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瞬态反射谱
相关语句
  transient reflection spectroscopy
     The ultrafast dynamics property of the GaAs carrier is studied with the femtosecond transient reflection spectroscopy method.
     利用飞秒瞬态反射谱,研究了GaAs的载流子的超快动力学特性。
短句来源
  “瞬态反射谱”译为未确定词的双语例句
     THE RELATIVE FERMI LEVEL POSITION AND THE ELECTRON-PHONON COUPLING OF YBa_2Cu_3O_(7-δ) STUDIED BY FEMTOSECOND TRANSIENT REFLECTIVITY
     飞秒瞬态反射谱研究YBa_2Cu_3O_(7-δ)费密面变化与电声子耦合
短句来源
     Femtosecond Transient Transmission and Reflection Spectroscopy of GaAs Thin Film
     GaAs薄膜的飞秒瞬态反射谱与透射谱
短句来源
     Femtosecond time- resolved reflection spectroscopy in high Tc oxide super-conductors YBa_2Cu_3O_(7-x)(x=0.1,0.4,0. 8) and PrBa_2Cu_3O_(6.9) is studied.
     本文研究了室温下YBa_2Cu_3O_(7-x)(x=0.1,0.4,0.8)和PrBa_2Cu_3O_(6.9)外延膜的飞秒瞬态反射谱
短句来源
     Carrier lifetime in( S,Fe,Zn) doped InP and undoped InP has been investigated using the method of measuring transient reflectivity,which reveals a significant reduction of carrier lifetime from 60 ps in the unintentionally doped InP to about 1 Ps in(S,Fe) doped InP,38 ps in the Zn- doped.
     利用测量瞬态反射谱的方法,探索了掺硫、铁、锌以及非掺杂的InP中载流子寿命。 观察到非掺杂InP中载流子寿命最长约60ps;
短句来源
     The femtosecond transient transmission and reflection spectra of GaAs thin film are measured. and the transient complex dielectric constant and complex refractive indexarecal culated from the experimental results. It is found that the transient transmission spectrum is dominated by the change in the absorption of the sample while the transient reflection spectrum is affected by both the change the refractive index and the change in the absorption of the sample.
     本文测量了GaAs薄膜的瞬态反射谱和透射谱,计算了其复介电常数、复折射率的瞬态变化,发现瞬态透射谱主要反映了样品吸收的变化,而瞬态反射谱则同时受折射率和吸收变化的影响
短句来源
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  相似匹配句对
     Femtosecond Transient Transmission and Reflection Spectroscopy of GaAs Thin Film
     GaAs薄膜的飞秒瞬态反射与透射
短句来源
     The ultrafast dynamics property of the GaAs carrier is studied with the femtosecond transient reflection spectroscopy method.
     利用飞秒瞬态反射,研究了GaAs的载流子的超快动力学特性。
短句来源
     Bispectrum Estimation of Transient Signal
     瞬态信号的双估计
短句来源
     Electroreflectance Spectra of Schottky Barriers
     肖特基势垒的电反射
短句来源
     Deep Level Transient Spectroscopy of ZnTe Single Crystal Sample
     ZnTe单晶的深能级瞬态
短句来源
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Femtosecond time- resolved reflection spectroscopy in high Tc oxide super-conductors YBa_2Cu_3O_(7-x)(x=0.1,0.4,0. 8) and PrBa_2Cu_3O_(6.9) is studied. It is observedthat the signs and the relaxation times of the reflectivity signals △R(t)are related tothe carrier concentration, The signs of △R(t)in YBa_2Cu_3O_(7-x) are found to change frompositive(x=0.1) to negative and the relaxation times are measured to increase fromless than l00 fs to more than 1 ps, with increasing x and with substitution of Pr for...

Femtosecond time- resolved reflection spectroscopy in high Tc oxide super-conductors YBa_2Cu_3O_(7-x)(x=0.1,0.4,0. 8) and PrBa_2Cu_3O_(6.9) is studied. It is observedthat the signs and the relaxation times of the reflectivity signals △R(t)are related tothe carrier concentration, The signs of △R(t)in YBa_2Cu_3O_(7-x) are found to change frompositive(x=0.1) to negative and the relaxation times are measured to increase fromless than l00 fs to more than 1 ps, with increasing x and with substitution of Pr for Y.These results reveal that the carrier-phonon coupling reduces with the decrease of the carrier concentration.

本文研究了室温下YBa_2Cu_3O_(7-x)(x=0.1,0.4,0.8)和PrBa_2Cu_3O_(6.9)外延膜的飞秒瞬态反射谱。结果表明,瞬态反射信号△R(t)的符号和弛豫时间与载流子浓度密切相关,对超导的YBa_2Cu_3O_(6.9),样品进行不同程度的去氧处理或者用Rr替代Y后,△R(t)的符号由正变负,弛豫时间由小于100fs增加到大于1ps,说明在高Tc氧化物超导体中,载流子浓度的减少使载流子-声子耦合强度降低。

The ultrafast relaxation dynamics of laser-excited nonequilibrium carriers in YBa2Cu3O7-δ(δ=0. 1,0.4,0.8) and in PrBa2Cu3O7 epitaxial films was studied with the nonequilibrium energy balance model. coupling constant A was deduced by simulating the femtosecond transient reflection signal.It was found that,with reduction of oxygen and substitution of Pr for Y,the relaxation time of nonequilibrium carriers increases and the e-ph coupling constant decreases obviously.This reveals that the e-ph interaction decreases...

The ultrafast relaxation dynamics of laser-excited nonequilibrium carriers in YBa2Cu3O7-δ(δ=0. 1,0.4,0.8) and in PrBa2Cu3O7 epitaxial films was studied with the nonequilibrium energy balance model. coupling constant A was deduced by simulating the femtosecond transient reflection signal.It was found that,with reduction of oxygen and substitution of Pr for Y,the relaxation time of nonequilibrium carriers increases and the e-ph coupling constant decreases obviously.This reveals that the e-ph interaction decreases with decreasing carrier concentration,and that the e-ph coupling may be the local interaction in real space.

通过拟合YBa2Cu3O(7-δ)(δ=0.1,0.4,0.8)和PrBa2Cu3O7外延膜的室温飞秒瞬态反射谱,研究了其非平衡载流子的超快弛豫动力学,计算了电声耦合常数λ.发现随着氧含量的降低及用Pr替代Y,Cu-O面上载流子浓度降低,非平衡载流子的弛豫时间增加而电声耦合常数明显减小.这表明电声耦合与载流子浓度的依赖关系,电声相互作用可能是一种实空间局域相互作用.

Carrier lifetime in( S,Fe,Zn) doped InP and undoped InP has been investigated using the method of measuring transient reflectivity,which reveals a significant reduction of carrier lifetime from 60 ps in the unintentionally doped InP to about 1 Ps in(S,Fe) doped InP,38 ps in the Zn- doped.Doped InP carrier lifetime is shorter than undoped InP,because S,Fe and Zn serve as recombination and trapping centers.Raman study was used to confirm these results.

利用测量瞬态反射谱的方法,探索了掺硫、铁、锌以及非掺杂的InP中载流子寿命。观察到非掺杂InP中载流子寿命最长约60ps;掺锌Inp中载流子寿命38Ps居中;掺硫和掺铁的寿命最短约1ps。掺硫、铁和锌的InP中载流子寿命下降,是由于掺杂引入了复合中心。这一结果已被喇曼光谱所证实。

 
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