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IX71/IX81 - Olympus Microscopy Resource Center
IX71/IX81 - Olympus Microscopy Resource Center

... fluorescence performance — efficiently detecting even faint fluorescence signals without damaging the cell, and optimizing multi-color observation. Delivering unprecedented image quality over a super wide light spectrum, the IX2 inverted system microscope will be your live cell instrument of choice ...
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... Q: what’s the advantage of double beam spectrophotometer? (a) single-beam design (b) dual channel design with beams separated in space but simultaneous in time (c) double-beam design in which beams alternate between two ...
Geometric Optics
Geometric Optics

... • A ray parallel to the axis, after reflection, passes through the focal point F of a concave mirror, or appears to come from the (virtual) focal point of a convex mirror. • A ray through (or proceeding toward) the focal point F is reflected parallel to the ...
WHITEPAPER Centration Measurement, Alignment
WHITEPAPER Centration Measurement, Alignment

... intervention. Also, the contrast between background and illuminated areas is lower than in Version: ...
Fundamental Limits in Confocal Microscopy
Fundamental Limits in Confocal Microscopy

... that one may choose to sample a plane by sequentially scanning the illumination over a large number of overlapping sub-volumes that cover the focus plane and that by doing so, one may produce a 2D image, given sufficiently flexible equipment, one could also use the same total sampling (imaging) time ...
Experimental Competition
Experimental Competition

... Start the liquid rotating, and increase the speed of rotation gradually up to the maximum attainable speed while watching the screen. As  increases you might observe different frequency ranges over which the properties of the “image” are drastically different. To describe these observations complet ...
LAB 1 - SIMPLE DIFFRACTION, FOURIER OPTICS AND ACOUSTO
LAB 1 - SIMPLE DIFFRACTION, FOURIER OPTICS AND ACOUSTO

... T1/To for the ruled grating (see figure). This ratio is the grating's duty cycle, show this using an equation. (Hint: use the results of last problem of Prelab Question 2.) (3 points) Place a different grid at the input. Record the spacing between Fourier components, and the distance to the first ze ...
Optical Sources
Optical Sources

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Flat optics with designer metasurfaces
Flat optics with designer metasurfaces

... 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 antennas produces a phase shift of the scattered light that incre ...
ana-phy-ret2016
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Linear momentum increase and negative optical forces
Linear momentum increase and negative optical forces

... in the literature considers the question about the magnitude of electromagnetic momentum in dielectric media, that is, the Abraham– Minkowski controversy15,16. According to Minkowski’s approach, the momentum of a photon increases n times upon entering a dielectric medium ( pM ¼ nhv/c, where n is the ...
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Photoreflectance of Semiconductors

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The program of Physics

... predictions will also correspond; that is, a new (general) theory will yield the old (restricted) theory as a special approximation. We have, then, an infallible guide when testing a new theory or law: The new theory must reduce to the theory it supplants. Any new theory that fails in this respect i ...
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Chapter 8a Wave Optics

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Get PDF - OSA Publishing

... were in transmission at normal incidence using an effective light spot of around 250 μ m. No depolarization was observed. The experiments were repeated by turning the backside of the samples towards the light source, thus effectively changing the sign of the wave vector. In the first pass, light was ...
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Mimicking celestial mechanics in metamaterials ARTICLES *

... metal nanoparticles19 and Bose–Einstein condensates20 . Furthermore, close to the centre singularity, the ray picture fails and one cannot trust the predictions as per Fig. 1b,c. However, experimental observation of the main optical phenomena related to systems such as PBH or gravitational black hol ...
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Structure of Optical Vortices

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Cristaux Photoniques, PO-014 Ecole doctorale photonique Romuald

... Quantitative measurement Note: it is not easy to measure directly reflectivity coefficients close to unity This would imply being able to discriminate between e.g. R=0.999 and R=0.997 Usually much more convenient to use the mirror to make a high Q optical cavity and deduce R from Q ...
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LEONI Fiber Optics

... Light-guide rod with differently sized cross-sectional areas at both ends ➔ changing the aperture of a light beam. Cones bunch light from an optical waveguide with a large cross section into an optical waveguide with a small cross section, without major losses in the transition. Application ...
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Coupling to aeroGAIN-ROD fibers

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Light Magic – Optics and Vision - New England Board of Higher

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Convex and Concave Mirrors Prac

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Harold Hopkins (physicist)

Harold Horace Hopkins FRS (1918–1994) was a renowned British physicist. His Wave Theory of Aberrations, (published by Oxford University Press 1950), is central to all modern optical design and provides the mathematical analysis which enables the use of computers to create the wealth of high quality lenses available today. In addition to his theoretical work, his many inventions are in daily use throughout the world. These include zoom lenses, coherent fibre-optics and more recently the rod-lens endoscopes which 'opened the door' to modern key-hole surgery. He was the recipient of many of the world's most prestigious awards and was twice nominated for a Nobel Prize. His citation on receiving the Rumford Medal from the Royal Society in 1984 stated: ""In recognition of his many contributions to the theory and design of optical instruments, especially of a wide variety of important new medical instruments which have made a major contribution to clinical diagnosis and surgery.""
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