T R ECHNICAL ESEARCH
... optics by enabling the design of compact, high-performance optical phase imagers: opto-electronic systems which can measure wave-front phase with resolution and speed that are currently only available in intensity imagers.1,2 The key requirement of the optical part of the system is to provide an ima ...
... optics by enabling the design of compact, high-performance optical phase imagers: opto-electronic systems which can measure wave-front phase with resolution and speed that are currently only available in intensity imagers.1,2 The key requirement of the optical part of the system is to provide an ima ...
Waves and Optics - School of Physics
... The equation for simple harmonic motion is given by x = Asin(ωt). The speed is given by v = ωA cos(ωt). At the lowest point the speed is a maximum (t = 0), hence v = ωA = 2.8 s-1 × 0.15 m = 0.42 m.s-1. b. The acceleration is a = dv/dt = -ω2A sin(ωt). At the end of its path the acceleration is a maxi ...
... The equation for simple harmonic motion is given by x = Asin(ωt). The speed is given by v = ωA cos(ωt). At the lowest point the speed is a maximum (t = 0), hence v = ωA = 2.8 s-1 × 0.15 m = 0.42 m.s-1. b. The acceleration is a = dv/dt = -ω2A sin(ωt). At the end of its path the acceleration is a maxi ...
Detecting tissue optical and mechanical properties with an
... mm spatial resolution and the calculated phantom stiffness agreed well with an independent compression test (deviation less than 10%). In this paper, it is the first study to show, as far as we are aware, that both optical information and quantitative elasticity information can be obtained using a s ...
... mm spatial resolution and the calculated phantom stiffness agreed well with an independent compression test (deviation less than 10%). In this paper, it is the first study to show, as far as we are aware, that both optical information and quantitative elasticity information can be obtained using a s ...
Inexpensive optical tweezers for undergraduate laboratories
... by the momentum transfer associated with redirection of light at a dielectric interface. Since light carries momentum that is proportional to its energy and in the direction of propagation, the reflection and refraction of light at the interface changes the momentum of the light. If the momentum of ...
... by the momentum transfer associated with redirection of light at a dielectric interface. Since light carries momentum that is proportional to its energy and in the direction of propagation, the reflection and refraction of light at the interface changes the momentum of the light. If the momentum of ...
Transfer of Light Helicity to Nanostructures
... mechanism. The melted metal upon irradiation of the optical vortex pulse is collected in the ring of the optical vortex by the optical gradient force. The orbital angular momentum of the optical vortex is then transferred to the melted metal, producing orbital motion of the melted metal about the ax ...
... mechanism. The melted metal upon irradiation of the optical vortex pulse is collected in the ring of the optical vortex by the optical gradient force. The orbital angular momentum of the optical vortex is then transferred to the melted metal, producing orbital motion of the melted metal about the ax ...
Window strength and environments
... external contaminants such as dirt and moisture, while transmitting the desired light radiation. It is usually a plane-parallel plate made of optical glass, fused silica or plastic. According to the application, it can be made aspheric (i.e. Schmidt camera) or meniscus-shaped (i.e. Maksutov telescop ...
... external contaminants such as dirt and moisture, while transmitting the desired light radiation. It is usually a plane-parallel plate made of optical glass, fused silica or plastic. According to the application, it can be made aspheric (i.e. Schmidt camera) or meniscus-shaped (i.e. Maksutov telescop ...
Beam manipulation: prisms vs. mirrors
... assemblies are often used in certain laser targeting and laser range-finding applications. It is necessary to add a note of caution when using prisms with either convergent or divergent light, or when the entrance or exit face of the prism is at an angle to the incident light. Any of these condition ...
... assemblies are often used in certain laser targeting and laser range-finding applications. It is necessary to add a note of caution when using prisms with either convergent or divergent light, or when the entrance or exit face of the prism is at an angle to the incident light. Any of these condition ...
Superprism phenomena in planar photonic crystals
... Kosaka’s angular dispersion, obtained in their 3-D “autocloned” system. The main difference between Kosaka’s and our results lies at the operating point. Kosaka et al. operated their superprism near the point, which means the vector has a large component perpendicular to the plane of the crystal. Th ...
... Kosaka’s angular dispersion, obtained in their 3-D “autocloned” system. The main difference between Kosaka’s and our results lies at the operating point. Kosaka et al. operated their superprism near the point, which means the vector has a large component perpendicular to the plane of the crystal. Th ...
Theoretical modeling and evaluation of the axial resolution of the
... that will result in the highest achievable axial resolution for any imaging system.2 The axial intensity response curves calculated for a typical subject imaged with and without AO using a 23- and an 80-m pinhole are shown in Fig. 2. The initial r.m.s. without AO is 0.60 m and the mean r.m.s. afte ...
... that will result in the highest achievable axial resolution for any imaging system.2 The axial intensity response curves calculated for a typical subject imaged with and without AO using a 23- and an 80-m pinhole are shown in Fig. 2. The initial r.m.s. without AO is 0.60 m and the mean r.m.s. afte ...
Nonlinear Behavior and Damage of Dispersive Multilayer
... mimics to some extent the z-scan technique.15 Tested mirrors, denoted as MX-series, differ by two key parameters: the value of introduced GDD and material pair. For coating production we have used Ta2 O5 /SiO2 and HfO2 /SiO2 as the material pairs that are most commonly used for visible (VIS) region ...
... mimics to some extent the z-scan technique.15 Tested mirrors, denoted as MX-series, differ by two key parameters: the value of introduced GDD and material pair. For coating production we have used Ta2 O5 /SiO2 and HfO2 /SiO2 as the material pairs that are most commonly used for visible (VIS) region ...
IMPORTANT FEATURES FOR A RIGHT - pi
... the intensity distribution of a laser beam is solved by so called beam shaping optics1. Today there are available many optical systems realizing various beam shaping techniques: truncation of a beam by an aperture or attenuation by an apodizing filters, integration systems based on arrays of microle ...
... the intensity distribution of a laser beam is solved by so called beam shaping optics1. Today there are available many optical systems realizing various beam shaping techniques: truncation of a beam by an aperture or attenuation by an apodizing filters, integration systems based on arrays of microle ...
Non-iterative phase hologram computation for low
... CGHs are ideally complex valued functions that modulate both the amplitude and phase of the incident light. Yet, available SLMs can provide only some restricted type of modulation, such as phase-only, amplitude-only or binary [14, 15]. One option is to perform direct quantization on the ideal full c ...
... CGHs are ideally complex valued functions that modulate both the amplitude and phase of the incident light. Yet, available SLMs can provide only some restricted type of modulation, such as phase-only, amplitude-only or binary [14, 15]. One option is to perform direct quantization on the ideal full c ...
Fabry-Perot Interferometer
... • Three pairs of mirrors are provided, two spherical sets with radii of curvature r of 75 mm and 100 mm, respectively; and one set of plane mirrors. The reflectivity of the mirrors is 96% for each set. Please, do not touch the mirror surfaces! The coatings are extremely damageable and expensive. Han ...
... • Three pairs of mirrors are provided, two spherical sets with radii of curvature r of 75 mm and 100 mm, respectively; and one set of plane mirrors. The reflectivity of the mirrors is 96% for each set. Please, do not touch the mirror surfaces! The coatings are extremely damageable and expensive. Han ...
Aero-Optical Environment Around a Cylindrical Turret with a Flat
... All tests were performed in transonic facilities at Hessert Laboratory for Aerospace Research, University of Notre Dame. The facilities were described in detail in Gordeyev at al. [7] and an interested reader is referred to this reference for a complete discussion. Except for portions required high- ...
... All tests were performed in transonic facilities at Hessert Laboratory for Aerospace Research, University of Notre Dame. The facilities were described in detail in Gordeyev at al. [7] and an interested reader is referred to this reference for a complete discussion. Except for portions required high- ...
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.