Optical Caustics Observed in Light Scattered by an Oblate Spheroid
... scattered at the same angle by all the other processes, and by its interference with the specific process being studied. To eliminate these masking effects, the calculations reported here consider only the p ¼ 2 Debye process of transmission following one internal reflection. Our results are, thus, ...
... scattered at the same angle by all the other processes, and by its interference with the specific process being studied. To eliminate these masking effects, the calculations reported here consider only the p ¼ 2 Debye process of transmission following one internal reflection. Our results are, thus, ...
Label-free super-resolution imaging of adenoviruses by submerged
... Because of the small sizes of most viruses (typically 5–150 nm), standard optical microscopes, which have an optical diffraction limit of 200 nm, are not generally suitable for their direct observation. Electron microscopes usually require specimens to be placed under vacuum conditions, thus making ...
... Because of the small sizes of most viruses (typically 5–150 nm), standard optical microscopes, which have an optical diffraction limit of 200 nm, are not generally suitable for their direct observation. Electron microscopes usually require specimens to be placed under vacuum conditions, thus making ...
Introduction: When waves encounter obstacles (or openings), they
... The area of the zone increases with increase in the wavelength of light and with increase in the distance of the point P from the wave front. As discussed in Fresnel's Assumptions the effect at a point will depend on (i) the distance of P from the wave front, (ii) the area of the zone and (iii) the ...
... The area of the zone increases with increase in the wavelength of light and with increase in the distance of the point P from the wave front. As discussed in Fresnel's Assumptions the effect at a point will depend on (i) the distance of P from the wave front, (ii) the area of the zone and (iii) the ...
McCarthy, Kevin. Accuracy in Positioning Systems. New England
... system, the relatively compliant nut and thrust bearings define additional error sources. The net result is that an "extremely accurate" leadscrew is somewhat of a contradiction in terms; while adequate for low to moderate accuracy systems, additional expense is better targeted at a feedback system ...
... system, the relatively compliant nut and thrust bearings define additional error sources. The net result is that an "extremely accurate" leadscrew is somewhat of a contradiction in terms; while adequate for low to moderate accuracy systems, additional expense is better targeted at a feedback system ...
Birefringent Thin Films for LCDs Pochi Yeh
... Use two films of opposite K-values (or ∆n) and crossed principal axes ...
... Use two films of opposite K-values (or ∆n) and crossed principal axes ...
d - s3.amazonaws.com
... Newtonian and Cassegrainian reflecting telescopes are the styles most of the astronomical telescopes use for the reason that it is possible to make very large reflecting mirrors to high surface quality. Hale 200 inch (5.08 m) at Mt. Palomar. Keck 10 m effective diameter from 36 segments at Mauna Kea ...
... Newtonian and Cassegrainian reflecting telescopes are the styles most of the astronomical telescopes use for the reason that it is possible to make very large reflecting mirrors to high surface quality. Hale 200 inch (5.08 m) at Mt. Palomar. Keck 10 m effective diameter from 36 segments at Mauna Kea ...
WAVE OPTICS Jaan Kalda 1 Basics. Double slit diffraction.
... random phase ψ(t), and also the characteristic time-scale during there is no need to add Re to separate its real part which which the diffraction pattern fluctuates. This is well beyond corresponds to a real physical quantity. anything what an human eye can resolve: we’ll see an averaged So, at our ...
... random phase ψ(t), and also the characteristic time-scale during there is no need to add Re to separate its real part which which the diffraction pattern fluctuates. This is well beyond corresponds to a real physical quantity. anything what an human eye can resolve: we’ll see an averaged So, at our ...
Physics 136-3: General Physics Lab Laboratory Manual
... methodologies that you learn about in your lectures are not taught because they were first envisioned by famous people, but because they have been observed always to describe the world. For these claims to withstand the test of time (and repeated testing in future scientific work), we must have some ...
... methodologies that you learn about in your lectures are not taught because they were first envisioned by famous people, but because they have been observed always to describe the world. For these claims to withstand the test of time (and repeated testing in future scientific work), we must have some ...
Choosing Mesh Parameters for Complex Systems
... Scaling with the Convolution Propagator • One drawback of the convolution propagator is its apparent inability to scale the mesh spacing in a propagation. • Scaling the mesh is important when propagating with significant wavefront curvature. • The convolution propagator can be modified to model pro ...
... Scaling with the Convolution Propagator • One drawback of the convolution propagator is its apparent inability to scale the mesh spacing in a propagation. • Scaling the mesh is important when propagating with significant wavefront curvature. • The convolution propagator can be modified to model pro ...
PC 481 Fiber Optics Lab Manual
... cores are brought to within a wavelength apart some of the light in one core will leak into the other core or cores. The amount of coupling, or power transfer, between the cores is dependent upon the distance at which the core are apart, as well as the interaction length. Also, the coupling properti ...
... cores are brought to within a wavelength apart some of the light in one core will leak into the other core or cores. The amount of coupling, or power transfer, between the cores is dependent upon the distance at which the core are apart, as well as the interaction length. Also, the coupling properti ...
A Review on Non linearity in optical fiber due to
... nonlinear dependence of the refractive index on intensity. At 50 Gb/s data rates the modulation bandwidth is so large, that even for an ideal source without phase noise, fiber dispersion broadens the optical pulses and limits transmission. The deadly influence of linear fiber dispersion may be minim ...
... nonlinear dependence of the refractive index on intensity. At 50 Gb/s data rates the modulation bandwidth is so large, that even for an ideal source without phase noise, fiber dispersion broadens the optical pulses and limits transmission. The deadly influence of linear fiber dispersion may be minim ...
About Optical Fiber - University of Vaasa
... Multimode fiber employ Light Emitting Diodes (LEDs) with its proper ...
... Multimode fiber employ Light Emitting Diodes (LEDs) with its proper ...
b1.2. generation and propagation of higher order gaussian beams
... On the other hand propagation of such beams through a confocal microscope leads to lots of spatial and temporal changes to the beam. Hence, it needs to be understood while using such higher order Gaussian beams. It has been thought that Gaussian beam propagating through an ideal thin lens or a mirro ...
... On the other hand propagation of such beams through a confocal microscope leads to lots of spatial and temporal changes to the beam. Hence, it needs to be understood while using such higher order Gaussian beams. It has been thought that Gaussian beam propagating through an ideal thin lens or a mirro ...
Fundamental Limits in Confocal Microscopy
... The data recorded from a confocal microscope will, in the simplest case, be a set of intensity values (usually representing the concentration of fluorophore) for every voxel throughout a 3D volume within the specimen. Though these data may often be displayed as an image, it should always be remember ...
... The data recorded from a confocal microscope will, in the simplest case, be a set of intensity values (usually representing the concentration of fluorophore) for every voxel throughout a 3D volume within the specimen. Though these data may often be displayed as an image, it should always be remember ...
Laser Beams and Resonators
... derivations which lead to basic understanding and on results which are of practical value. Historically, the subject of laser resonators had its origin when Dicke [1], Prokhorov [2], and Schawlow and Townes [3] independently proposed to use the FabryPerot interferometer as a laser resonator. The mod ...
... derivations which lead to basic understanding and on results which are of practical value. Historically, the subject of laser resonators had its origin when Dicke [1], Prokhorov [2], and Schawlow and Townes [3] independently proposed to use the FabryPerot interferometer as a laser resonator. The mod ...
PDF
... the array [as shown in Fig. 1(a)] generates a sinc-like beam form in the far field with sidelobes, as simulated in Fig. 1(b). It is seen in Fig. 1(b) that multiple interference orders appear in the far field, because the antennas are spaced by multiple times of the operating wavelength. Also note th ...
... the array [as shown in Fig. 1(a)] generates a sinc-like beam form in the far field with sidelobes, as simulated in Fig. 1(b). It is seen in Fig. 1(b) that multiple interference orders appear in the far field, because the antennas are spaced by multiple times of the operating wavelength. Also note th ...
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.