 KB
页数:14页
时间:2018-10-25
《浅析光谱技术在200 nm以上和以下尺度范围内的不同》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、浅析光谱技术在200nm以上和以下尺度范围内的不同 摘要: 一直以?砉馄籽г诟骼嘌芯恐械玫搅斯惴旱挠τ谩2煌?的电磁光谱已被用于各种应用中,导致了各种光谱技术的演变。200nm(更准确地说是185nm)波长的光谱却仍旧是一个让光谱学家们警惕的问题。讨论和分析了为什么200nm以下和以上的光谱技术不同的原因,并进行了相应的分析。最后提出了有效地改进方法,不仅与空气吸收有关,而且与样品的本身属性有着密切的关联。 关键词: 紫外光谱;真空紫外线;光谱学 中图分类号:O433文献标志码:Adoi:10.3969/j.issn.10055
2、630.2016.06.010 Abstract: Spectroscopyhasbeenusedintremendousapplicationsandresearchessincealongtime.Differentportionsofelectromagneticspectrumhavebeenutilizedforthispurposewhichresultedinevolvementofvariousspectroscopictechniques.200nm(moreprecisely185nm)isstilladisple
3、asinghitchwhichremindsspectroscopiststobecautiouswhileworkingintheregionbelow200nm.Inthisreview,wegivereasonsandanalyzethemaswellonwhyarespectroscopictechniquesdifferentbelowandabove200nm.Wealsopresenttheshortevolutionofthetechniqueshowdidtheydevelopandthecontributionofth
4、escientists.It'snotonlyabsorptionbyairwhichhindersbutit'saboutthematerialsuseableinthisregimeandgenerationanddetectiontogetherstateofthesample. Keywords: ultravioletspectrum;vacuumultraviolet;spectroscopy Introduction Electromagneticspectrumisachartofallthefrequencies
5、alongwithassignmentofdifferentbandsasshowninFig.1.Theseelectromagneticwavesplayanimportantroleinawiderangeofapplicationsbutthequestionishow?Theanswerisbytheinteractionofelectromagneticwaveswithmaterinaloosesense.Interactionofelectromagneticwaveswithmattercangenerallybereg
6、ardedasspectroscopy.Nowthisisageneralterm.Specificnamesaregivenaccordingtoeithernatureofwavesorthetechniquebeingusedintheprocess.Forexampleinfraredspectroscopymeanselectromagneticwavesfromtheinfraredregionareusedinthemeasurementofspectra.Fouriertransforminfraredspectrosco
7、pymeansspectroscopyisdonebyusingFouriertransformtechnique.Itissameforthecasewithspectroscopictechniquesbelowandabove200nm. Howeverourfocusinthisreviewisnottopresenttheworkingprinciplesofspectroscopybeingdoneinthisrange.Insteadwewilltrytofindthefundamentalreasonsbehindthi
8、squestionwhyarespectroscopictechniquesdifferentbelowandabove200nmandcircumventionmeans.Aswecanse
此文档下载收益归作者所有