Example
... of diameter around 2 mm. Diffraction therefore limits the ability to resolve distance objects. Applying Rayleigh’s criterion, two “dots” (as shown) cannot be resolved if (=D/L) is less than R = 1.22 /d, where d is the diameter of the pupil. Note: the index of refraction inside the eye is simila ...
... of diameter around 2 mm. Diffraction therefore limits the ability to resolve distance objects. Applying Rayleigh’s criterion, two “dots” (as shown) cannot be resolved if (=D/L) is less than R = 1.22 /d, where d is the diameter of the pupil. Note: the index of refraction inside the eye is simila ...
Needle-based reflection refractometry of scattering samples using
... 16 Apr 2007 / Vol. 15, No. 8 / OPTICS EXPRESS 4787 ...
... 16 Apr 2007 / Vol. 15, No. 8 / OPTICS EXPRESS 4787 ...
At-wavelength figure metrology of hard x
... hard x-ray microscopy, microdiffraction, and spectromicroscopy using a hard x-ray microprobe have the ability to analyze materials nondestructively with precise spatial information. In these techniques, not only the focusing size of the hard x rays, but also the focusing intensity distribution prope ...
... hard x-ray microscopy, microdiffraction, and spectromicroscopy using a hard x-ray microprobe have the ability to analyze materials nondestructively with precise spatial information. In these techniques, not only the focusing size of the hard x rays, but also the focusing intensity distribution prope ...
Miniaturized Fiber-Optic Fabry-Perot Interferometer for Highly
... being monitored, and Δλm is the drift of λm 0 , when index change is proportional to the spectral shift of the interfeogram. When monitoring the relative index change of ethanol with a nominal refractive index of 1.362, the sensitivity of the measurement is 1138 nm/RIU at the wavelength of 1550 nm a ...
... being monitored, and Δλm is the drift of λm 0 , when index change is proportional to the spectral shift of the interfeogram. When monitoring the relative index change of ethanol with a nominal refractive index of 1.362, the sensitivity of the measurement is 1138 nm/RIU at the wavelength of 1550 nm a ...
Helicity-dependent three-dimensional optical trapping of chiral
... which gives rise to helicity dependent optical forces16. The latter point is illustrated in Fig. 2f,g that display full transmission images of a radial cholesteric droplet under left handed (L ¼ þ 1) and right handed (L ¼ 1) circularly polarized illumination at 532 nm wavelength, respectively. The ...
... which gives rise to helicity dependent optical forces16. The latter point is illustrated in Fig. 2f,g that display full transmission images of a radial cholesteric droplet under left handed (L ¼ þ 1) and right handed (L ¼ 1) circularly polarized illumination at 532 nm wavelength, respectively. The ...
Constant Resolution Omnidirectional Cameras
... specific application at hand: e.g. tracking and visual navigation. Specific details on the applications based on these omnidirectional cameras can be found in [4, 6, 16]. The desired linear projection properties, can be categorised into three main types: • Constant vertical resolution - This design ...
... specific application at hand: e.g. tracking and visual navigation. Specific details on the applications based on these omnidirectional cameras can be found in [4, 6, 16]. The desired linear projection properties, can be categorised into three main types: • Constant vertical resolution - This design ...
Short-pulse limits in optical instrumentation design for the S
... incorporated, interference can still be generated along the Bragg direction even though such contributions will grow rapidly weaker. Although the small-scale features of LCLS pulses are still orders of magnitude longer than this limit (i.e., with respect to interatomic distances in crystals), diffra ...
... incorporated, interference can still be generated along the Bragg direction even though such contributions will grow rapidly weaker. Although the small-scale features of LCLS pulses are still orders of magnitude longer than this limit (i.e., with respect to interatomic distances in crystals), diffra ...
Miscellaeous features - JLab Tech Notes Home Page
... Mirror radii of curvature (see table 2): To reduce the cost and increase the availability of the output coupler we propose to use an even number of meters for the output coupler radius of curvature for the 200 cm Rayleigh range cavity and use a rather lenient tolerance of 1% for the mirror. This mea ...
... Mirror radii of curvature (see table 2): To reduce the cost and increase the availability of the output coupler we propose to use an even number of meters for the output coupler radius of curvature for the 200 cm Rayleigh range cavity and use a rather lenient tolerance of 1% for the mirror. This mea ...
robust and automatic vanishing points detection with their
... been led in the following way: eight successive images have been taken of a given scene, presenting a building whose three vanishing points correspond to orthogonal directions, with different angles of view. The angles of the phototheodolite have been recorded every time. The eight images have been ...
... been led in the following way: eight successive images have been taken of a given scene, presenting a building whose three vanishing points correspond to orthogonal directions, with different angles of view. The angles of the phototheodolite have been recorded every time. The eight images have been ...
Optical Indicatrix
... image on a piece of paper, two images appear, each composed of planepolarised light vibrating at right angles to the other. The light passing up through the calcite can be considered to be incident at right angles. Based on Snell’s Law, the wave normal for this light is not bent, it remains perpendi ...
... image on a piece of paper, two images appear, each composed of planepolarised light vibrating at right angles to the other. The light passing up through the calcite can be considered to be incident at right angles. Based on Snell’s Law, the wave normal for this light is not bent, it remains perpendi ...
Wave Propagation - International Mathematical Union
... coordinates and then deducing conditions on the metric coefficients in order that separation be possible. In the plane, for example, (2.2) is separable only when the coordinate lines are linear or quadratic curves, i.e. conic sections, and a similar conclusion holds in R?. This limitation on the coo ...
... coordinates and then deducing conditions on the metric coefficients in order that separation be possible. In the plane, for example, (2.2) is separable only when the coordinate lines are linear or quadratic curves, i.e. conic sections, and a similar conclusion holds in R?. This limitation on the coo ...
Reflection and critical angle
... angle of refraction and angle of incidence are related by Snell’s Law ni sin θi = nt sin θt , where ni is the refractive index of the incidence medium, nt is the refractive index of the transmission medium, and θ are the respective angle with respect to the normal at the interface. What ray optics d ...
... angle of refraction and angle of incidence are related by Snell’s Law ni sin θi = nt sin θt , where ni is the refractive index of the incidence medium, nt is the refractive index of the transmission medium, and θ are the respective angle with respect to the normal at the interface. What ray optics d ...
Transmission Electron Microscopy
... - High spatial resolution: The main limiting factor on optical microscopy maximum spatial resolution (10-7 m scale) is related to the diffraction limit according to the Rayleigh criterion (δ ~ 0.61⋅λ), which limits the spatial resolution to the wavelength. The use of highenergy electrons on TEM, i.e ...
... - High spatial resolution: The main limiting factor on optical microscopy maximum spatial resolution (10-7 m scale) is related to the diffraction limit according to the Rayleigh criterion (δ ~ 0.61⋅λ), which limits the spatial resolution to the wavelength. The use of highenergy electrons on TEM, i.e ...
lecture_five_2016
... sheet. The sheet is stretched aligning molecules and causing them to be birefringent. The molecules selectively attach themselves to aligned polymer molecules, so that absorption is high in one plane and weak in the other. The transmitted beam is linearly polarized. 5.2.4 Polarization of scattered l ...
... sheet. The sheet is stretched aligning molecules and causing them to be birefringent. The molecules selectively attach themselves to aligned polymer molecules, so that absorption is high in one plane and weak in the other. The transmitted beam is linearly polarized. 5.2.4 Polarization of scattered l ...
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.