量子材料
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随着科学技术进一步向微观尺度发展,在单分子荧光光谱、量子材料的超快现象等研究领域中,不但要求具有很高的时间分辨率,同时要求具有很高的空间分辨率。
Along with the development of science towards the further microcosmic fields , in many researches such as fluorescence spectrum of single molecule , ultra-fast phenomena study of quanta material , etc. , a high time-resolution is not enough , and a high spatial-resolution is needed too .
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GaAs/AlGaAs量子阱材料的X射线形貌及其发光性能
X-ray topography and photoluminescence properties of gaas / algaas quantum well materials
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Z扫描法研究nc-Si/SiNx多量子阱材料非线性光学特性
Study on Non-linear Optical Properties of nc-Si / SiN_x MQW with Z-scan Method
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采用光致发光谱、光致发光激发谱以及拉曼光谱对GaN基量子阱材料进行了实验观察和分析。
GaN based quantum wells is studied by observing and analyzing photoluminescence spectrum , photoluminescence excited spectrum and Raman spectrum .
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缓冲层对多量子阱材料GaAs/Ga(1-x)AlxAs共振态的影响
Effect of buffer layer on resonant states in material GaAs / Ga_ ( 1-x ) Al_xAs
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MOCVD与MBE生长GaAs/AlGaAs量子阱材料的红外探测器特性比较
Performance Comparison of GaAs / AlGaAs Quantum Well Infrared Photodetectors Grown by MOCVD and MBE
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分子束外延InAs量子点材料的透射电子显微镜研究
Study of Molecular Beam Epitaxy InAs Multilayers Dots by TEM
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选择区域生长高质量InGaAsP多量子阱材料
High Quality InGaAsP MQW by Selective Area Growth
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InGaAsP四元系量子阱材料的热稳定性
Thermal Stability of InGaAsP Quaternary Quantum Wells Materials
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采用椭圆偏振光谱法对掺铬的半绝缘GaAs衬底和GaAs/AlGaAs量子阱材料的光学性质进行了研究。
The optical properties of the Cr doped semi-insulating GaAs and the GaAs / AlGaAs quantum well material are studied using the spectroscopic ellipsometry .
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(ZnSe/Cdse)ZnSe/GaAs(001)多量子阱材料的X射线双晶衍
Structure analysis of ( znse / cdse ) / znse / gaas multiple quantum wells by X-ray double-crystal diffraction
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垂直堆垛InAs量子点材料的分子束外延生长
Growth of Vertically Stacked and Self-Assembled InAs Quantum Dots
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本文采用分子束外延技术制备了高质量的GaAs基InAs自组织量子点材料。
In this thesis , high quality GaAs-based InAs self-organized QDs were grown by molecular-beam epitaxy ( MBE ) .
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高In组分InxGa(1-x)N/GaN多量子阱材料电致荧光谱的研究
Study on electroluminescence spectra of In_xGa_ ( 1-x ) N / GaN-MQWs materials with high indium contents
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本论文研究了GaAs/AlGaAs多量子阱材料的电子以及自由电子激光辐照效应。
In this paper the author studied the effects of electron & free electron laser ( PEL ) irradiation on GaAs / AlGaAs multiple quantum wells .
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气态源分子束外延(AlGa)InP和GaInP/AlInP多量子阱材料
( AlGa ) InP and GaInP / AlInP Multiple Quantum Wells Grown by Gas Source Molecular Beam Epitaxy
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利用有机合成法,选择氧化铅和六甲基二硅硫烷作为前驱体,引入三辛基膦作为稳定剂,制备PbS量子点材料。
Lead oxide and bis ( trimethylsilyl ) sulfide were chosen as precursors , and trioctylphosphine was added as stabilizer to prepare PbS QDs using organometallic synthetic method .
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基于GaAs-AlGaAs非对称耦合量子阱材料的半导体弱光开关
A Weak Optical Switch in GaAs-AlGaAs Asymmetric Coupled Quantum Wells
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对InGaAsP量子阱材料生长、测试及器件制作工艺作了详细的说明,InGaAsP四元系材料的MOCVD高质量生长需要调整很多参数如Ⅴ/Ⅲ、中断时间等;
Depicting InGaAsP quantum well layer epitaxy material measurement and device fabrication technology . The material MOCVD epitaxy needs to regulate some parameters including V / III and interval .
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为适应无汞荧光灯和等离子体平板显示(PDP)技术的发展,探寻新型量子剪裁材料成为真空紫外光(VUV)激发下高效发光材料研究的新途径。
With the development of mercury-free fluorescent tubes and plasma display panels , research new system of quantum cutting phosphors becomes new means to promote the efficiency of VUV excited phosphors .
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对分子束外延(MBE)法在BaF2衬底上生长的N型Pb(0.88)Sn(0.12)Te/PbTe多量子阱材料进行了变温(16~300K)弱场霍尔效应测量。
N-type Pb_ ( 0.88 ) Sn_ ( 0.12 ) Te / PbTe multi-quantum well structures on BaF_2 substrate have been prepared by MBE technique . Weak field Hall coefficients are measured from 16K to 300K .
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同时,在高能电子束轰击下,CdTe和CdSe荧光量子点材料能发射光子形成阴极荧光图像。
Under the excitation of high-energy electron the porous materials of CdTe and CdSe QDs will emit photons that can be collected to form a cathode luminescence ( CL ) image . 3 .
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本文介绍了用MBE技术制作半导体超晶格和量子阱材料的进展,以及在高速电子器件和光学器件方面的应用。
In this paper , we presented recent advance on semiconductor superlattice and quantum well materials with MBE technique , and the applications of these materials in high-speed electronic devices and photoelectric devices .
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因此,SESAM除了其量子阱材料的可饱和吸收效应能启动锁模外,本身的负克尔效应也有助于锁模的自启动。
These reveal that the negative Kerr effect of the SESAM can contribute to the self-starting of mode-locked lasers besides the saturable absorption mechanism .
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半导体量子阱材料的自由电子激光辐照效应及OTCS测试研究
Study on GaAs / AlGaAs multiple quantum wells irradiated by free electron laser and OTCS measurement
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用MBE方法生长了掺杂SiGe/Si量子阱材料,在低温下观测到近带边光跃迁。
The samples of doped SiGe / Si quantum well have been grown using a molecular beam epitaxy ( MBE ) system and the near-band-gap optical transition from these samples was observed at low temperatures .
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从系统自由能角度,阐明了MBE生长的InGaNAs量子阱材料在高温热退火过程中的结构和物理性能的变化。
In this report , the effects of high temperature rapid thermal annealing on properties of InGaNAs / GaAs quantum wells grown by molecular beam epitaxy has been discussed .
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与GaAs体材料相比,量子阱材料所需控制光强度能够减少约20%,有助于降低全光开关与全光调制器的功耗。
Compared with the model based on GaAs bulk materials , the model based on quantum wells materials can reduce the controlling power density by about 20 % to reach the same photon-induced refractive index change , and also decrease the controlling power consumption for all-optical switches and all-optical modulators .
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分子束外延生长GaAlAs/GaAs量子阱材料时,适当的衬底温度和Ⅴ/Ⅲ束流比是改善AlGaAs材料生长质量的重要因素。
The GaAlAs / GaAs material with gradient refraction index quantum well structure has been grown by MBE . On the base of AlGaAs , GaAs fundamental material growth , excellent materials by the substrate temperature and ⅴ / ⅲ flux ratio optimization were achieved .
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在考虑了量子阱材料中的增益和载流子浓度之间的对数关系后,得到了VCSOA的峰值响应频率以及3dB频率响应带宽的解析表达式。
After taking account of the logarithmic relation between the gain and the carrier concentration in quantum well material , the analytical expressions of the peak response frequency and the 3 dB frequency response bandwidth are obtained .