Microscopes - Biozentrum
... Phase contrast microscopy is an optical microscopy illumination technique in which small phase shifts in the light passing through a transparent specimen are converted into amplitude or contrast changes in the image. A phase contrast microscope does not require staining to view the slide. This type ...
... Phase contrast microscopy is an optical microscopy illumination technique in which small phase shifts in the light passing through a transparent specimen are converted into amplitude or contrast changes in the image. A phase contrast microscope does not require staining to view the slide. This type ...
Fiber Optic Switches
... MEMS Switches Acronym. MEMS - Micro-electromechanical system Technology. MEMS are miniature devices fabricated with a process called micro machining. The structures range in dimensions from a few hundred microns to millimeters, and are mostly fabricated on silicon substrates, using standard semicon ...
... MEMS Switches Acronym. MEMS - Micro-electromechanical system Technology. MEMS are miniature devices fabricated with a process called micro machining. The structures range in dimensions from a few hundred microns to millimeters, and are mostly fabricated on silicon substrates, using standard semicon ...
Self-assembly of three-dimensional photonic-crystals with
... addition to hexagonal symmetry, centered rectangular symmetry can also occur. However, in this experiment, because the pattern spacing is large in comparison to the size of the polystyrene spheres, the substrate patterns have no effect on the symmetry of the colloidal crystalline films. ...
... addition to hexagonal symmetry, centered rectangular symmetry can also occur. However, in this experiment, because the pattern spacing is large in comparison to the size of the polystyrene spheres, the substrate patterns have no effect on the symmetry of the colloidal crystalline films. ...
2015/1/6 1 Chapter 28 Liquid Chromatography High
... 2) Adsorption or liquid-solid chromatography: replaced by normal phase. 3) Ion-exchange or ion chromatography: for ionic compounds. 4) Size-exclusion chromatography: for high MW compounds (polymers). 5) Affinity chromatography: for biomolecules. 6) Chiral chromatography: for separating of enantiomer ...
... 2) Adsorption or liquid-solid chromatography: replaced by normal phase. 3) Ion-exchange or ion chromatography: for ionic compounds. 4) Size-exclusion chromatography: for high MW compounds (polymers). 5) Affinity chromatography: for biomolecules. 6) Chiral chromatography: for separating of enantiomer ...
S U P E R -R E S O LV... Scientific Background on the Nobel Prize in Chemistry 2014
... Here, α is half the aperture angle under which the point source is observed and n is the index of refraction of the microscopy medium. Eq. 1 quantifies Abbe’s limit in the lateral plane and huge efforts have been made to optimize its parameters. 2. Early wrestling with the diffraction limit of opti ...
... Here, α is half the aperture angle under which the point source is observed and n is the index of refraction of the microscopy medium. Eq. 1 quantifies Abbe’s limit in the lateral plane and huge efforts have been made to optimize its parameters. 2. Early wrestling with the diffraction limit of opti ...
super-resolved fluorescence microscopy
... Here, α is half the aperture angle under which the point source is observed and n is the index of refraction of the microscopy medium. Eq. 1 quantifies Abbe’s limit in the lateral plane and huge efforts have been made to optimize its parameters. 2. Early wrestling with the diffraction limit of opti ...
... Here, α is half the aperture angle under which the point source is observed and n is the index of refraction of the microscopy medium. Eq. 1 quantifies Abbe’s limit in the lateral plane and huge efforts have been made to optimize its parameters. 2. Early wrestling with the diffraction limit of opti ...
Cubic SiC Nanowires: Growth, Characterization and
... selectivity and compatibility with biological systems. Nanostructures may present very different characteristic and novel properties with respect to the corresponding bulk material, and they have important physical and chemical properties, in particular large specific surface/volume ratio and quantu ...
... selectivity and compatibility with biological systems. Nanostructures may present very different characteristic and novel properties with respect to the corresponding bulk material, and they have important physical and chemical properties, in particular large specific surface/volume ratio and quantu ...
Implementing the Theory of Sum Frequency Generation Vibrational
... at the solid/vacuum interface including studies of CO (9 – 11), formic acid, (12) and cyclohexene (13) on catalytically important surfaces such as platinum, rhodium, and nickel. Atmospherically related problems have resulted in a number of studies (14) of the structure of surface water and ice (15), ...
... at the solid/vacuum interface including studies of CO (9 – 11), formic acid, (12) and cyclohexene (13) on catalytically important surfaces such as platinum, rhodium, and nickel. Atmospherically related problems have resulted in a number of studies (14) of the structure of surface water and ice (15), ...
Chemical Vapor Deposition (CVD)
... coatings, powders, fibers and monolithic components. • This technique is often used in many thin film applications. • By varying the experimental conditions—substrate material, substrate temperature, composition of the reaction gas mixture, total pressure gas flows, etc.— materials with different pr ...
... coatings, powders, fibers and monolithic components. • This technique is often used in many thin film applications. • By varying the experimental conditions—substrate material, substrate temperature, composition of the reaction gas mixture, total pressure gas flows, etc.— materials with different pr ...
Get PDF - OSA Publishing
... reasonable signal can still be measured are considerably larger than those shown in Fig. 2(a). This is caused by the fact that the 6 mm diameter lens on the detector collects the radiation from a larger area and concentrates it to create a higher field-strength. In the electro-optic detection method ...
... reasonable signal can still be measured are considerably larger than those shown in Fig. 2(a). This is caused by the fact that the 6 mm diameter lens on the detector collects the radiation from a larger area and concentrates it to create a higher field-strength. In the electro-optic detection method ...
Plasmonic Nanopore for Electrical Profiling of
... calculations can be found in the Supporting Information. The calculated intensity map is presented in Figure 3b, and it is clear that the experimental results closely match the theoretical calculations. No fitting parameters were used, and the minor differences between the experimental results and the ...
... calculations can be found in the Supporting Information. The calculated intensity map is presented in Figure 3b, and it is clear that the experimental results closely match the theoretical calculations. No fitting parameters were used, and the minor differences between the experimental results and the ...
Examiners` Report November 2012 GCSE Chemistry
... inexplicably multiplied the numbers rather than dividing them. Some candidates were able to work out the ratio of 0.002:0.004 or as 1:2, but often did not take it further and so did not score the third mark for the empirical formula PbO2. Some lost the final mark by giving the empirical formula as P ...
... inexplicably multiplied the numbers rather than dividing them. Some candidates were able to work out the ratio of 0.002:0.004 or as 1:2, but often did not take it further and so did not score the third mark for the empirical formula PbO2. Some lost the final mark by giving the empirical formula as P ...
SiGe nanomembrane quantum-well infrared photodetectors
... show how the favorable growth conditions enabled by the lattice-matched NM substrates lead to improved device performance. An important challenge related to these devices is how to achieve efficient vertical current injection into and extraction from such ultrathin NMs. In typical multiple-QW devices, ...
... show how the favorable growth conditions enabled by the lattice-matched NM substrates lead to improved device performance. An important challenge related to these devices is how to achieve efficient vertical current injection into and extraction from such ultrathin NMs. In typical multiple-QW devices, ...
Fabrication of Surface Plasmon Resonators by Nanoskiving Single
... ribbon-like structures with diameters ranging from 1 to 40 µm (Figure 2A). The thickness of these microstructures was usually between 90 and 200 nm. The inset in Figure 2A is a magnified image of a representative microplate: it is 25 µm in diameter and ca. 100 nm thick. This thickness corresponds to ...
... ribbon-like structures with diameters ranging from 1 to 40 µm (Figure 2A). The thickness of these microstructures was usually between 90 and 200 nm. The inset in Figure 2A is a magnified image of a representative microplate: it is 25 µm in diameter and ca. 100 nm thick. This thickness corresponds to ...
2. Electro-optics of Nematic Liquid Crystals
... ‘‘mixed systems’’ capable of field-induced reorientation have also been employed for electrooptical studies and applications ferroelectric liquid crystals, generally switch faster than nematic cells ...
... ‘‘mixed systems’’ capable of field-induced reorientation have also been employed for electrooptical studies and applications ferroelectric liquid crystals, generally switch faster than nematic cells ...
Graphene plasmon propagation on corrugated
... loss is greater than the raised scattering loss for thin corrugated layers, but the scattering loss grows as the corrugated layer thickens and eventually exceeds the reduced ohmic loss. The two processes balance at the minimum of Imneff in Figs. 4(b) and 4(d), where GPs acquire maximum propagatio ...
... loss is greater than the raised scattering loss for thin corrugated layers, but the scattering loss grows as the corrugated layer thickens and eventually exceeds the reduced ohmic loss. The two processes balance at the minimum of Imneff in Figs. 4(b) and 4(d), where GPs acquire maximum propagatio ...
Direct Characterization of Plasmonic Slot Waveguides
... Thus, filtered images reveal the propagating slot mode with the decreasing amplitude (Figure 4h) and linearly advancing phase (Figure 4i) of Ez field. As expected from the mode-field distribution (Figure 1a, inset), Ez field magnitude is zero in the middle and opposite in sign on both sides of the waveg ...
... Thus, filtered images reveal the propagating slot mode with the decreasing amplitude (Figure 4h) and linearly advancing phase (Figure 4i) of Ez field. As expected from the mode-field distribution (Figure 1a, inset), Ez field magnitude is zero in the middle and opposite in sign on both sides of the waveg ...
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... SPP phase matching conditions are satisfied. The SPP dip starts at h ¼ 42 and k ¼ 1000 nm and rapidly blue-shifts with increasing the angle of incidence. However, dispersion curve of the SPP component is considerably red-shifted comparing to that of SPP at the reference gold film. This is due to th ...
... SPP phase matching conditions are satisfied. The SPP dip starts at h ¼ 42 and k ¼ 1000 nm and rapidly blue-shifts with increasing the angle of incidence. However, dispersion curve of the SPP component is considerably red-shifted comparing to that of SPP at the reference gold film. This is due to th ...
Introduction to super-resolution microscopy
... medical fields since optical microscopy allows us to image and investigate microorganisms, cells, tissues and organs in living conditions. With the aid of suitable fluorescent probes, microscopic images provide not only the structural information of the samples, but also a variety of information from ...
... medical fields since optical microscopy allows us to image and investigate microorganisms, cells, tissues and organs in living conditions. With the aid of suitable fluorescent probes, microscopic images provide not only the structural information of the samples, but also a variety of information from ...
Experimental investigation of the propagation properties of bloch
... Results: The longest propagation length is achieved when the multilayer is designed to have the dispersion curve positioned close to the middle of the photonics band gap. We measure a Bloch surface wave mode of propagation length 3.24 mm and of an effective refractive index contrast 0.15. Conclusion ...
... Results: The longest propagation length is achieved when the multilayer is designed to have the dispersion curve positioned close to the middle of the photonics band gap. We measure a Bloch surface wave mode of propagation length 3.24 mm and of an effective refractive index contrast 0.15. Conclusion ...
Ultrafast Acoustic Phonon Ballistics in Semiconductor Heterostructures
... terms are due to interference between induced lens contributions at different depths. The solid curves in Fig. 3 show the simulation for a slowly decaying s.texit d induced stress using the photoelastic coefficients from [7]. Although the general features are reproduced, there are major discrepancie ...
... terms are due to interference between induced lens contributions at different depths. The solid curves in Fig. 3 show the simulation for a slowly decaying s.texit d induced stress using the photoelastic coefficients from [7]. Although the general features are reproduced, there are major discrepancie ...
Optical Fredericks Transition in a Nematic Liquid Crystal Layer
... of incidence. Other alignment techniques, such as micron rubbing by microsphere, micro-contact printing, ion beam bombardment, are available as well (Yilmaz et al. ...
... of incidence. Other alignment techniques, such as micron rubbing by microsphere, micro-contact printing, ion beam bombardment, are available as well (Yilmaz et al. ...
Relation between s-Polarized and p-Polarized Internal Reflection
... orientation of chemical bonds in thin films.3,6,8-10,12,13 sPolarized light has the electric field component, Es, perpendicular to the plane of incidence and results in an evanescent wave, Ey, parallel with the internal reflection element (IRE) surface (Figure 1). p-Polarized light has the electric ...
... orientation of chemical bonds in thin films.3,6,8-10,12,13 sPolarized light has the electric field component, Es, perpendicular to the plane of incidence and results in an evanescent wave, Ey, parallel with the internal reflection element (IRE) surface (Figure 1). p-Polarized light has the electric ...
A Tunable Fabry-Perot-Interferometer for 3
... Careful consideration was given in choosing the materials used as the low and high index optical layers in the FPI as well as their deposition processes to insure compatibility with those required for patterning the electrodes and the wafers. Optical layers, without further treatment, would not surv ...
... Careful consideration was given in choosing the materials used as the low and high index optical layers in the FPI as well as their deposition processes to insure compatibility with those required for patterning the electrodes and the wafers. Optical layers, without further treatment, would not surv ...