beam propagation modeling of modified volume fresnel zone plates fabricated by femtosecond laser direct writing
beam propagation modeling of modified volume fresnel zone plates fabricated by femtosecond laser direct writing
... Beam propagation modeling of modified volume Fresnel zone plates fabricated by femtosecond laser direct writing Pornsak Srisungsitthisunti,1Okan K. Ersoy,2,*and Xianfan Xu11School of ... diffraction by volume Fresnel zone plates (VFZPs) is simulated by the Hankel transform beam propaga-tion method (Hankel BPM). The method utilizes circularly symmetric geometry and small step propagation ... 000.4430, 050.1960, 070.2590.1. INTRODUCTIONThe volume Fresnel zone plate (VFZP) is a focusing deviceconsisting of a number of Fresnel zone plate (FZP) layersinside a transparent medium...
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volume fresnel zone plates fabricated by femtosecond laser direct writing
... letter, volume Fresnel zone plates fabricated inside fused silica using femtosecond laser direct writing are demonstrated. A volume zone plate consists of a number of layers of Fresnel zone plates designed ... of increasing the number of Fresnel zone plates ormodified Fresnel zone plates within a volume, which we call volume zone plates, to achieve high diffraction efficiency.These volume Fresnel zone ... zone plate.A volume Fresnel zone plate consists of a number of layers of zone plates or modified zone plates in a volume of a suitable material, such as fused silica. In this work, the zone plates...
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optimization of modified volume fresnel zone plate
... 2009Modified volume Fresnel zone plates (MVFZPs) fabricated with laser direct writing were optimized for higherdiffraction efficiencies. The Fresnel radii in each layer of a volume zone plate were ... Society of AmericaOCIS codes: 320.7110, 050.1970, 130.3120, 000.4430.1. INTRODUCTIONRecently, modified volume Fresnel zone plates (MVFZPs)consisting of several layers of Fresnel zone plates ... demonstrated high-efficiencyMVFZPs fabricated inside a fused silica by a femtosecond laser direct writing method [1,2]. The MVFZP replacesthe regular Fresnel zones with central rings [1–3]asshown...
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optimization of modified volume fresnel zone plate
... 2009Modified volume Fresnel zone plates (MVFZPs) fabricated with laser direct writing were optimized for higherdiffraction efficiencies. The Fresnel radii in each layer of a volume zone plate were ... Society of AmericaOCIS codes: 320.7110, 050.1970, 130.3120, 000.4430.1. INTRODUCTIONRecently, modified volume Fresnel zone plates (MVFZPs)consisting of several layers of Fresnel zone plates ... demonstrated high-efficiencyMVFZPs fabricated inside a fused silica by a femtosecond laser direct writing method [1,2]. The MVFZP replacesthe regular Fresnel zones with central rings [1–3]asshown...
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laser direct writing of volume modified fresnel
... high NA volume Fresnel zone plates inside a bulk of fused silica by femto-second laser direct writing. A new technique for modified Fresnel zone plates in which only the central ring of each zone ... singlehigh-efficiency phase zone plate. Recently, we presented anew approach of fabricating a number of Fresnel zone plates or modified Fresnel zone plates within a volume, which we called volume zone plates, to ... vol-ume zone plates and 1.8ϫ 10−3for the laser processingconditions used for fabricating high NA volume zone plates. B. Low-Numerical-Aperture Volume Zone Plates Phase-type volume Fresnel zone plates...
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laser direct writing of silicon field effect transistor sensors
... (VD) of 100 mV in solutions with pH values varying from 3 to10. Consistent with p-type accumulation behavior, theFIG. 1. (a) Schematic diagram of laser direct writing of silicon wires. A laser beam ... spot (red dot) where a silicon wire is synthe-sized. Fresnel phase zone plates were used to focus the laser beam. (b)À(d) SEM images of laser direct writtensilicon wires with (b) horizontally ... sensors.Boron-doped silicon wires are fabricated using laser direct writing in combination with chemicalvapor deposition, which has the advantages of precise control of position, orientation, and length,and...
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Cambridge.University.Press.The.Works.of.Archimedes.Volume.1.The.Two.Books.On.the.Sphere.and.the.Cylinder.Translation.and.Commentary.May.2004.pdf
... practices of the critical edition of diagrams.2.3 Purpose and practices of the critical edition of diagramsThe main purpose of the critical edition of diagrams is to reconstruct theearliest form of ... thiscorpus: SC I, II. Division of the remaining works between volumes II and IIIwill be determined by the progress of the reading of the Palimpsest.3.2 The text of Archimedes Writing was crucial to ... (1994).The Works of ArchimedesArchimedes was the greatest scientist of antiquity and one of thegreatest of all time. This book is Volume I of the first fully fledgedtranslation of his works into...
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Bơm ECD-V - P - Outline of Injection Volume Control
... chamber.11Outline of Injection Volume Control22Control of Fuel Injection Volume 2-1 Controlling the Injection Volume End of InjectionCam PlateSolenoidSpill ValveBegins to Lift(Start of Injection)ONOFFCam ... thestart of injection is determined by the position of the cam plate. Fuel is increased or decreased by controlling the timing of the end of injection. The end of injection is the moment when the ... angle (position) of the cam plate. The solenoid spill valve is directly linked to fuel injection volume control, so the responsiveness of the valvestrongly influences the injection volume. If the...
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Hydraulic modeling of open channel flows over an arbitrary 3-d surface and its applications in amenity hydraulic engineering
... surface profile with conditions of Exp-2…………….79 Figure 6.11 Steady water surface profile with conditions of Exp-5…………….80 Figure 6.12 Steady water surface profile with conditions of Exp-6…………….80 ... plot of water surface in 2D simulation of Exp-1 …………….95 Figure 6.35 Carpet plot of water surface in 2D simulation of Exp-2…………… 95 Figure 6.36 Carpet plot of water surface in 2D simulation of ... plot of water surface in 2D simulation of Exp-4…………… 96 Figure 6.38 Carpet plot of water surface in 2D simulation of Exp-5…………… 97 Figure 6.39 Carpet plot of water surface in 2D simulation of...
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MÔ HìNH HOá QUá TRìNH TRAO ĐổI NHIệT ẩM TRONG MáY ấP TRứNG GIA CầM Modeling of heat and mass transfer in chicken egg incubators
... However, it can be expressed in terms of mathematical equations by modeling of the process. The present paper introduces a method of modeling the process of heat and mass transfer in the space ... Modeling of heat and mass transfer in chicken egg incubators Nguyễn Văn Đờng1SUMMARY The relationships between temperature and humidity of the airflow, temperature and water content of ... to determine basic parameters of an incubators that are used for analyzing and synthesizing the incubators control system. Key words: Airflow, water content, modeling, heat and mass transfer,...
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