搜索结果: 1-15 共查到“化学 optical”相关记录24条 . 查询时间(0.343 秒)
Sculpting optical microstructures with slight changes in chemistry
Sculpting optical microstructures slight changes chemistry
2017/4/27
In 2013, materials scientists at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) and the Wyss Institute of Biologically Inspired Engineering grew...
A liquid nitrogen immersion cryostat for optical measurements
liquid nitrogen immersion cryostat optical measurements
2016/5/23
A liquid nitrogen immersion cryostat has been developed for optical measurements. Liquid nitrogen in the sample chamber is kept free of bubbles and schlieren by the use of a cooling jacket of sacrific...
Studies of the Electronic Structure of Metallocene-based Second-order Non-linear Optical Dyes
Electronic Structure Metallocene Second-order Non linear Optical Dyes
2016/5/23
This paper describes a simple orbital picture for understanding the optical transitions and the second-order nonlinear optical response of metallocene-based chromophores of the form metallocene-(pi-br...
Large Molecular Third-Order Optical Nonlinearities in Polarized Carotenoids
Carotenoids Molecular Structure Optics and Photonics Photochemistry Spectrum Analysis
2016/5/23
Garito and co-workers have suggested a mechanism to dramatically increase the second hyperpolarizability, gamma, in linear pi-electron-conjugated molecules. Polarization is introduced that leads to a ...
Excitonic effects from geometric order and disorder explain broadband optical absorption in eumelanin
geometric order disorder explain broadband optical absorption melanin
2014/9/24
Eumelanin is a ubiquitous biological pigment, and the origin of its broadband absorption spectrum has long been a topic of scientific debate. Here, we report a first-principles computational investiga...
REGISTRATION OF OPTICAL DATA WITH HIGH-RESOLUTION SAR DATA: A NEW IMAGE REGISTRATION SOLUTION
Image Registration Multisensor Optical Data SAR TerraSAR-X Pléiades-1a, Automation HyPARE Algorithm
2014/4/24
Accurate image-to-image registration is critical for many image processing workflows, including georeferencing, change detection, data fusion, image mosaicking, DEM extraction and 3D modeling. Users n...
Theory of polarizable liquid crystals: Optical birefringence
polarizable liquid crystals Optical birefringence
2014/9/24
The theory of polarizable anisotropic fluids is developed on the basis of a model fluid consisting of anisotropic Drude oscillators with embedded permanent dipoles. A matrix theory is developed. The d...
A novel optical membrane with extended detection range of pH
pH sensor Bromocresol Green Malachite Green Oxalate
2010/12/3
A pH optical sensor was developed based on the use of a mixture of Malachite Green Oxalate and Bromocresol Green indicators immobilized in a triacetylcellulose membrane, which had been previously hydr...
A novel optical membrane with extended detection range of pH
Mixed reagents pH sensor Bromocresol Green Malachite Green Oxalate
2010/10/19
A pH optical sensor was developed based on the use of a mixture of Malachite Green Oxalate and
Bromocresol Green indicators immobilized in a triacetylcellulose membrane, which had been previously hyd...
Optical properties of canopies of the tropical seagrass Thalassia testudinum estimated by a three-dimensional radiative transfer model
Optical properties of canopies tropical seagrass Thalassia testudinum three-dimensional radiative transfer model
2014/4/17
Three-dimensional models of seagrass canopies were constructed by treating leaves as flexible strips that fall under their own weight into naturalistic canopy structures. Canopy structures incorporate...
Sensor Properties and Surface Characterization of Silver-deposited SPR Optical Fibers
Sensor Properties and Surface Characterization of Silver-deposited SPR Optical Fibers
2010/9/17
The response curves and sensor properties of silver-deposited optical fibers with Ag film thicknesses of 20.0 − 80.0 nm based on surface plasmon resonance (SPR) were investigated. The response o...
Separation of Optical Isomers in Capillary Chromatography Using a Poly(tetrafluoroethylene) Capillary Tube and an Aqueous–Organic Mixture Carrier Solution
Separation Optical Isomers in Capillary Chromatography tetrafluoroethylene
2010/9/13
Capillary chromatography for the separation of optical isomers was developed using an untreated poly(tetrafluoroethylene) capillary tube and a water–hydrophilic/hydrophobic organic solvent mixture as ...
Influence of AlCl3 on the optical properties of new synthesized 3-armed poly(methyl methacrylate) films
Optical constants optical band gap dispersion parameters thin films ATRP PMMA
2010/10/14
Three-armed poly(methyl methacrylate)[PMMA] was synthesized by atom transfer radical polymerization at 100 °C using benzene-1,3,5-triyl tris(4-(bromomethyl) benzoate as 3-armed initiator and a cuprous...
Electrochemical and optical properties of an azo dye based conducting copolymer
Conducting polymers copolymers dithienylpyrrole azobenzene EDOT
2010/4/8
The electrochemical and optical properties of a novel conducting copolymer called poly(2,5'-dimethyl-[4-(2,5-di-thiophen- 2-yl-pyrrol-1-yl)-phenyl]azobenzene-co-(3,4-ethylenedioxythiophene)) (poly(1-c...
Alpine lake optical properties as sentinels of dust deposition and global change
Alpine lake optical properties sentinels of dust deposition global change
2014/4/17
We characterized dissolved organic matter in La Caldera, an alpine lake in Sierra Nevada (Spain), and watersoluble organic compounds (WSOC) in dry and wet deposition originating from Saharan and marin...