optical properties of water
Inverse modeling for retrieval of optical properties of sea water and atmospheric aerosols from remote sensing reflectance
... important optical properties of both the atmosphere and the ocean The optical properties from the ocean can be used to relate to water quality parameters such as turbidity The optical properties of ... the types of water in the area of study It is of interest to examine how far the water sampled deviate from case waters where most algorithms have been developed to retrieve optical properties ... properties of water is usually expressed as a linear sum of the contributions from various constituents including water itself 2.4.1 Absorption coefficient of Seawater Absorption of light by sea water...
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Effects of simultaneous doping with boron and phosphorous on the structural, electronic and optical properties of silicon nanostructures
... position of Fig 11), approaching asymptotically the value of the band-gap of the undoped Si-nw This is another indication of how doping can modify the electronic and optical properties of the Si ... systematic analysis of the effect of the B and P codoping in Si-nw, concentrating not only on the structural properties but also on how doping influences the electronic and optical properties Here, ... the electronic properties of the Si-nc are influenced by the insertion of more and more impurities We call this insertion of several impurities multidoping Fig shows how the FE of a large Si147H100-nc...
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Tripathy, optical properties of nano silicon
... 1⋅82 Optical properties of nano-silicon 289 clear distinction between hydrogen free and hydrogenated clusters Figure Plots of gap energy as a function of number of Si atoms and effective size of ... Raman spectra of (a) nanocrystalline Si prepared by pulsed plasma processing and (b) porous silicon prepared by anodic etching using 488 nm line of Ar+ laser Optical properties of nano-silicon ... nano-silicon 287 time or with decreasing the thickness of the a-Si : H layer This results in termination of dangling bonds of the surface Si atoms of nanocrystalline silicon Nanocrystalline silicon...
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First principles optical properties of silicon and germanium nanowires
... simple EMA models Optical properties of SiNWs and GeNWs In Section of the present paper, we aim to point out the importance of the many-body effects on the optical response of some of the studied ... onset of optical absorption is found only in the case of GeNWs and not in the case of SiNWs With the inclusion of the excitonic effects (bottom panels) we see that an important transfer of the ... different geometrical structure of wires grown with different orientation Finally the comparison of the optical spectra of SiNWs and GeNWs with diameters of the order of 0.8 nm, demonstrates that...
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Electronic structure and magneto optical properties of solids v antonov, b harmon, a yaresko
... Magneto -optical properties of magnetic multilayers 2.2.1 Magneto -optical properties of Co/Pd systems 2.2.2 Magneto -optical properties of Co/Pt multilayers 2.2.3 Magneto -optical properties of Co/Cu ... physical properties of layered structures including the MO properties Chapter of the book presents the MO properties of f band ferromagnetic materials Sections 3.1 devoted to the MO properties of 4f ... AND MAGNETO -OPTICAL PROPERTIES OF SOLIDS TLFeBOOK This page intentionally left blank TLFeBOOK Electronic Structure and Magneto -Optical Properties of Solids by Victor Antonov Institute of Metal Physics,...
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synthesis and optical properties of colloidal tungsten oxide nanorods
... COMMUNICATIONS Comparing the intensities of the (010) and (014) peaks of the sample with those of the bulk W18O49, it was found that the relative intensity of (010) has been dramatically increased ... reaction temperature of 250 °C (Figure 3a).19 Longer nanorods of 130 ( 30 nm in length (aspect ratio ≈ 20) were prepared at 270 °C by using 12 equiv of oleylamine instead of 16 equiv (Figure 3b).19 ... the intensity of this peak increases relative to that of UV emission as the length of nanorods increases A similar PL pattern with two emission maxima, yet at much lower energies of 2.8 and 2.3...
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optical properties of solids
... studies of electronic properties of solids If we think of the optical properties for various classes of materials, it is clear from Fig 3.3 that major differences will be found from one class of materials ... at very low frequencies the optical properties of semiconductors exhibit a metal-like behavior, while at very high frequencies their optical properties are like those of insulators A characteristic ... Fundamentals of Semiconductors, Chapter • Wolfe, Holonyak and Stillman, Physical Properties of Semiconductors, Chapter 5.1 The Absorption Coefficient Measurement of the absorption of light is one of the...
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optical properties of epitaxial bifeo3thin film
... growth quality of the BFO thin film for further optical measurement and analysis Page of SE measurements were taken to investigate the optical properties of the BFO film Considering the optical investigation ... details Key Laboratory of Micro and Nano Photonic Structures, Ministry of Education, Shanghai Engineering Research Center of Ultra-Precision Optical Manufacturing, Department of Optical Science and ... layer/film structure, we should firstly obtain the optical response of the STO substrate and SRO buffer layer and then research the optical properties of the BFO thin film The ellipsometric spectra...
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evaluation of shape and size effects on optical properties of zno pigment
... large scale, and all of the nanorods have diameters of about 50 nm and lengths of 300 nm Fig (i–k) exhibits the FESEM images of nanoparticle-decorated ZnO pigment The surface of ZnO pigment was ... studies of multiple-scattering effects were carried out for randomly rough surfaces characterized by rms heights of the order of 5–10 nm, and transverse correlation lengths of the order of 100 ... the scattering properties of ice particles [33] The higher surface roughness of nanoparticle-decorated ZnO led to multiple scattering and increasing of the reflectance Presence of nanoparticles...
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fabrication and optical properties of ordered sea urchin-like zno
... the well-crystallized particles of prepared ZnO Fig 1b shows the UV–visible optical absorption characteristics of the sea urchin-like ZnO Excitonic absorption peak of the ZnO sample is at about ... analysis results of Fig 2d For analyzing the photoelectric properties of the sea urchin-like ZnO nanostructures, simple battery devices were fabricated Fig shows the I–V curve of the sea urchin-like ... (a) and UV–visible optical absorption characteristics (b) of the sea urchin-like ZnO nanostructures Fig SEM images (a,b), TEM image (c), HRTEM image (d) and SAED pattern (e) of the sea urchin-like...
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optical properties of nanostructured metallic systems studied with the finite-difference time-domain method
... metal thickness and the study of optical properties of metal coated microspheres), the optical properties of metamaterials made with stacked hole arrays and the guiding of metallic waveguides (and ... the seed and the feed of this thesis It is a long list of collaborators working in the groups of Prof T.W Ebbesen, Prof S.I Bozhevolnyi, Prof D Bäuerle, Prof J.R Kreen, Prof A Dereux and A.V Kats ... ‘‘meta-materials’’ because their optical response may be different than the optical response of its bulk components In this chapter we investigate the optical response of one of these metamaterials presenting...
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synthesis and optical properties of au-ag alloy nanoclusters with controlled composition, p26
... the reduction potential of Ag (0.8 V) is smaller that the reduction potential of Au (1.5 V), the velocity of reduction of Au ions is faster than the velocity of reduction of Ag ions So, an increasing ... indices of gold and silver [42] were included in the data bank of the MieCalc program [43] A fixed refractive index value (1.33) [44] of water was used in the calculations For calculating the optical ... reduction of HAuCl4 does not permit a complete dissolution of silver salts and therefore reduction of Ag+ ions due to spontaneous formation of AgCl(s) Considering the solubility product (Kps) of AgCl(s)...
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Báo cáo sinh học: " Influence of helium-ion bombardment on the optical properties of ZnO nanorods/p-GaN light emitting diodes" pot
... physical properties of ZnO nanostructures [19] The irradiation changes the amount of defects in ZnO nanorods resulting in changes in the optical properties of ZnO The effect of the ion irradiation of ... minor effect on optical properties of the LED devise after irradiation with moderate fluences Conclusion In summary, the influence of He+ ion irradiation on the optical properties of ZnO nanorods ... Influence of helium-ion bombardment on the optical properties of ZnO nanorods/p-GaN light-emitting diodes N H Alvi*1, S Hussain1, J Jensen2, O Nur1, and M Willander1 Department of Science and...
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báo cáo hóa học:" Influence of helium-ion bombardment on the optical properties of ZnO nanorods/p-GaN light emitting diodes" pdf
... physical properties of ZnO nanostructures [19] The irradiation changes the amount of defects in ZnO nanorods resulting in changes in the optical properties of ZnO The effect of the ion irradiation of ... minor effect on optical properties of the LED devise after irradiation with moderate fluences Conclusion In summary, the influence of He+ ion irradiation on the optical properties of ZnO nanorods ... Influence of helium-ion bombardment on the optical properties of ZnO nanorods/p-GaN light-emitting diodes N H Alvi*1, S Hussain1, J Jensen2, O Nur1, and M Willander1 Department of Science and...
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Báo cáo toán học: " The structural and optical properties of GaSb/InGaAs type- quantum dots grown on InP (100) substrate" ppt
... dependence of the PL peak energies over the third root of the excitation density [20] The inset of Figure 3b shows the linear dependence of the PL peak energies and the third root of the excitation ... substrate has a strong optical absorption in the range of 1.3 to approximately 1.55 µm which is the low-loss optical fiber window All of these features will promote the application of QD-FET on quantum ... the optical spectra of self-assembles InP quantum dots Phys Rev B 2002, 66:235309 14 Ribeiro E, Maltez RL, Carvalho W Jr, Ugarte D, Medeiros-Ribeiro G: Optical and structural properties of InAsP...
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Báo cáo toán học: " Structural and optical properties of ZnS thin films deposited by RF magnetron sputtering" potx
... migration of the sputtered atoms, thus forming a denser film with larger grains and lower defects Optical properties The optical transmittance spectra in the wavelength range of 200 to 1,100 nm of ZnS ... http://www.nanoscalereslett.com/content/7/1/26 temperatures on the structural properties of the films has been investigated, and the optical properties of the films have also been analyzed Methods Synthesis ZnS ... 350°C However, the FWHM value of the film prepared at 400°C increased to 0.154°, indicating the deterioration of the crystallinity of the films The mean crystallite sizes of the films were about 22.3,...
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Báo cáo hóa học: " Optical properties of exfoliated MoS2 coaxial nanotubes - analogues of graphene" pdf
... taking them out of the dry box, which provides a water- bilayer phase of MoS2 To obtain single layers of MoS2 in water suspension, the material was washed repeatedly with distilled water and centrifuged ... micrograph of the MoS2 nanotube during the first stage of the exfoliation process; (d) TEM micrograph of the MoS2 single layers as a final stage of nanotube exfoliation; (e) AFM image (contact mode) of ... (Figure 3) At the beginning, every vial consists of 0.5 mL of Li-MoS2, diluted with 1.5 mL of distilled water and sonicated for The UV-Vis spectrum of the initial solution is shown in Figure 3a...
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Báo cáo hóa học: " Effects of silver impurity on the structural, electrical, and optical properties of ZnO nanowires" doc
... the optical and electrical performances of the materials We focused on the temperature-dependent PL measurements of various silver-doped ZnO (SZO) NWs to reveal the role of Ag acceptor in the optical ... Resistance (M ) Page of Ag concentration (wt %) Figure Physical properties of varios SZO NW (a) Tuned resistances of un-doped, 1SZO, 3SZO, and 5SZO NWs, the resistances of the SZO NW are measured ... structure because of both low Ea and optimized quantity of substitution function of Ag+ [19] However, stress of lattices structure on both 3SZO and 5SZO NWs is very impressive because a lot of Ag interstitials...
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Tìm thêm: xác định các nguyên tắc biên soạn khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn khảo sát chương trình đào tạo gắn với các giáo trình cụ thể xác định thời lượng học về mặt lí thuyết và thực tế tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu nội dung cụ thể cho từng kĩ năng ở từng cấp độ xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ mở máy động cơ lồng sóc các đặc tính của động cơ điện không đồng bộ hệ số công suất cosp fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến tốc độ rôto n fi p2 động cơ điện không đồng bộ một pha thông tin liên lạc và các dịch vụ phần 3 giới thiệu nguyên liệu chỉ tiêu chất lượng theo chất lượng phẩm chất sản phẩm khô từ gạo của bộ y tế năm 2008 chỉ tiêu chất lượng 9 tr 25