String Oscillograph
... String Oscillogragh, first offered by General Radio in 1928, is a device that enables one to observe waveform of an electrical current in real time. This is accomplished by the following implementations. A very fine tungsten wire is positioned in a magnetic field supplied by a permanent magnet. When ...
... String Oscillogragh, first offered by General Radio in 1928, is a device that enables one to observe waveform of an electrical current in real time. This is accomplished by the following implementations. A very fine tungsten wire is positioned in a magnetic field supplied by a permanent magnet. When ...
Supplementary Methods and References
... becomes invisible. The cell circled in red is visible at 1 and 2 µm, but disappears at 5 µm; while the cell circled in black can be seen in all three depths, indicating the thickness variation of different cells (thicker cell circled in black than the one circled in red). This thickness difference i ...
... becomes invisible. The cell circled in red is visible at 1 and 2 µm, but disappears at 5 µm; while the cell circled in black can be seen in all three depths, indicating the thickness variation of different cells (thicker cell circled in black than the one circled in red). This thickness difference i ...
Optical properties of Al2O3 thin films grown by
... contrast optical waveguides has been an important task in integrated optics since its inception. Integrated optical devices and systems are applied in optical communication and optical sensors, as well as emerging applications, such as on-chip optical clock distribution and optical chip-to-chip inte ...
... contrast optical waveguides has been an important task in integrated optics since its inception. Integrated optical devices and systems are applied in optical communication and optical sensors, as well as emerging applications, such as on-chip optical clock distribution and optical chip-to-chip inte ...
A correlation of thin lens approximation to thick
... CPF’s. On the other hand, the coefficients of astigmatism and field curvature which are represented by Eqs. (2.c) and (2.d) do not depend on CSF’s and CPF’s for the exit pupil at the lens. Therefore, these coefficients were not mentioned in this study. The differentiation of Eq. (2.a) by S which equ ...
... CPF’s. On the other hand, the coefficients of astigmatism and field curvature which are represented by Eqs. (2.c) and (2.d) do not depend on CSF’s and CPF’s for the exit pupil at the lens. Therefore, these coefficients were not mentioned in this study. The differentiation of Eq. (2.a) by S which equ ...
Document
... beams of light converge. • In a convex lens, all light rays traveling parallel to the optical axis are bent so that they pass through the focal point. ...
... beams of light converge. • In a convex lens, all light rays traveling parallel to the optical axis are bent so that they pass through the focal point. ...
Étendue and spectral resolution
... The finesse is a measure of the spectral resolution that can be achieved with an interferometer for a specified FSR – which is determined by experimental requirements. Ideally the interferometer plates should be illuminated by parallel rays of light and these rays should be in the wedge plane of the ...
... The finesse is a measure of the spectral resolution that can be achieved with an interferometer for a specified FSR – which is determined by experimental requirements. Ideally the interferometer plates should be illuminated by parallel rays of light and these rays should be in the wedge plane of the ...
chapter26
... Ray 1 is drawn from the top of the object parallel to the principal axis and is reflected as if coming from the focal point, F Ray 2 is drawn from the top of the object toward the focal point and is reflected parallel to the principal axis Ray 3 is drawn through the center of curvature, C, on the ba ...
... Ray 1 is drawn from the top of the object parallel to the principal axis and is reflected as if coming from the focal point, F Ray 2 is drawn from the top of the object toward the focal point and is reflected parallel to the principal axis Ray 3 is drawn through the center of curvature, C, on the ba ...
Flat optics with designer metasurfaces
... scatterers (‘optical antennas’13,14), which can take a variety of forms such as metallic or dielectric micro/nanoparticles15,16 and apertures opened in metallic films17,18. The essence of such metasurfaces is to use arrays of antennas with subwavelength separation and with spatially varying geometri ...
... scatterers (‘optical antennas’13,14), which can take a variety of forms such as metallic or dielectric micro/nanoparticles15,16 and apertures opened in metallic films17,18. The essence of such metasurfaces is to use arrays of antennas with subwavelength separation and with spatially varying geometri ...
Get PDF - OSA Publishing
... A bulky condenser with an opaque light stop in the middle is used to guide the illumination light and needs to be aligned precisely with a detection objective. In reflection DF microscopy, this process is fulfilled by a specially designed DF objective combined with a reflection cube. In both cases, ...
... A bulky condenser with an opaque light stop in the middle is used to guide the illumination light and needs to be aligned precisely with a detection objective. In reflection DF microscopy, this process is fulfilled by a specially designed DF objective combined with a reflection cube. In both cases, ...
Motion and Optical Flow
... – Differential algorithms – Based on gradients in space and time – Dense correspondence estimates – Most common with video • Large displacements – Matching algorithms – Based on correlation or features – Sparse correspondence estimates – Most common with multiple cameras / stereo ...
... – Differential algorithms – Based on gradients in space and time – Dense correspondence estimates – Most common with video • Large displacements – Matching algorithms – Based on correlation or features – Sparse correspondence estimates – Most common with multiple cameras / stereo ...
Zeeman Effect - UCI Physics and Astronomy
... as shown in Fig. 2. The high voltage power supply for the PMT is in the photon counter. Note: Do not turn on the Photon Counter (and PMT) when the room lights are on. Use the single counter mode on the discriminator, and set the discriminator level high enough to avoid an excessive count rate which ...
... as shown in Fig. 2. The high voltage power supply for the PMT is in the photon counter. Note: Do not turn on the Photon Counter (and PMT) when the room lights are on. Use the single counter mode on the discriminator, and set the discriminator level high enough to avoid an excessive count rate which ...
Minimized speckle noise in lens-less holographic projection by pixel
... In the domain of portable display devices a strong trend for miniaturization and high energetic efficiency is observed throughout the world. One of the results is the recent development of numerous solutions of laser pico-projection, based on beam scanning [1] and holography [2,3]. This work focuses ...
... In the domain of portable display devices a strong trend for miniaturization and high energetic efficiency is observed throughout the world. One of the results is the recent development of numerous solutions of laser pico-projection, based on beam scanning [1] and holography [2,3]. This work focuses ...
Document
... – Differential algorithms – Based on gradients in space and time – Dense correspondence estimates – Most common with video • Large displacements – Matching algorithms – Based on correlation or features – Sparse correspondence estimates – Most common with multiple cameras / stereo ...
... – Differential algorithms – Based on gradients in space and time – Dense correspondence estimates – Most common with video • Large displacements – Matching algorithms – Based on correlation or features – Sparse correspondence estimates – Most common with multiple cameras / stereo ...
Two-state Optical Filter Based on Micromechanical
... filtered to match the absorption band of the desired gas. For reliable and drift-compensated operation the instrument must have a built-in reference measurement, either in the form of a reference absorption path, or a reference wavelength, or a combination of the two. The advantage of the NDIR metho ...
... filtered to match the absorption band of the desired gas. For reliable and drift-compensated operation the instrument must have a built-in reference measurement, either in the form of a reference absorption path, or a reference wavelength, or a combination of the two. The advantage of the NDIR metho ...
Issues With Telescopes
... accomplishes feats of astrophotography that are simply unattainable with any other telescopic lens, telescope, or electronic imager. No other photo-optical instrument permits such extremely wide-field photography at such fast photographic speed and with such an amazingly flat imaging area to the fie ...
... accomplishes feats of astrophotography that are simply unattainable with any other telescopic lens, telescope, or electronic imager. No other photo-optical instrument permits such extremely wide-field photography at such fast photographic speed and with such an amazingly flat imaging area to the fie ...
Interference of Light waves Wave Optics
... If the thin film is between two different media, one of lower index than the film and one of higher index, the conditions for constructive and destructive interference are reversed With different materials on either side of the film, you may have a situation in which there is a 180o phase change at ...
... If the thin film is between two different media, one of lower index than the film and one of higher index, the conditions for constructive and destructive interference are reversed With different materials on either side of the film, you may have a situation in which there is a 180o phase change at ...
Principles and Clinical Applications of Ray-Tracing
... ABSTRACT: The visual quality of the eye depends on several optical and neural factors. In the nineteenth century, Helmholtz found optical errors that could not be corrected using existing optical theory. In the process of image formation in the human eye there are three major sources of degradation: ...
... ABSTRACT: The visual quality of the eye depends on several optical and neural factors. In the nineteenth century, Helmholtz found optical errors that could not be corrected using existing optical theory. In the process of image formation in the human eye there are three major sources of degradation: ...
Noniterative Exact Solution to the Phase Problem in Optical Imaging Implemented with Scanning Probe Microscope.
... propagating into the far-field with a detectable intensity. It is in fact a delta function or an optical “heavy atom” that can with nanometric precision be positioned freely on or relative to a sample. Thus, the intensities of light from an object can be recorded at the Fourier plane with and without ...
... propagating into the far-field with a detectable intensity. It is in fact a delta function or an optical “heavy atom” that can with nanometric precision be positioned freely on or relative to a sample. Thus, the intensities of light from an object can be recorded at the Fourier plane with and without ...
Ray Theory
... Rays are an approximation (high f), but they are so useful that we tend to make use of them whenever possible. ...
... Rays are an approximation (high f), but they are so useful that we tend to make use of them whenever possible. ...
Full-field refractive index measurement with simultaneous phase
... Using the phenomenon of total internal reflection and a beam splitting device, a technique of simultaneous phase-shift interferometry is proposed for measuring the full-field refractive index. Because this method applies a beam splitting device that mimics the characteristics of beam splitting and pha ...
... Using the phenomenon of total internal reflection and a beam splitting device, a technique of simultaneous phase-shift interferometry is proposed for measuring the full-field refractive index. Because this method applies a beam splitting device that mimics the characteristics of beam splitting and pha ...
Scattered Light Predictions for Aluminum Painted Reflectors in
... painted reflectors, micro-roughness causes incident light to be scattered or diffusely reflected off the surface in numerous directions. The geometric nature of the surface determines the distribution of the reflected scattered light. Therefore, measurements of how the material scatters a wellcharac ...
... painted reflectors, micro-roughness causes incident light to be scattered or diffusely reflected off the surface in numerous directions. The geometric nature of the surface determines the distribution of the reflected scattered light. Therefore, measurements of how the material scatters a wellcharac ...