Near-field optical imaging using metal tips illuminated by higher-order Hermite-Gaussian beams
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s-snom工作原理英文回答:S-SNOM Working Principle.Scanning s-SNOM (scattering-type scanning near-field optical microscopy) is a powerful technique for imaging the local optical properties of materials with nanoscale resolution. The working principle of s-SNOM is based on the scattering of light from a sharp metallic tip that is brought into close proximity to the sample surface. The tip acts as a subwavelength antenna that concentrates the incident light field and enhances the scattering signal from the sample.The scattering signal collected by the tip is directly related to the optical properties of the sample at the nanoscale. For example, the amplitude of the scattering signal is proportional to the local refractive index, while the phase of the scattering signal is related to the localthickness and topography of the sample. By raster scanning the tip across the sample surface, it is possible to generate images that map the spatial distribution of these optical properties.S-SNOM has a number of advantages over other near-field optical microscopy techniques, such as apertureless SNOMand photoluminescence SNOM. First, s-SNOM does not require the use of a subwavelength aperture, which can be difficult to fabricate and maintain. Second, s-SNOM is compatiblewith a wide range of samples, including opaque and non-fluorescent materials. Third, s-SNOM can be used to image both the real and imaginary parts of the sample's optical response.S-SNOM has been used to study a wide range of materials, including semiconductors, metals, polymers, and biological materials. It has been used to investigate the optical properties of nanostructures, such as quantum dots and plasmonic resonators. It has also been used to study the local optical properties of materials in heterogeneous systems, such as solar cells and thin films.中文回答:S-SNOM工作原理。
《光电技术》专业英语词汇1.Absorption coefficient 吸收系数2.Acceptance angle 接收角3.fibers 光纤4.Acceptors in semiconductors 半导体接收器5.Acousto-optic modulator 声光调制6.Bragg diffraction 布拉格衍射7.Air disk 艾里斑8.angular radius 角半径9.Airy rings 艾里环10.anisotropy 各向异性11.optical 光学的12.refractive index 各向异性13.Antireflection coating 抗反膜14.Argon-ion laser 氩离子激光器15.Attenuation coefficient 衰减系数16.Avalanche 雪崩17.breakdown voltage 击穿电压18.multiplication factor 倍增因子19.noise 燥声20.Avalanche photodiode(APD) 雪崩二极管21.absorption region in APD APD 吸收区域22.characteristics-table 特性表格23.guard ring 保护环24.internal gain 内增益25.noise 噪声26.photogeneration 光子再生27.primary photocurrent 起始光电流28.principle 原理29.responsivity of InGaAs InGaAs 响应度30.separate absorption and multiplication(SAM) 分离吸收和倍增31.separate absorption grading and multiplication(SAGM) 分离吸收等级和倍增32.silicon 硅33.Average irradiance 平均照度34.Bandgap 带隙35.energy gap 能级带隙36.bandgap diagram 带隙图37.Bandwidth 带宽38.Beam 光束39.Beam splitter cube立方分束器40.Biaxial crystals 双轴晶体41.Birefringent 双折射42.Bit rate 位率43.Black body radiation law 黑体辐射法则44.Bloch wave in a crystal 晶体中布洛赫波45.Boundary conditions 边界条件46.Bragg angle 布拉格角度47.Bragg diffraction condition 布拉格衍射条件48.Bragg wavelength 布拉格波长49.Brewster angle 布鲁斯特角50.Brewster window 布鲁斯特窗51.Calcite霰石52.Carrier confinement 载流子限制53.Centrosymmetric crystals 中心对称晶体54.Chirping 啁啾55.Cladding覆层56.Coefficient of index grating 指数光栅系数57.Coherence 连贯性pensation doping 掺杂补偿59.Conduction band 导带60.Conductivity 导电性61.Confining layers 限制层62.Conjugate image 共轭像63.Cut-off wavelength 截止波长64.Degenerate semiconductor简并半导体65.Density of states 态密度66.Depletion layer 耗尽层67.Detectivity 探测率68.Dielectric mirrors 介电质镜像69.Diffraction 衍射70.Diffraction grating 衍射光栅71.Diffraction grating equation 衍射光栅等式72.Diffusion current 扩散电流73.Diffusion flux 扩散流量74.Diffusion Length 扩散长度75.Diode equation 二极管公式76.Diode ideality factor 二极管理想因子77.Direct recombination 直接复合78.Dispersion 散射79.Dispersive medium 散射介质80.Distributed Bragg reflector 分布布拉格反射器81.Donors in semiconductors 施主离子82.Doppler broadened linewidth 多普勒扩展线宽83.Doppler effect 多普勒效应84.Doppler shift 多普勒位移85.Doppler-heterostructure 多普勒同质结构86.Drift mobility漂移迁移率87.Drift Velocity 漂移速度88.Effective density of states 有效态密度89.Effective mass 有效质量90.Efficiency 效率91.Einstein coefficients 爱因斯坦系数92.Electrical bandwidth of fibers 光纤电子带宽93.Electromagnetic wave 电磁波94.Electron affinity 电子亲和势95.Electron potential energy in a crystal 晶体电子阱能量96.Electro-optic effects 光电子效应97.Energy band 能量带宽98.Energy band diagram 能量带宽图99.Energy level 能级100.Epitaxial growth外延生长101.Erbium doped fiber amplifier 掺饵光纤放大器102.Excess carrier distribution 过剩载流子扩散103.External photocurrent 外部光电流104.Extrinsic semiconductors 本征半导体105.Fabry-Perot laser amplifier 法布里-珀罗激光放大器106.Fabry-Perot optical resonator 法布里-珀罗光谐振器107.Faraday effect 法拉第效应108.Fermi-Dirac function 费米狄拉克结109.Fermi energy 费米能级110.Fill factor 填充因子111.Free spectral range 自由谱范围112.Fresnel’s equations菲涅耳方程113.Fresnel’s optical indicatrix 菲涅耳椭圆球114.Full width at half maximum半峰宽115.Full width at half power半功率带宽116.Gaussian beam 高斯光束117.Gaussian dispersion 高斯散射118.Gaussian pulse 高斯脉冲119.Glass perform玻璃预制棒120.Goos Haenchen phase shift Goos Haenchen相位移121.Graded index rod lens 梯度折射率棒透镜122.Group delay 群延迟123.Group velocity 群参数124.Half-wave plate retarder 半波延迟器125.Helium-Neon laser氦氖激光器126.Heterojunction 异质结127.Heterostructure 异质结构128.Hole 空穴129.Hologram 全息图130.Holography 全息照相131.Homojunction 同质结132.Huygens-Fresnel principle惠更斯-菲涅耳原理133.Impact-ionization 碰撞电离134.Index matching 指数匹配135.Injection 注射136.Instantaneous irradiance 自发辐射137.Integrated optics 集成光路138.Intensity of light 光强139.Intersymbol interference 符号间干扰140.Intrinsic concentration本征浓度141.Intrinsic semiconductors 本征半导体142.Irradiance 辐射SER 激光144.active medium 活动介质145.active region 活动区域146.amplifiers 放大器147.cleaved-coupled-cavity解理耦合腔148.distributed Bragg reflection 分布布拉格反射149.distributed feedback 分布反馈150.efficiency of the He-Ne 氦氖效率151.multiple quantum well 多量子阱152.oscillation condition 振荡条件ser diode 激光二极管sing emission 激光发射155.LED 发光二极管156.Lineshape function 线形结157.Linewidth 线宽158.Lithium niobate铌酸锂159.Load line 负载线160.Loss coefficient 损耗系数161.Mazh-Zehnder modulator Mazh-Zehnder型调制器162.Macrobending loss 宏弯损耗163.Magneto-optic effects 磁光效应164.Magneto-optic isolator 磁光隔离165.Magneto-optic modulator 磁光调制166.Majority carriers 多数载流子167.Matrix emitter 矩阵发射168.Maximum acceptance angle 最优接收角169.Maxwell’s wave equation 麦克斯维方程170.Microbending loss 微弯损耗171.Microlaser 微型激光172.Minority carriers 少数载流子173.Modulated directional coupler 调制定向偶合器174.Modulation of light 光调制175.Monochromatic wave 单色光176.Multiplication region 倍增区177.Negative absolute temperature 负温度系数 round-trip optical gain 环路净光增益179.Noise 噪声180.Noncentrosymmetric crystals 非中心对称晶体181.Nondegenerate semiconductors 非简并半异体182.Non-linear optic 非线性光学183.Non-thermal equilibrium 非热平衡184.Normalized frequency 归一化频率185.Normalized index difference 归一化指数差异186.Normalized propagation constant 归一化传播常数187.Normalized thickness 归一化厚度188.Numerical aperture 孔径189.Optic axis 光轴190.Optical activity 光活性191.Optical anisotropy 光各向异性192.Optical bandwidth 光带宽193.Optical cavity 光腔194.Optical divergence 光发散195.Optic fibers 光纤196.Optical fiber amplifier 光纤放大器197.Optical field 光场198.Optical gain 光增益199.Optical indicatrix 光随圆球200.Optical isolater 光隔离器201.Optical Laser amplifiers 激光放大器202.Optical modulators 光调制器203.Optical pumping 光泵浦204.Optical resonator 光谐振器205.Optical tunneling光学通道206.Optical isotropic光学各向同性的207.Outside vapor deposition管外气相淀积208.Penetration depth 渗透深度209.Phase change 相位改变210.Phase condition in lasers 激光相条件211.Phase matching 相位匹配212.Phase matching angle 相位匹配角213.Phase mismatch 相位失配214.Phase modulation 相位调制215.Phase modulator 相位调制器216.Phase of a wave 波相217.Phase velocity 相速218.Phonon 光子219.Photoconductive detector 光导探测器220.Photoconductive gain 光导增益221.Photoconductivity 光导性222.Photocurrent 光电流223.Photodetector 光探测器224.Photodiode 光电二极管225.Photoelastic effect 光弹效应226.Photogeneration 光子再生227.Photon amplification 光子放大228.Photon confinement 光子限制229.Photortansistor 光电三极管230.Photovoltaic devices 光伏器件231.Piezoelectric effect 压电效应232.Planck’s radiation distribution law 普朗克辐射法则233.Pockels cell modulator 普克尔斯调制器234.Pockel coefficients 普克尔斯系数235.Pockels phase modulator 普克尔斯相位调制器236.Polarization 极化237.Polarization transmission matrix 极化传输矩阵238.Population inversion 粒子数反转239.Poynting vector能流密度向量240.Preform 预制棒241.Propagation constant 传播常数242.Pumping 泵浦243.Pyroelectric detectors 热释电探测器244.Quantum efficiency 量子效应245.Quantum noise 量子噪声246.Quantum well 量子阱247.Quarter-wave plate retarder 四分之一波长延迟248.Radiant sensitivity 辐射敏感性249.Ramo’s theorem拉莫定理250.Rate equations速率方程251.Rayleigh criterion 瑞利条件252.Rayleigh scattering limit 瑞利散射极限253.Real image 实像254.Recombination 复合255.Recombination lifetime 复合寿命256.Reflectance 反射257.Reflection 反射258.Refracted light 折射光259.Refractive index 折射系数260.Resolving power分辩力261.Response time 响应时间262.Return-to-zero data rate 归零码263.Rise time 上升时间264.Saturation drift velocity 饱和漂移速度265.Scattering 散射266.Second harmonic generation 二阶谐波267.Self-phase modulation 自相位调制268.Sellmeier dispersion equation色列米尔波散方程式269.Shockley equation肖克利公式270.Shot noise肖特基噪声271.Signal to noise ratio 信噪比272.Single frequency lasers 单波长噪声273.Single quantum well 单量子阱274.Snell’s law斯涅尔定律275.Solar cell 光电池276.Solid state photomultiplier 固态光复用器277.Spectral intensity 谱强度278.Spectral responsivity 光谱响应279.Spontaneous emission 自发辐射280.stimulated emission 受激辐射281.Terrestrial light 陆地光282.Theraml equilibrium热平衡283.Thermal generation 热再生284.Thermal velocity 热速度285.Thershold concentration 光强阈值286.Threshold current 阈值电流287.Threshold wavelength 阈值波长288.Total acceptance angle 全接受角289.Totla internal reflection 全反射290.Transfer distance 转移距离291.Transit time 渡越时间292.Transmission coefficient 传输系数293.Tramsmittance 传输294.Transverse electric field 电横波场295.Tranverse magnetic field 磁横波场296.Traveling vave lase 行波激光器297.Uniaxial crystals 单轴晶体298.UnPolarized light 非极化光299.Wave 波300.Wave equation 波公式301.Wavefront 波前302.Waveguide 波导303.Wave number 波数304.Wave packet 波包络305.Wavevector 波矢量306.Dark current 暗电流307.Saturation signal 饱和信号量308.Fringing field drift 边缘电场漂移plementary color 补色310.Image lag 残像311.Charge handling capability 操作电荷量312.Luminous quantity 测光量313.Pixel signal interpolating 插值处理314.Field integration 场读出方式315.Vertical CCD 垂直CCD316.Vertical overflow drain 垂直溢出漏极317.Conduction band 导带318.Charge coupled device 电荷耦合组件319.Electronic shutter 电子快门320.Dynamic range 动态范围321.Temporal resolution 动态分辨率322.Majority carrier 多数载流子323.Amorphous silicon photoconversion layer 非晶硅存储型324.Floating diffusion amplifier 浮置扩散放大器325.Floating gate amplifier 浮置栅极放大器326.Radiant quantity 辐射剂量327.Blooming 高光溢出328.High frame rate readout mode 高速读出模式329.Interlace scan 隔行扫描330.Fixed pattern noise 固定图形噪声331.Photodiode 光电二极管332.Iconoscope 光电摄像管333.Photolelctric effect 光电效应334.Spectral response 光谱响应335.Interline transfer CCD 行间转移型CCD336.Depletion layer 耗尽层plementary metal oxide semi-conductor 互补金属氧化物半导体338.Fundamental absorption edge 基本吸收带339.Valence band 价带340.Transistor 晶体管341.Visible light 可见光342.Spatial filter 空间滤波器343.Block access 块存取344.Pupil compensation 快门校正345.Diffusion current 扩散电流346.Discrete cosine transform 离散余弦变换347.Luminance signal 高度信号348.Quantum efficiency 量子效率349.Smear 漏光350.Edge enhancement 轮廓校正351.Nyquist frequency 奈奎斯特频率352.Energy band 能带353.Bias 偏压354.Drift current 漂移电流355.Clamp 钳位356.Global exposure 全面曝光357.Progressive scan 全像素读出方式358.Full frame CCD 全帧CCD359.Defect correction 缺陷补偿360.Thermal noise 热噪声361.Weak inversion 弱反转362.Shot noise 散粒噪声363.Chrominance difference signal 色差信号364.Color temperature 色温365.Minority carrier 少数载流子366.Image stabilizer 手振校正367.Horizontal CCD 水平CCD368.Random noise 随机噪声369.Tunneling effect 隧道效应370.Image sensor 图像传感器371.Aliasing 伪信号372.Passive 无源373.Passive pixel sensor 无源像素传感器374.Line transfer 线转移375.Correlated double sampling 相关双采样376.Pinned photodiode 掩埋型光电二极管377.Overflow 溢出378.Effective pixel 有效像素379.Active pixel sensor 有源像素传感器380.Threshold voltage 阈值电压381.Source follower 源极跟随器382.Illuminance 照度383.Refraction index 折射率384.Frame integration 帧读出方式385.Frame interline transfer CCD 帧行间转移CCD 386.Frame transfer 帧转移387.Frame transfer CCD 帧转移CCD388.Non interlace 逐行扫描389.Conversion efficiency 转换效率390.Automatic gain control 自动增益控制391.Self-induced drift 自激漂移392.Minimum illumination 最低照度393.CMOS image sensor COMS图像传感器394.MOS diode MOS二极管395.MOS image sensor MOS型图像传感器396.ISO sensitivity ISO感光度。
光学成像的原理Optical imaging is a powerful technique that allows us to visualize objects that are otherwise invisible to the naked eye. Optical imaging works on the principle of light interacting with matter and being reflected or absorbed, ultimately forming an image that can be captured using various devices such as cameras and microscopes.光学成像是一种强大的技术,它使我们能够看到肉眼无法看到的物体。
光学成像是基于光与物质相互作用并反射或被吸收的原理,最终形成可以使用各种设备(如相机和显微镜)捕获的图像。
One key component of optical imaging is the lens, which plays a crucial role in focusing light onto the sensor or film to create a clear and sharp image. Lenses come in various shapes and sizes, each designed to bend and focus light in a specific way to produce an optimal image. The type of lens used can greatly influence the quality of the final image, with factors such as aperture, focal length, and lens material all playing a significant role.光学成像的一个关键组成部分是透镜,它在将光聚焦到传感器或底片上起着至关重要的作用,从而创建清晰和锐利的图像。
第40卷第2期2021年4月红外与毫米波学报J.Infrared Millim.Waves Vol.40,No.2 April,2021文章编号:1001-9014(2021)02-0166-06DOI:10.11972/j.issn.1001-9014.2021.02.005The heterostructure NaGdF4:Yb,Er nanorods loaded on metal-organicframeworks for tuning upconversion photoluminescenceLIU Yi,JIAO Ji-Qing*,LYU Bai-Ze,WANG Jiu-Xing(College of Materials Science and Engineering,National Center of International Joint Research for Hybrid Materials Technology,National Base of International Sci.&Tech.Cooperation,Qingdao University,Qingdao266071,China)Abstract:Multi-component heterostructure nanocomposites can not only inherit the original properties of eachcomponent,but also induce new chemical and electronic properties through the interaction between the compo⁃nents.The heterostructure zeolitic imidazolate framework/NaGdF4:Yb,Er(ZIF-67/NaGdF4:Yb,Er)was pre⁃pared by a stepwise synthesis strategy.And it avoided agglomeration and quenching of upconversion(UC)nanoparticles,and displayed better stability.In the heterostructure nanocomposites,ZIF-67is employed as an en⁃ergy transmission platform under980nm pared to pure NaGdF4:Yb,Er nanorods,the UC photo⁃luminescence of heterostructure ZIF-67/NaGdF4:Yb,Er is tuned from green to red owing to the synergistic effect of each component.Key words:heterostructure,controllable synthesis,nanocomposite,luminescence,upconversionPACS:42异质结构—NaGdF4:Yb,Er纳米棒负载在金属有机框架上以调节上转换光致发光刘毅,焦吉庆*,吕柏泽,王久兴(青岛大学材料科学与工程学院国家杂化材料技术国际联合研究中心国际科学技术合作国家基地,山东青岛266071)摘要:多组分异质结构纳米复合材料不仅可以继承每个组分原有的性能,而且还可以通过组分之间的相互作用诱导出新的化学、电子性能。