Table 17.3. Raman peaks and assignments for raman bands of native brain tissue and intracranial tumors Raman shift (cm−1)AssignmentsRaman shift (cm−1)Assignments 670 Hemoglobin 1267 Lipid δ(CCH2), protein (amide III) 700 Cholesterol 1298 Lipid δ(CH2) 717 Choline N+(CH3)3 1440 Lipid...
Table 3.1Raman shift ofwatermelon juice 名称 特征峰 拉曼位移/cm-1 西瓜汁 1 2072 2 3660 3 3863 4 6814 5 7212 6 8939 7 10912 由于拉曼散射峰的频移数值与入射光的波长无关,只和西瓜汁本身的性质有关,拉曼光谱具有指纹光谱的特点,不同物质具有不同的拉曼光谱,因而测得的拉曼峰可作为辨识西瓜汁样品的...
spectral line shift/ intracavity beamdegenerate modesnondegenerate modescross anharmonicity constantsthermally excited levelsalleneRaman spectrumUsing a powerful intracavity and focused beam of a free running Ar-ion laser operating at 488 nm, the Raman Stokes spectrum of allene (C 3H 4) has been ...
four-coordinated Al content, and Raman scattering bands in the range were assigned to Si—O nb symmetric stretching vibrations. Raman bands in the range of 700—800 cm–1 can be attributed to Al—O nb symmetric stretching vibrations. The Raman bands in the range of 800—1200 cm–1 shift ...
2). As there is no electronic state shift, the system cannot exist in the virtual state. The system returns to a low vibration state. The energy difference between these two states is expressed by the wavelength of the emitted Raman photons. The scattered light and incident light wavelength ...
Table 1 Comparison of the observed Raman shift of three polytypes with reference ones 多型 简约波矢 Frequency/cm -1 横声学模 横光学模 纵声学模 纵光学模 x=q/qB FTA(folded transverse acoustic) FTO(folded transverse optic) FLA(folded longitudinal ...
另外在选取测试点时发现沿纤维轴向各点的raman光谱频移也不一样这说明沿纤维轴向的残余应力存在差异这种差异将导致沿纤维的界面剪切应力的存在20如果能获得沿某纤维轴向一系列点的残余应力就能够计算出界面剪应力inter吸湿前4个测量点的应力情况table1stresseshemeasuredpointhecomposbeforemoistureabsorptramanspectrumshe...
The broadband Raman oscillator operates to wavelength shift the Raman gain spectrum to the desired wavelength window. In this example, each of the plurality of laser diodes is combined with another laser diode to form a pair of laser diodes. In this example, the pump comprises five (5) pairs...
Ramanshift/era‘ Fig.4 Ramanspectraof75%co2mixed-gashydrate Table2 TheinformationprovidedbyRamanspectroscopy 根据水合物“松笼一紧笼”(1oosecag~tightcage)模型[2, 捕捉在“松笼”一大孔 穴里 的 CH 分子 ,其 C— H 的伸 缩频率 与 自由气体 的 CH 分 子相 比,发生 明显 的“蓝移 ”;而 “...
Table3 AssigmnenstofRamanshiftofglycinin 峰位/ cm -1 峰 强归 属 1667 5.909±0.864 酰胺 Ⅰ 带( 80% 的 C O 伸缩, 20% 的 C — N 伸缩和 N — H 摇摆) 1618 3.096±0.371 酪氨酸 + 色氨酸 1554 2.593±0.154 色氨酸 1448 4.269±0.629 C — H 弯曲振动 1337 3.876±0.244 色氨酸 1242 4....