Pixel level optical-transfer-function design based on the surface
... pixel level. The whole aperture design is based on the bull’s eye structure. It composes of a central hole (diameter of 300 nm) and periodic groove (period of 560 nm) on a 340 nm thick gold layer. We show, with both simulation and experiment, that different types of optical transfer functions (notch ...
... pixel level. The whole aperture design is based on the bull’s eye structure. It composes of a central hole (diameter of 300 nm) and periodic groove (period of 560 nm) on a 340 nm thick gold layer. We show, with both simulation and experiment, that different types of optical transfer functions (notch ...
HOLOGRAPHY, 1948-1971
... in an area which by ordinary photography would be sufficient for one. From then on progress became very rapid. The most spectacular result of the first year was the holography of three dimensional objects, which could be seen with two eyes. Holography was of course three dimensional from the start, ...
... in an area which by ordinary photography would be sufficient for one. From then on progress became very rapid. The most spectacular result of the first year was the holography of three dimensional objects, which could be seen with two eyes. Holography was of course three dimensional from the start, ...
Disorder-Enhanced Imaging with Spatially Controlled Light
... Despite their enormous advancements, conventional optical elements -no matter how well designed- can offer only a limited amount of control over light. In as early as 1873 Abbe[3] discovered that lens-based microscopes are unable to resolve structure smaller than half the light’s wavelength. This re ...
... Despite their enormous advancements, conventional optical elements -no matter how well designed- can offer only a limited amount of control over light. In as early as 1873 Abbe[3] discovered that lens-based microscopes are unable to resolve structure smaller than half the light’s wavelength. This re ...
Practical uses of femtosecond laser micro
... increasingly important in recent years for many fields, including micro-optics, micro-electronics, micro-biology, and micro-chemistry. Laser ablation, because of its non-contact nature, allows the micromachining and surface patterning of materials with minimal mechanical and thermal deformation. It ...
... increasingly important in recent years for many fields, including micro-optics, micro-electronics, micro-biology, and micro-chemistry. Laser ablation, because of its non-contact nature, allows the micromachining and surface patterning of materials with minimal mechanical and thermal deformation. It ...
MONABIPHOT_All_Courses_2016
... Sessions 1 to 10: Basic Maxwellian optics from the molecular to the macroscopic scale - Microscopic model of light-matter interaction: the elastically bound electrons and its implications. Radiating properties of an ensemble of oscillating dipoles with near-field and farfield emission. - Macroscopic ...
... Sessions 1 to 10: Basic Maxwellian optics from the molecular to the macroscopic scale - Microscopic model of light-matter interaction: the elastically bound electrons and its implications. Radiating properties of an ensemble of oscillating dipoles with near-field and farfield emission. - Macroscopic ...
A Simple Classroom Demonstration of Natural Convection
... requires a few hours of preparation time, but very little in materials cost, assuming an overhead projector is already available. It could be prepared by the instructor or by students as part of a class-related project. I explain below the principle behind the schlieren technique, the preparation re ...
... requires a few hours of preparation time, but very little in materials cost, assuming an overhead projector is already available. It could be prepared by the instructor or by students as part of a class-related project. I explain below the principle behind the schlieren technique, the preparation re ...
Versatile two-dimensional potentials for ultra
... less than the chemical potential of the BEC.) For a careful study of superfluidity it is desirable for the toroidal trap to have a constant potential depth about the entire ring, with fluctuations much smaller than the chemical potential. By spatially scanning a focussed laser beam at a frequency mu ...
... less than the chemical potential of the BEC.) For a careful study of superfluidity it is desirable for the toroidal trap to have a constant potential depth about the entire ring, with fluctuations much smaller than the chemical potential. By spatially scanning a focussed laser beam at a frequency mu ...
Polarization spectra of excited-state-Mg(3p)--rare-gas
... A single data run consisted of recording the signals from 2000 laser shots with laser 2 polarized first along z (I, ) and then along x (I„}.Residual background levels were obtained for each single run and subtracted from the total signals before obtaining PI as described above. Leakage of resonance ...
... A single data run consisted of recording the signals from 2000 laser shots with laser 2 polarized first along z (I, ) and then along x (I„}.Residual background levels were obtained for each single run and subtracted from the total signals before obtaining PI as described above. Leakage of resonance ...
Noise-equivalent sensitivity of photoacoustics
... 100% sensitivity to optical absorption.6 The high imaging contrast of photoacoustics has enabled quantification of a number of vascular metrics, including total hemoglobin concentration (CHb ), blood oxygen saturation (sO2 ), flow speed or volumetric flow rate, capillary density, metabolic rate of o ...
... 100% sensitivity to optical absorption.6 The high imaging contrast of photoacoustics has enabled quantification of a number of vascular metrics, including total hemoglobin concentration (CHb ), blood oxygen saturation (sO2 ), flow speed or volumetric flow rate, capillary density, metabolic rate of o ...
TOLERANCING OPTICAL SYSTEMS
... Following the estimation of tolerances for components, the assembly/alignment procedure should be given. The rules of thumb for the assembly in table 5 could be used for this term. Then, to estimate system performance, use a merit function that uses RSS to combine independent contributions: Φ0 is fr ...
... Following the estimation of tolerances for components, the assembly/alignment procedure should be given. The rules of thumb for the assembly in table 5 could be used for this term. Then, to estimate system performance, use a merit function that uses RSS to combine independent contributions: Φ0 is fr ...
Shifting the spherical focus of a 4Pi focusing system
... obtain the spherical focal spot in the aplanatic focusing system, we can simply divide the field amplitude l(θ) of the incoming beam by (cosθ)1/2, which means the introduction of an amplitude modulation, as done by Chen and Zhan in [14]. Second, we have assumed the maximum converging angle θmax to b ...
... obtain the spherical focal spot in the aplanatic focusing system, we can simply divide the field amplitude l(θ) of the incoming beam by (cosθ)1/2, which means the introduction of an amplitude modulation, as done by Chen and Zhan in [14]. Second, we have assumed the maximum converging angle θmax to b ...
amplitude transfer function
... Diffraction–limited resolution (safe) Two point objects are “just resolvable just resolvable” (limited by diffraction only) if they are separated by: ...
... Diffraction–limited resolution (safe) Two point objects are “just resolvable just resolvable” (limited by diffraction only) if they are separated by: ...
Imaging Properties of Laser-Produced Parabolic Profile Microlenses
... smaller than diffraction then the diffraction limits performances of optical system, for the optical system with smaller aberrations than the diffraction is said to be diffraction limited system. Goal of each optical designer is to try to design the diffraction limited system. All presented microlen ...
... smaller than diffraction then the diffraction limits performances of optical system, for the optical system with smaller aberrations than the diffraction is said to be diffraction limited system. Goal of each optical designer is to try to design the diffraction limited system. All presented microlen ...
Interferometric near-infrared spectroscopy directly quantifies optical
... [Eqs. (2) and (3)] and parametric (e.g., temporal) averages within a sample. DSCL techniques have two main limitations. Firstly, the photon time-of-flight (TOF) is not measured. Accurate determination of particle dynamics from multiply scattered light is challenging if the TOF distribution is unknow ...
... [Eqs. (2) and (3)] and parametric (e.g., temporal) averages within a sample. DSCL techniques have two main limitations. Firstly, the photon time-of-flight (TOF) is not measured. Accurate determination of particle dynamics from multiply scattered light is challenging if the TOF distribution is unknow ...
File - Electrical Engineering
... If we look at a single ray of light moving through a clear material the distance advanced by the wavefront would be quite regular.There is a widely held view that light always travels at the same speed. This ‘fact’ is simply not true. The speed of light depends upon the material through which it ...
... If we look at a single ray of light moving through a clear material the distance advanced by the wavefront would be quite regular.There is a widely held view that light always travels at the same speed. This ‘fact’ is simply not true. The speed of light depends upon the material through which it ...
IMAGING WITH THZ PULSES TX 7725
... THz imaging is an emerging technology that permits threedimensional tomographic imaging of non-metallic objects. Numerous applications have been demonstrated where THz imaging could be a valuable complement to existing technologies for non-invasive testing, including the detection of faults or delam ...
... THz imaging is an emerging technology that permits threedimensional tomographic imaging of non-metallic objects. Numerous applications have been demonstrated where THz imaging could be a valuable complement to existing technologies for non-invasive testing, including the detection of faults or delam ...
OPTICAL CONSTANTS OF URANIUM NITRIDE IN THE XUV
... Uranium nitride was deposited on several different substrates simultaneously so that the films created may be studied using many different characterization techniques. To date, only the silicon wafers and carbon coated TEM (Tunneling electron microscopy) grids have now been studied. The deposited f ...
... Uranium nitride was deposited on several different substrates simultaneously so that the films created may be studied using many different characterization techniques. To date, only the silicon wafers and carbon coated TEM (Tunneling electron microscopy) grids have now been studied. The deposited f ...
(full text)
... view) were used to expose the pattern shown in Figure 5a. Depending upon the size of the field of view (or the magnification used for the exposure), the exposed areas with some or all the PMMA removed during development can be viewed with an optical microscope (as shown in Figure 5) or viewed with t ...
... view) were used to expose the pattern shown in Figure 5a. Depending upon the size of the field of view (or the magnification used for the exposure), the exposed areas with some or all the PMMA removed during development can be viewed with an optical microscope (as shown in Figure 5) or viewed with t ...
TEP 2.6.11-00 Fourier optics – 2f Arrangement TEP 2.6.11
... Fourier optics is one of the major viewpoints for understanding classical optics. It refers to optical technologies which arise when the plane wave spectrum viewpoint is combined with the Fourier transforming property of lenses, to yield image processing devices analogous to the signal processing de ...
... Fourier optics is one of the major viewpoints for understanding classical optics. It refers to optical technologies which arise when the plane wave spectrum viewpoint is combined with the Fourier transforming property of lenses, to yield image processing devices analogous to the signal processing de ...
Displacement Measuring Interferometry
... foundation for commercial interferometric measurement tools that monitor object positions with a resolution better than 1 nm for objects traveling at 2 m/s. A wide range of applications include machine tool stage positioning and distance monitoring over length scales from a few millimeters to hundre ...
... foundation for commercial interferometric measurement tools that monitor object positions with a resolution better than 1 nm for objects traveling at 2 m/s. A wide range of applications include machine tool stage positioning and distance monitoring over length scales from a few millimeters to hundre ...
7_SNOM
... Unlimited resolution Physical mechanism: FIELD ENHANCEMENT Suitable only for particular light-matter interaction process (e.g. Raman scattering, second harmonic generation, etc Where the light detected has a different wavelenght from the excitation light.) Strong analogy to SERS and SPR ...
... Unlimited resolution Physical mechanism: FIELD ENHANCEMENT Suitable only for particular light-matter interaction process (e.g. Raman scattering, second harmonic generation, etc Where the light detected has a different wavelenght from the excitation light.) Strong analogy to SERS and SPR ...
Persistent spectral hole burning in an organic material for temporal
... The frequency components of the pulse are spatially dis- ...
... The frequency components of the pulse are spatially dis- ...
Document
... Unlimited resolution Physical mechanism: FIELD ENHANCEMENT Suitable only for particular light-matter interaction process (e.g. Raman scattering, second harmonic generation, etc Where the light detected has a different wavelenght from the excitation light.) Strong analogy to SERS and SPR ...
... Unlimited resolution Physical mechanism: FIELD ENHANCEMENT Suitable only for particular light-matter interaction process (e.g. Raman scattering, second harmonic generation, etc Where the light detected has a different wavelenght from the excitation light.) Strong analogy to SERS and SPR ...
PDF
... Optical trapping with tightly focused laser beams has been broadly applied to objects as diverse as biological molecules, colloidal particles, and living cells [1-3]. The manipulation of multiple objects has been demonstrated by the use of holographic tweezers and time-shared trapping [2-5]. These o ...
... Optical trapping with tightly focused laser beams has been broadly applied to objects as diverse as biological molecules, colloidal particles, and living cells [1-3]. The manipulation of multiple objects has been demonstrated by the use of holographic tweezers and time-shared trapping [2-5]. These o ...
Construction and Validation of a White Light Interferometer
... measurements. The thesis describes the design of a vertical scan interferometer system to study the surface topography of surfaces down to nanometers. The desired properties of the system are its simplicity, portability and compact size, making it suitable for use in general labs and for educational ...
... measurements. The thesis describes the design of a vertical scan interferometer system to study the surface topography of surfaces down to nanometers. The desired properties of the system are its simplicity, portability and compact size, making it suitable for use in general labs and for educational ...
Confocal microscopy
Confocal microscopy is an optical imaging technique for increasing optical resolution and contrast of a micrograph by means of adding a spatial pinhole placed at the confocal plane of the lens to eliminate out-of-focus light. It enables the reconstruction of three-dimensional structures from the obtained images. This technique has gained popularity in the scientific and industrial communities and typical applications are in life sciences, semiconductor inspection and materials science.