Lecture Notes
... To obtain the locations of the minima, the slit was equally divided into N zones, each with width x. Each zone acts as a source of Huygens wavelets. Now these zones can be superimposed at the screen to obtain the intensity as a function of , the angle to the central axis. To find the net electric ...
... To obtain the locations of the minima, the slit was equally divided into N zones, each with width x. Each zone acts as a source of Huygens wavelets. Now these zones can be superimposed at the screen to obtain the intensity as a function of , the angle to the central axis. To find the net electric ...
A Carpet Cloak Device for Visible Light
... a small additional loss due to the reflection at each of the triangle sides. However all such losses are extrinsic to the transformation device. Two control samples were also fabricated beside the cloak sample, a bump structure without any transformation pattern and a simple mirror without a bump. T ...
... a small additional loss due to the reflection at each of the triangle sides. However all such losses are extrinsic to the transformation device. Two control samples were also fabricated beside the cloak sample, a bump structure without any transformation pattern and a simple mirror without a bump. T ...
Lecture 24
... A right circularly polarized light. The field vector E is always at right angles to z, rotates clockwise around z with time, and traces out a full circle over one wavelength of distance propagated. ...
... A right circularly polarized light. The field vector E is always at right angles to z, rotates clockwise around z with time, and traces out a full circle over one wavelength of distance propagated. ...
HOLOGRAPHY, 1948-1971
... started in 1955. This was unknown to me and to the world, because Leith, with his collaborators Cutrona, Palermo, Porcello and Vivian applied his ideas first to the problem of the “side-looking radar” which at that time was classified (6). This was in fact two-dimensional holography with electromagn ...
... started in 1955. This was unknown to me and to the world, because Leith, with his collaborators Cutrona, Palermo, Porcello and Vivian applied his ideas first to the problem of the “side-looking radar” which at that time was classified (6). This was in fact two-dimensional holography with electromagn ...
Modern Optical Engineering
... This is the third edition of Modern Optical Engineering. The first edition appeared in 1966; the second in 1990. Strictly by coincidence, this third edition will appear early in the third millennium. The changes from the second edition are rather modest, although quite numerous, evolutionary rather ...
... This is the third edition of Modern Optical Engineering. The first edition appeared in 1966; the second in 1990. Strictly by coincidence, this third edition will appear early in the third millennium. The changes from the second edition are rather modest, although quite numerous, evolutionary rather ...
6_Line_Communication
... capacitive reactance (or susceptance). A dielectric can not be an ideal insulator and so some leakage current always flows through it which is considered to be due to shunt conductance G. At radio frequency operations, the inductance of line is more effective than the resistance of line and capaciti ...
... capacitive reactance (or susceptance). A dielectric can not be an ideal insulator and so some leakage current always flows through it which is considered to be due to shunt conductance G. At radio frequency operations, the inductance of line is more effective than the resistance of line and capaciti ...
Effect of Macroscopic Structure in Iridescent Color
... into typically 10 mm in diameter and focused into the sample with a camera lens (Nikon lens series E f35). The beam waist was estimated at about 3 µm under the assumption of the Gaussian profile of the laser beam with an ideal focusing lens. The optical transmission was also measured by using a He-N ...
... into typically 10 mm in diameter and focused into the sample with a camera lens (Nikon lens series E f35). The beam waist was estimated at about 3 µm under the assumption of the Gaussian profile of the laser beam with an ideal focusing lens. The optical transmission was also measured by using a He-N ...
AGS1927 Technical Datasheet
... The coverglass mirror is used to reveal the confocal resolving power in z-axis direction. The 9nm Aluminum layer on a coverglass is an infinitely thin, totally reflecting flat object for a confocal microscope. To perform the test, a series of images is taken with minimal stepsize. At the level of th ...
... The coverglass mirror is used to reveal the confocal resolving power in z-axis direction. The 9nm Aluminum layer on a coverglass is an infinitely thin, totally reflecting flat object for a confocal microscope. To perform the test, a series of images is taken with minimal stepsize. At the level of th ...
Optical power - WordPress.com
... impurities, they are diffracted – causes the light to disperse and spread out some continues down the fiber, some escapes via cladding – power loss ...
... impurities, they are diffracted – causes the light to disperse and spread out some continues down the fiber, some escapes via cladding – power loss ...
Path-reversed substrate-guided- wave optical interconnects for
... WDDM. Theoretical results calculated by use of Eq. ~2! are also shown in the figure as the solid curve. It is obvious that the experimental results are consistent with the theoretical expectations. The dispersion is found to be insensitive to the states of the input polarization. Figure 5 gives the ...
... WDDM. Theoretical results calculated by use of Eq. ~2! are also shown in the figure as the solid curve. It is obvious that the experimental results are consistent with the theoretical expectations. The dispersion is found to be insensitive to the states of the input polarization. Figure 5 gives the ...
Department of Physics, Technical University Ostrava 17. listopadu
... the refractive index dispersion n(λ), the interference order m and thus the difference of path lengths between the interfering beams in the air 2L and the overall effective thickness t ef − t can be determined. The interference order m of such a value has to be chosen so that the OPD ∆ M (λ) between ...
... the refractive index dispersion n(λ), the interference order m and thus the difference of path lengths between the interfering beams in the air 2L and the overall effective thickness t ef − t can be determined. The interference order m of such a value has to be chosen so that the OPD ∆ M (λ) between ...
3D widefield light microscopy with better than 100 nm axial resolution
... 1998). In SWFM, a standing wave of excitation light is created in the sample by interference of two counterpropagating laser beams. By varying the angle of the laser beams one can achieve an effective OTF similar to that of I3M. Like both I3M and I2M, the SWFM OTF suffers from a gap problem which co ...
... 1998). In SWFM, a standing wave of excitation light is created in the sample by interference of two counterpropagating laser beams. By varying the angle of the laser beams one can achieve an effective OTF similar to that of I3M. Like both I3M and I2M, the SWFM OTF suffers from a gap problem which co ...
Practical realization of massively parallel
... the milled metal plate and to test the practical feasibility of our interconnect approach. Using two fiber ribbons, we coupled 2 ⫻ 12 optical signals into test system I and observed window B with a CCD camera. From Fig. 9 one can recognize B between two adjacent mirrors, M3 and M4, as well as some s ...
... the milled metal plate and to test the practical feasibility of our interconnect approach. Using two fiber ribbons, we coupled 2 ⫻ 12 optical signals into test system I and observed window B with a CCD camera. From Fig. 9 one can recognize B between two adjacent mirrors, M3 and M4, as well as some s ...
Analysis And Design Of Wide-angle Foveated Optical
... Figure 2: Fast wide-angle lens: 18 mm, F/2.8, 80 degrees FOV. Layout, modulation transfer function, field curvature and distortion, and relative illumination. ............... 9 Figure 3: The human eye [2]. ............................................................................................ ...
... Figure 2: Fast wide-angle lens: 18 mm, F/2.8, 80 degrees FOV. Layout, modulation transfer function, field curvature and distortion, and relative illumination. ............... 9 Figure 3: The human eye [2]. ............................................................................................ ...
Flat optics with designer metasurfaces
... or geometric effects (see discussion of the Pancharatnam–Berry phase associated with Fig. 4) are able to extend the phase response to cover the entire 2π range, which is necessary for a complete control of the wavefront. For example, in Fig. 1c the unit cell of the metasurface consisting of eight an ...
... or geometric effects (see discussion of the Pancharatnam–Berry phase associated with Fig. 4) are able to extend the phase response to cover the entire 2π range, which is necessary for a complete control of the wavefront. For example, in Fig. 1c the unit cell of the metasurface consisting of eight an ...
SI - ECE@NUS
... In the main text, the optical forces were calculated using the Minkowski momentum in ray tracing method. In the long standing debate of Minkowski and Abraham momentums, both of them have been supported by some experiments [2, 3]. However, it is more reasonable in the current paper to use the Minkows ...
... In the main text, the optical forces were calculated using the Minkowski momentum in ray tracing method. In the long standing debate of Minkowski and Abraham momentums, both of them have been supported by some experiments [2, 3]. However, it is more reasonable in the current paper to use the Minkows ...
Effective refractive index for determining ray propagation in an
... Yang and Liou [14] introduced an effective refractive index and formulated Snell’s law in such a manner that complex quantities are not required. However, the previous study was limited to the first-order reflection–refraction event when the transmission of a ray is from air into a particle. For highe ...
... Yang and Liou [14] introduced an effective refractive index and formulated Snell’s law in such a manner that complex quantities are not required. However, the previous study was limited to the first-order reflection–refraction event when the transmission of a ray is from air into a particle. For highe ...
Optical aberration
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An optical aberration is a departure of the performance of an optical system from the predictions of paraxial optics. In an imaging system, it occurs when light from one point of an object does not converge into (or does not diverge from) a single point after transmission through the system. Aberrations occur because the simple paraxial theory is not a completely accurate model of the effect of an optical system on light, rather than due to flaws in the optical elements.Aberration leads to blurring of the image produced by an image-forming optical system. Makers of optical instruments need to correct optical systems to compensate for aberration.The articles on reflection, refraction and caustics discuss the general features of reflected and refracted rays.