Soft x-ray laser holography with wavelength resolution *
... We have generated wavelength-resolution soft x-ray holograms using a tabletop setup. The images were numerically reconstructed from a hologram recorded in the surface of a photoresist and digitized with an AFM. This method allows recording of samples without any previous preparation, as required in ...
... We have generated wavelength-resolution soft x-ray holograms using a tabletop setup. The images were numerically reconstructed from a hologram recorded in the surface of a photoresist and digitized with an AFM. This method allows recording of samples without any previous preparation, as required in ...
Spectroscopy - Universität Wien
... (here: EPR spectra are obtained by keeping the microwave frequency constant and varying the magnetic field until resonance is reached) → Effect of the (spinning) nucleus on unpaired electrons: hyperfine coupling tensor, leads to hyperfine splitting (magnetic nucleus with spin I will split electron r ...
... (here: EPR spectra are obtained by keeping the microwave frequency constant and varying the magnetic field until resonance is reached) → Effect of the (spinning) nucleus on unpaired electrons: hyperfine coupling tensor, leads to hyperfine splitting (magnetic nucleus with spin I will split electron r ...
Optical and Electron Microscopy
... with easily obtainable diffraction patterns for structure studies and spectroscopic techniques for chemical analysis of the specimen. The scanning electron microscope (SEM) combines, at least partially, the ease of use of the optical microscope with the analysis capacities of the TEM. The imaging pr ...
... with easily obtainable diffraction patterns for structure studies and spectroscopic techniques for chemical analysis of the specimen. The scanning electron microscope (SEM) combines, at least partially, the ease of use of the optical microscope with the analysis capacities of the TEM. The imaging pr ...
No Slide Title
... light bends as the rays travel through a substance. Therefore, this property is key to optical research. Currently, refractive index measurements are performed primarily with refractrometric instruments. These instruments measure the angle of refraction of light through a material. The refractive in ...
... light bends as the rays travel through a substance. Therefore, this property is key to optical research. Currently, refractive index measurements are performed primarily with refractrometric instruments. These instruments measure the angle of refraction of light through a material. The refractive in ...
Dez. 2016 Publisher: Institute of Physical Chemistry 1 Objective 2
... mirror (bS). As both light beams are reflected by the fixed and the movable mirror they are superimposed and shine through the sample: an interferogram depending on wave length and mirror position is generated. Finally the interferogram is converted to the spectrum using an FFT-algorithm. taneous me ...
... mirror (bS). As both light beams are reflected by the fixed and the movable mirror they are superimposed and shine through the sample: an interferogram depending on wave length and mirror position is generated. Finally the interferogram is converted to the spectrum using an FFT-algorithm. taneous me ...
Paper
... Measurements have been made using this technique for water vapor at 1392.5 nm. Water vapor cells were made containing two different known concentrations. A low concentration cell was filled with dry nitrogen of a known water quantity and pumped down to the Doppler region. A high concentration cell w ...
... Measurements have been made using this technique for water vapor at 1392.5 nm. Water vapor cells were made containing two different known concentrations. A low concentration cell was filled with dry nitrogen of a known water quantity and pumped down to the Doppler region. A high concentration cell w ...
Aalborg Universitet Near-field electrospinning of dielectric-loaded surface plasmon polariton waveguides
... electromagnetic modes, propagating along metal-dielectric interfaces [2] and are bound to the surface due to the exponential decay of the intensity along the normal direction. Many efforts have been made to achieve efficient lateral confinement in order to efficiently guide surface plasmons. Various ...
... electromagnetic modes, propagating along metal-dielectric interfaces [2] and are bound to the surface due to the exponential decay of the intensity along the normal direction. Many efforts have been made to achieve efficient lateral confinement in order to efficiently guide surface plasmons. Various ...
Chemically etched fiber tips for near-field optical microscopy:
... new method is compared with the previous one in which bare fibers were etched. With the new process the meniscus formed by the acid along the fiber does not move during etching, leading to a much smoother surface of the tip cone. Subsequent metallization is thus improved, resulting in better coverag ...
... new method is compared with the previous one in which bare fibers were etched. With the new process the meniscus formed by the acid along the fiber does not move during etching, leading to a much smoother surface of the tip cone. Subsequent metallization is thus improved, resulting in better coverag ...
Nonlinear optics in ultra high Q microcavity 1. Introduction
... Stimulated Raman oscillation was observed by pumping a single WGM and monitoring the transmission using an optical spectrum analyzer. Once the threshold for SRS was exceeded, lasing modes in the 1650 nm band could be observed, in correspondence with the peak Raman gain which occurs down-shifted in f ...
... Stimulated Raman oscillation was observed by pumping a single WGM and monitoring the transmission using an optical spectrum analyzer. Once the threshold for SRS was exceeded, lasing modes in the 1650 nm band could be observed, in correspondence with the peak Raman gain which occurs down-shifted in f ...
Matrix assisted laser desorption/ionization
... Modification of laser optics : laser spot sizes <10 µm Map chemical heterogeneity by tissue type, cell to cell, or even organelle to organelle basis. ...
... Modification of laser optics : laser spot sizes <10 µm Map chemical heterogeneity by tissue type, cell to cell, or even organelle to organelle basis. ...
Biomolecular and cellular research devices.
... many different ways (modes). Various chemical groups (CH3, -OH, -COOH, -NH2 etc.) have specific vibration and rotation frequencies and thus absorb IR light of specific wavelength. ...
... many different ways (modes). Various chemical groups (CH3, -OH, -COOH, -NH2 etc.) have specific vibration and rotation frequencies and thus absorb IR light of specific wavelength. ...
World Journal Of Engineering ENHANCEMENT OF OPTICAL
... fitting are superimposed on the data as a solid curve. The agreement between experimental data and calculated curve is reasonably good. Based on the fact that the period of oscillation of is 180˚, it is suggested that the phenomenon comes from the birefringence. becomes zero at every 90°, where ...
... fitting are superimposed on the data as a solid curve. The agreement between experimental data and calculated curve is reasonably good. Based on the fact that the period of oscillation of is 180˚, it is suggested that the phenomenon comes from the birefringence. becomes zero at every 90°, where ...
Group 2 - Index of
... micrometers), where most molecular absorption bands are. QCLs are the only semiconductor laser able to produce mid-IR wavelength beams at or above room temperature. Excellent for sensing trace gases: sensors based on QCL can have sensitivities in the range of parts per trillion Because QCLs can oper ...
... micrometers), where most molecular absorption bands are. QCLs are the only semiconductor laser able to produce mid-IR wavelength beams at or above room temperature. Excellent for sensing trace gases: sensors based on QCL can have sensitivities in the range of parts per trillion Because QCLs can oper ...
THERMAL IMAGING OF Si, GaAs AND GaN -BASED DEVICES S. Pavageau
... problem one of the key points of their reliability. The MICROTHERM project addresses two aspects in the field of thermal management for electronic devices: - Failure analysis: The aim is to make high resolution thermal imaging in order to easily and precisely locate over-heated areas (hot spots) on ...
... problem one of the key points of their reliability. The MICROTHERM project addresses two aspects in the field of thermal management for electronic devices: - Failure analysis: The aim is to make high resolution thermal imaging in order to easily and precisely locate over-heated areas (hot spots) on ...
Spectrophotometry and its Applications in Microbiology
... will leak out. Because the proteins, salts, and small molecules that make up the cytoplasm of a cell are soluble, they will not contribute to the light scattering of the sample. Thus damage to the cells will result in a decrease in Optical Density of the sample. Pieces of cells that reform after exp ...
... will leak out. Because the proteins, salts, and small molecules that make up the cytoplasm of a cell are soluble, they will not contribute to the light scattering of the sample. Thus damage to the cells will result in a decrease in Optical Density of the sample. Pieces of cells that reform after exp ...
PDF
... while the emitted X-ray fluorescence radiation is detected under a similar angle. On the other hand, (confocal) Raman irradiation and detection usually is carried out by means of an optical system that involves an objective lens that both focuses the primary laser beam and collects the Raman scattere ...
... while the emitted X-ray fluorescence radiation is detected under a similar angle. On the other hand, (confocal) Raman irradiation and detection usually is carried out by means of an optical system that involves an objective lens that both focuses the primary laser beam and collects the Raman scattere ...
PDF Link
... function, t(xʹ, yʹ), which defines the sample field via Us(xʹ, yʹ) = t(xʹ, yʹ)ei(kxxʹ + kyyʹ) when illuminated by a plane wave with wavevector (kx, ky), for example, and is the quantity of interest in our discussion of resolution. ...
... function, t(xʹ, yʹ), which defines the sample field via Us(xʹ, yʹ) = t(xʹ, yʹ)ei(kxxʹ + kyyʹ) when illuminated by a plane wave with wavevector (kx, ky), for example, and is the quantity of interest in our discussion of resolution. ...
O 28: Plasmonics and Nanooptics IV: Light
... of Energy Research and Physical Technologies, TU Clausthal, Leibnizstraße 4, 38678 Clausthal-Zellerfeld, Germany Coupling of optical excitations in dye molecules with plasmonic excitations in metallic nanostructures holds the potential to provide control over light-matter interaction at a nanoscale ...
... of Energy Research and Physical Technologies, TU Clausthal, Leibnizstraße 4, 38678 Clausthal-Zellerfeld, Germany Coupling of optical excitations in dye molecules with plasmonic excitations in metallic nanostructures holds the potential to provide control over light-matter interaction at a nanoscale ...
The Laser Marketplace
... Cameras used by Search and Rescue team inside collapsed dormitory building in Oklahoma City (no lights): Prof. Robin Murphy (SSR-RC) Laser Illuminator shows much finer detail (can see under bed) ...
... Cameras used by Search and Rescue team inside collapsed dormitory building in Oklahoma City (no lights): Prof. Robin Murphy (SSR-RC) Laser Illuminator shows much finer detail (can see under bed) ...
XRD - Shodhganga
... The sensitivity of the DTA/DSC baseline total heat capacity can be exploited to determine the specific heat of unknowns. The procedure is outlined in Fig 3.2.4. First, an empty sample container versus an empty reference container is run. A known mass of standard material (our standard material is th ...
... The sensitivity of the DTA/DSC baseline total heat capacity can be exploited to determine the specific heat of unknowns. The procedure is outlined in Fig 3.2.4. First, an empty sample container versus an empty reference container is run. A known mass of standard material (our standard material is th ...
Surface Texture Effect on Luster of Anodized Aluminum
... The Chromatic Confocal technique uses a white light source, where light passes through an objective lens with a high degree of chromatic aberration. The refractive index of the objective lens will vary in relation to the wavelength of the light. In effect, each separate wavelength of the incident wh ...
... The Chromatic Confocal technique uses a white light source, where light passes through an objective lens with a high degree of chromatic aberration. The refractive index of the objective lens will vary in relation to the wavelength of the light. In effect, each separate wavelength of the incident wh ...
Slide 1
... Short questions and problems 1 • Explain briefly: – Why is small magnetic field used during Hall mobility measurement? – What are the two major factors that affect mobility? Choose one of these factors and design a device to reduce the scattering factor drastically – Why is optical phonon scatterin ...
... Short questions and problems 1 • Explain briefly: – Why is small magnetic field used during Hall mobility measurement? – What are the two major factors that affect mobility? Choose one of these factors and design a device to reduce the scattering factor drastically – Why is optical phonon scatterin ...
Compensated lens-free light field microscopy
... Lens-free light field microscopy (LLFM) is a holographic microscope with large field of view which produces an image of micro-range resolution using an interferometric reconstruction method [1]. The quality of LLFM imaging is limited due to the effect of image degradation factors such as (1) optical ...
... Lens-free light field microscopy (LLFM) is a holographic microscope with large field of view which produces an image of micro-range resolution using an interferometric reconstruction method [1]. The quality of LLFM imaging is limited due to the effect of image degradation factors such as (1) optical ...
2011 Research Poster
... the optical trap, we diffract atoms by passing a moving standing wave through the condensate. The standing wave acts as a diffraction grating that diffracts atoms, giving them a momentum kick as first or higher order diffractions of the condensate. We split the beam into two parts by the polarizing ...
... the optical trap, we diffract atoms by passing a moving standing wave through the condensate. The standing wave acts as a diffraction grating that diffracts atoms, giving them a momentum kick as first or higher order diffractions of the condensate. We split the beam into two parts by the polarizing ...
Circularly Polarized Near-field Scanning Optical Microscope for
... the same side of the sample of the laser spot or to the compressible strips at the opposite side of the sample across the bulk region. The diffusion current is balanced by the Hall current, leading to the change of the chemical potential of the edge states [20]. This change of the chemical potential ...
... the same side of the sample of the laser spot or to the compressible strips at the opposite side of the sample across the bulk region. The diffusion current is balanced by the Hall current, leading to the change of the chemical potential of the edge states [20]. This change of the chemical potential ...