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infrared and raman active modes
相关语句
  拉曼光效和红外光
     THE CLASSIFICATION OF THE VIBRATIONAL MODES IN CALCITE FOR INFRARED AND RAMAN ACTIVE MODES
     拉曼光效和红外光效振动模式在方解石中的分类
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  “infrared and raman active modes”译为未确定词的双语例句
     Infrared spectrum and Raman spectrum were measured,the vibrational frequencies of infrared and raman active modes for Yb∶KYW crystal were assigned.
     测得晶体红外光谱和拉曼光谱,对其峰值所属振动的归属进行了指认,并测量了晶体的吸收光谱和荧光光谱。
短句来源
     The infrared spectra and Raman spectra of crystal were measured,and vibration frequencies of infrared and Raman active modes for Er/Yb:KYW crystal were assigned.
     测得晶体的红外和拉曼光谱,并对峰值与相应的原子基团振动进行了指认。
短句来源
  相似匹配句对
     Infrared Therapy
     红外医疗
短句来源
     Infrared Thermometry
     红外测温技术
短句来源
     The Infrared Handhook
     “红外手册”简介
短句来源
     Infrared science and technology in P.R.
     通过个人的亲身经历,介绍了我国红外科学技术发展的历程。
短句来源
     Infrared Radiations of Active Galaxies
     活动星系的红外辐射
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The laser crystal Yb∶KYW was grown by Kyropoulos method.As-grown crystal was identified as β-Yb∶KYW by XRD.The melting point and transition point of the crystal are 1045,1010 ℃ determined by TG-DTA.Infrared spectrum and Raman spectrum were measured,the vibrational frequencies of infrared and raman active modes for Yb∶KYW crystal were assigned.Absorption spectrum of Yb∶KYW is obtained,there are two intensive absorption peak at 940,980 nm respectively,and the absorption cross section is 1.34×10~(-19) cm~2...

The laser crystal Yb∶KYW was grown by Kyropoulos method.As-grown crystal was identified as β-Yb∶KYW by XRD.The melting point and transition point of the crystal are 1045,1010 ℃ determined by TG-DTA.Infrared spectrum and Raman spectrum were measured,the vibrational frequencies of infrared and raman active modes for Yb∶KYW crystal were assigned.Absorption spectrum of Yb∶KYW is obtained,there are two intensive absorption peak at 940,980 nm respectively,and the absorption cross section is 1.34×10~(-19) cm~2 at chief peak 980 nm.There exist three intensive emission in Yb∶KYW at 990,1010,1030 nm respectively,and the width of the chief peak 1030 nm emission line run up to 16 nm,so Yb∶KYW is an excellent gain medium for tunable laser.The peak emission cross section is 3.1×10~(-20) cm~2 at 1030 nm by calculation.

采用泡生法生长Yb∶KYW晶体,通过XRD分析确认所生长的晶体为-βYb∶KYW。TG-DTA测量结果表明,晶体的熔点为1045℃,相变温度为1010℃。测得晶体红外光谱和拉曼光谱,对其峰值所属振动的归属进行了指认,并测量了晶体的吸收光谱和荧光光谱。结果表明,Yb∶KYW晶体在940,980 nm附近有很强的吸收峰,主峰980 nm处的吸收截面积为1.34×10-19cm2;该晶体在990,1010,1030 nm附近都有较强的荧光发射峰,其中最强发射峰1030 nm的发射线宽高达16 nm,有望作为可调谐激光器的增益介质。计算得其1030 nm受激发射截面积为3.1×10-20cm2。

In this paper,Er3+/Yb3+:KY(WO4)2 laser crystal with size 15 mm×18 mm×25 mm was grown by TSSG method.The crystal was identified as β-Er/Yb:KYW by XRD analysis.The transition temperature and melting point were 1031℃ and 1067℃ by TG-DTA curve,respectively.The infrared spectra and Raman spectra of crystal were measured,and vibration frequencies of infrared and Raman active modes for Er/Yb:KYW crystal were assigned.According to the absorption spectrum of sample,there existed four strong peaks at...

In this paper,Er3+/Yb3+:KY(WO4)2 laser crystal with size 15 mm×18 mm×25 mm was grown by TSSG method.The crystal was identified as β-Er/Yb:KYW by XRD analysis.The transition temperature and melting point were 1031℃ and 1067℃ by TG-DTA curve,respectively.The infrared spectra and Raman spectra of crystal were measured,and vibration frequencies of infrared and Raman active modes for Er/Yb:KYW crystal were assigned.According to the absorption spectrum of sample,there existed four strong peaks at 380 nm,525 nm,933 nm and 981 nm,and the absorption cross section was 3.2×10-20 cm2 at a main peak of 981 nm.Fluorescence spectrum of the crystal was measured by excitation sources of 488 nm and 978 nm,respectively,and the lifetime of 4I13/2 was 4.8 ms,with showed that Yb3+ as sensitization doped in Er:KYW crystal was proper for absorbing pump light and obtaining strong laser of 1540 nm.

采用TSSG法生长出尺寸为15mm×18mm×25mm的Er3+/Yb3+:KY(WO4)2晶体,XRD分析表明所生长的晶体为β-Er/Yb:KYW。对晶体进行了TG-DTA分析,结果表明晶体的相转变温度和熔点分别为1031℃和1067℃。测得晶体的红外和拉曼光谱,并对峰值与相应的原子基团振动进行了指认。测得样品的吸收光谱,结果表明晶体在380nm,525nm,933nm和981nm处都存在较强的吸收峰,并计算出主峰981nm的吸收截面积σabs=3.2×10-20cm2。分别用激发源为488nm和978nm对晶体进行了荧光光谱测试,并测得978nm激发时荧光寿命为4.8ms。对比分析表明在Er:KYW中掺入Yb3+作为敏化离子是可行的,能够提高对泵浦光吸收,有利于得到更强的1540nm的激光。

 
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