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without inversion
相关语句
  无粒子数反转
     This thesis mainly discusses the physics mechanism of lasing without inversion and proposed a closed four-level atomic model for the lasing without inversion.
     本文主要的探讨了无粒子数反转激光的物理机制,建议了一种封闭的四能级无反转激光模型,并证明它也能够呈现无粒子数反转光放大现象。
短句来源
     The Nonlinear Theory of Lasing Without Inversion in an Open Simple Three level Atomic System
     开放的三能级系统中无粒子数反转激光的非线性理论
短句来源
     The Study of Lasing Without Inversion in an Open V-Type System
     开放的V型无粒子数反转激光系统的理论研究
短句来源
     The Theoretical Study of Lasing without Inversion in an Open Three Level Ladder-Type System
     开放的Ladder型三能级无粒子数反转激光系统的理论研究
短句来源
     The study of lasing without inversion (LWI) is an important and active research front field in international lasing physics nowadays. The study of LWI has not only an important theoretical value, but also wide application prospects.
     无粒子数反转激光(Lasing Without Inversion简称LWI)的研究是当前国际上激光物理重要而活跃的研究前沿领域之一,无粒子数反转激光的研究不仅具有重要的理论价值,而且具有广阔的应用前景。
短句来源
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  “without inversion”译为未确定词的双语例句
     Nonlinear Dynamics Study of Lasing without Inversion for Open Lower-ladder and V Systems
     开放的Lower-ladder型和V型系统的非线性动力学研究
短句来源
     (2) With analysis of the ECC-based digital signature scheme, a new signature scheme is presented, which allows signature with message recovery and without inversion.
     (2)通过对ECC签名方案进行分析,构造了新的签名方案,该方案避免了ECC签名方案中的求逆运算,并且解决了ECC签名方案不能实现消息恢复的问题。
短句来源
     Lasing without Inversion and Origin of Gain in Λ system
     三能级Λ-型原子系统的无反转激光及增益的起源
短句来源
     LASERS WITHOUT INVERSION VIA OPTICAL PUMPING
     光抽运无反转激光
短句来源
     In MgSO4 matrix,Dy3+ seized low symmetry location without inversion center of symmetry so as to emit yellow orange light.
     以MgSO4为基质,Dy3+占据低对称的格位,无反演中心,发射光谱以黄橙光发射为主。
短句来源
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  相似匹配句对
     Lasing Without Inversion
     无反转激光
短句来源
     TRANSPARENCY AND GAIN WITHOUT INVERSION IN PHOTONIC CRYSTALS
     光子晶体的感应透明与无反转增益
短句来源
     Be Without You
     不能没有你(英文)
短句来源
     Travel Without
     第六代选择 没有风景的旅行
短句来源
     The third is inversion;
     第三是数据的解释以及反演。
短句来源
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  without inversion
Threshold voltage shift was measured for NMOS transistors with and without inversion bias.
      
Nonlinear interaction of optical biharmonics in a gaseous medium without inversion centers
      
The condensation of 2,3,4,6-tetra-O-acetyl-β-D-glucopyranose with dibutylacetyl phosphite proceeds without inversion of the configuration, forming 2,3,4,6-tetra-O-acetyl-β-D-glycopyranosyldibutyl phosphite.
      
Electromagnetically induced transparency and lasing without inversion in three-level atoms imbedded in a frequency-dependent env
      
One remarkable result of the increased coupling efficiency is 'lasing without inversion'.
      
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Spectra of synthesized cBN crystal (black, Yellow, brown in color and <50μm) were measured by using IR, Raman and UV. The results are described in the following sections :(1)According to the infrared absorption spectrum, the sharp 1818cm-1and 1548cm-1ab-sorption spectrum bands is intrinsic vibration of cBN, while the defect absorption appeares at 800cm-1,1560cm-1-1740cm-1and >2400cm-1.(2) The Raman scattering spectrum shows that two lines appeared at 1052cm-1 and 1034cm-1 are in agreement with the fact the cBN...

Spectra of synthesized cBN crystal (black, Yellow, brown in color and <50μm) were measured by using IR, Raman and UV. The results are described in the following sections :(1)According to the infrared absorption spectrum, the sharp 1818cm-1and 1548cm-1ab-sorption spectrum bands is intrinsic vibration of cBN, while the defect absorption appeares at 800cm-1,1560cm-1-1740cm-1and >2400cm-1.(2) The Raman scattering spectrum shows that two lines appeared at 1052cm-1 and 1034cm-1 are in agreement with the fact the cBN possesses cubic symmetry without inversion centre. The lines in the spectrum correspond to the Stokes components of first modes Raman scattering with the emission of transverse and longitudinal optical phonons in the centre of the Bril-louin zone. The presence of line 144cm-1 can be accounted for by the emergence of local oscila-tion modes connected with the presence of impurity-defect complexes in the lattice.(3)The result of cBN reflection at spectrum indicates that three types of cBN crystals possess greater values of band gap which are Eg = 6. 12eV(black),Eg= 5. 73eV(yellow), Eg = 5. 71eV (brown) respectively.

将黑色、黄色、棕色三种小于50μm立方氮化硼粉末为样品,研究了其红外光谱、拉曼光谱、反射光谱,结果表明: (1)样品的红外光谱中,1818cm~(-1)和1548cm~(-1)属于cBN的晶格本征振动,而立方氮化硼的晶格本征振动外的晶体缺陷吸收则发生在~800cm~(-3),1580cm~(-1)~1740cm~(-1)和大于2400cm~(-1)处。 (2)拉曼光谱测试表明,在1052cm~(-1)和1304cm~(-1)附近出现的散射与cBN不具有反演中心及cBN具有立方结构这样的事实相一致,并且这种散射伴随着布里渊区中心声子的横向和纵向发射。144cm~(-1)附近出现的散射,被认为是由于局部振荡模式的出现,在反斯托克斯区造成的信号,这与晶格中杂质缺陷有关。 (3)依据得到的反射光谱,计算了cBN单晶禁带宽度,发现这三种cBN都具有大于金刚石的禁带宽度值,分别为:E_s(黑)=6.21eV,E_s(黄)=5.73eV,E_s(棕)=5.71eV。

The conditions for realizing lasing without inversion are investigated via density matrix method in bare and dressed states in the V-type closed lifetime-broadened system where atomic coherence is induced by an external electromagnetic field. It is shown that a proper choice of pumping rate may lead to the realization of lasing without inversion.

利用密度矩阵方法在裸态和缀饰态中研究了在外场引起原子相干的v型寿命自加宽能级系统中产生无反转激光的条件。发现适当选择抽运概率,该系统可以产生无反转激光。

Both nondegenerate A-and V-type laser systems can produce lasers without inversion via optical pumping.

非简并的Λ和V型激光系统都可以通过光抽运产生无反转激光。

 
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