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phonon line
相关语句
  声子线
     At the same time, We show that under a proper nitrogen doping concentration, due to the "concentration quenching" effect, the full spectrum of the NN3 center (i.e., its zero phonon line and various phonon replicas) is revealed without the interference from the spectra of other higher energy centers (especially NN4-NN6).
     同时,在较低组分(x月.12%)的样品中,直接观测到了NN,零声子线及其声子伴线,并得到各声子的能量,与以前的间接实验相比,提供了直接的证据,证实了NN3束缚激子具有与NN:和孤立N中心完全相似的声子伴线。
短句来源
     With temperature reduced, while the intensity of J-peak, the zero phonon line increased, anomalous enhancement of the phonon sideband was observed.
     随着温度下降零声子线J峰强度的增大,观察到声子伴带的异常加强。
短句来源
     A zero phonon line at 632.1 nm wavelength belonged to R 2 color center are observed in the absorption spectra of the NaCl crystals measured at 10 K temperature. The spectral properties and thermal stabilities of the zero phonon line are investigated at different temperatures.
     在 10 K温度下的吸收光谱中观测到位于 6 32 .1nm波长处的 R2 色心的零声子线 ,并在不同温度下对零声子线的光谱特性和热稳定性进行了研究。
短句来源
  相似匹配句对
     On-line
     行业在线
短句来源
     On line
     行业在线
短句来源
     The zero-phonon absorption line at 6166(?)
     首次观察出6166(?)
短句来源
     ZERO-PHONON LINE AND LOCAL MODES OF TETRAPHENYLPORPHIN IN CELLULOSE ACETATE FILM
     在醋酸纤维素薄膜中四苯基卟吩的零声子线和局域模
短句来源
     Exciton and Phonon Dispersion
     激子与声子色散
短句来源
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  phonon line
There is a reduction in both the AlAs-like and InAs-like longitudinal-optic (LO) phonon frequencies and a broadening of the LO phonon line shape as the doping level is increased.
      
The N3-system is dominant on a nanosecond scale and has a 415.2-nm zero-phonon line with phonon replicas in the range 430-460 nm.
      
The experimental absorption line is well accounted for by the one-phonon line shapes calculated here and phonon-libron and multi-phonon absorption, which has been treated elsewhere.
      
Zero-phonon line polarization as a method for investigating the mechanism of vibrational structure formation of fluorescence spe
      
A donor-acceptor pair recombination (zero phonon line at 3.05?eV) with LO phonon replica is observed.
      
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The photoluminescences of GaP (N, Te, Zn) at 77 K have been studied under high pressures. The pressure coefficients of donor Te and exciton levels bound to N, NN1, NN3, and neutral donor Te have been obtained. The pressure behaviors of these levels have been discussed. The zero-phonon line of free excitons in GaP is observed for the first time.

对GaP(N,Te,Zn)样品做了77K的静压光致荧光研究。得到了N,NN_1,NN_3束缚激子能级的压力系数,以及施主Te和中性施主Te的束缚激子能级的压力系数。讨论了这些能级随压力的变化行为,并首次观察到Gap中自由激子的零声子发射。

The hematoporphyrin have several isomers. These isomers often exist in two types, alternate substitute and non-symmetry substitute.At the room temperature, the spectra of the hematoporphyrin in solution have the character of broad band, which have no vibronic structure and can not give the feature of the different isomers.Using the flashlamp pumped tunable Rh 6G dye laser, we was made the selective excitation for the electronic-vibronic levels of the hematoporphyrin in the ethanal at 77K. In experiment, the...

The hematoporphyrin have several isomers. These isomers often exist in two types, alternate substitute and non-symmetry substitute.At the room temperature, the spectra of the hematoporphyrin in solution have the character of broad band, which have no vibronic structure and can not give the feature of the different isomers.Using the flashlamp pumped tunable Rh 6G dye laser, we was made the selective excitation for the electronic-vibronic levels of the hematoporphyrin in the ethanal at 77K. In experiment, the laser linewidth taken is lager than the homogeneous linewidth and narrower than the inhomogeneous linewidth, in order to distinguish the different feature of the isomer. The results show that four narrowed peaks appear in the region of 0 - 0 transition for different excitative wavelength. It is possible that these peaks belong to isomer molecules with the electronic vibranica transition frequency as consistent with the laser excitative freguency. Since the vibronic levels of the different molecules superposed each other,several peaks simultaneously was observed in the region of the 0-0 transition. The position of different 0 - 0 transition peaks are relatively shifted from difference of the structure symmetry. Two peaks appeared in the fluorescence spectra at 77K belong to two main kinds of the isomer.In (1 N) HCl solution, since the structural symetry increased the fluorescent spectra occured blue-shift. Thus 0-0 transition band lies on the region of 570-600 nm, which just consistent with the tunable range of the Rh 6G dye laser. The structural fluorescent spectra are occured by laser selective excitation in the region of 0 - 0 transition. When excitation at λ = 591.3nm the vibronic structure is clear but as the excitative wavelength shortened the structure disappears stepwise. This phenomenon can. be interpret as overlaping of the pure electronic transition with the phonon sideband in the shorter wavelength side of the 0-phonon line. The experimental results indicated that the electronic-phonon coupling of the HPD in these solvent is not very strong.

用脉冲染料激光器在77K对血卟啉在乙醇和HCl溶液中的电子振动带和0—0跃迁带进行激光选择激发,得到了有振动结构的荧光光谱,发现其对激发波长有明显的选择性。在冷凝的乙醇溶液中,HPD的荧光出现四种不同的特征,在选择激发下给出更好的分辨。认为它可能与异构现象有关。

The simple linear relation between Δ (the gap between 4T2 and 2E zero-phonon lines) and parameters Dq, B. C and ΔE, (Stoke's shift), was discovered by analysis and calculations on the basis of Tanabe-Sugano matrices. The applicability of the relationship was explained on sone examples. The crystal-field strength criterion made by P. T. Kenyon was deduced and its limitation in the application was pointed out.

本文以Tanabe-Sugano矩阵为基础,通过分析和计算发现,~4Υ_2和~2E零声子线之间的间隔△与参数D_q、B、C和△E_(?)(斯托克斯频移)之间有简单的线性关系.举例说明了此关系式的应用,并对P.T.Kenyon晶场强度判据作了推导,指出了其在应用上的局限性.

 
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