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Light Tree.pdf - 123SeminarsOnly.com
Light Tree.pdf - 123SeminarsOnly.com

... wavelength-routing switch (WRS) may be routed from an output fiber without undergoing optoelectronic conversion. A light path is an all-optical channel, which may be used to carry circuit switched traffic, and it may span multiple fiber links. Assigning a particular wavelength to it sets these up. I ...
Optical Molasses
Optical Molasses

... Take out atoms that are still too hot or energetic from the magnetic field ...
ELEG 640/440 Homework 3
ELEG 640/440 Homework 3

... A step-index, multimode optical fiber has a core index of refraction of 1.47 and a cladding index of 1.46. The core diameter is 30 μm. If lightwaves are coupled with their ray making an angle of 18.7 degrees with the z axis (direction of propagation) of the fiber, will they be accepted into a guided ...
Pinhole lab 2
Pinhole lab 2

... 20 Physics ...
Waves & Oscillations Physics 42200 Spring 2015 Semester Lecture 28 – Geometric Optics
Waves & Oscillations Physics 42200 Spring 2015 Semester Lecture 28 – Geometric Optics

Building The optimal optical guitar
Building The optimal optical guitar

Measurement of the 4Pi-confocal point spread function proves 75
Measurement of the 4Pi-confocal point spread function proves 75

Fundamentals of Linear Electronics Integrated & Discrete
Fundamentals of Linear Electronics Integrated & Discrete

... Light causes E-H pairs, which produce base current. ...
Waves & Oscillations Physics 42200 Spring 2014 Semester Lecture 39 – Review
Waves & Oscillations Physics 42200 Spring 2014 Semester Lecture 39 – Review

7.13 Experimental Microbial Genetics
7.13 Experimental Microbial Genetics

... Cleaning the lenses The optical cleanliness of the microscope lenses must be scrupulously maintained to obtain clear, high contrast images. If the image appears blurred, low contrast, or spotty, then the system is dirty. Furthermore, dirt on the surfaces of lenses is a sure-fire method to scratch th ...
Ingen lysbildetittel - Department of Telematics
Ingen lysbildetittel - Department of Telematics

... polarisation, time bin or space State of a qubit is fully described as a sum of vector elements: a|H> + b|V>, with a2 + b2 = 1 State changed though phase shifts or by switching in space. Linear optical elements can be used without major problems (determinsitic), but loss and noise will destroy the s ...
Microscope
Microscope

... that is projected upward into the slide. There is no set rule regarding which setting to use for a particular power. Rather, the setting is a function of the transparency of the specimen, the degree of contrastdiaphragm you desire and the particular objective lens in use. ...
startest
startest

... The careful visual examination of the image of a point source formed by a lens being evaluated is one of the most basic and important tests that can be performed. The interpretation of the image in terms of aberrations is to a large degree a matter of experience, and the visual examination of a poin ...
OPTICAL FIBER WAVEGUIDE
OPTICAL FIBER WAVEGUIDE

Images in Lenses
Images in Lenses

... students understand each part, as various incident rays behave differently in other parts of the illustration. Ask students questions such as, Is this incident ray parallel or angled? Where is the light source now? What happens when it emerges and why? • As you work through the illustrations with st ...
Daily Quizzes for Laser Technology
Daily Quizzes for Laser Technology

The Fresnel Biprism
The Fresnel Biprism

... points showing the imaginary sources could be seen on the screen. The distance between the imaginary sources was found to be a = 0.06 ± 0.02cm. There is no real way to compare this answer to a reference source as each optical system tends to be different in one way or another however this number was ...
Ch14 Review
Ch14 Review

...  Light is electromagnetic radiation that consists of oscillating electric and magnetic fields with different wavelengths.  The relationship between the frequency, wavelength, and speed of electromagnetic radiation is given by the equation: c=fλ  The brightness of light is inversely proportional t ...
Glossary
Glossary

... CMYK…An abbreviation for the cyan, magenta, yellow and black color space. They are the “subtractive” colors used in a four color printing process. They can also be used in computer files of photos or drawings. Color Temperature…An objective description of the color of a light source...expressed as t ...
1 PHYS:1200 LECTURE 31 — LIGHT AND OPTICS (3) In lecture 30
1 PHYS:1200 LECTURE 31 — LIGHT AND OPTICS (3) In lecture 30

... plane and curved mirrors. In this lecture we will use the law of refraction to describe how images  are formed by lenses – curved pieces of glass or transparent plastic. The law of refraction allows  us to determine how a light ray is bent when it travels from air into glass or clear plastic. We wil ...
Linking Asteroids and Meteorites through Reflectance Spectroscopy
Linking Asteroids and Meteorites through Reflectance Spectroscopy

... All large modern telescopes are reflectors • Since light passes through the lens of a refracting telescope, • You need to make the lens from clear, highquality glass with precisely shaped surfaces • It is easier to make a high-quality mirror than a ...
Edge-enhanced imaging with polyvinyl alcohol/acrylamide photopolymer gratings 1510
Edge-enhanced imaging with polyvinyl alcohol/acrylamide photopolymer gratings 1510

... laser beam. We see that the Bragg angle is 20.8± with a diffraction efficiency of 93%, close to the theoretical maximum of 100%. Circles represent experimental measurements, whereas the continuous curve corresponds to the theoretical f it from Kogelnik’s theory with values n0 苷 1.50, Dn 苷 0.003, d 苷 ...
Micro Systems Design GmbH presents - LAS-CAD
Micro Systems Design GmbH presents - LAS-CAD

... Stress ...
Document
Document

... 1. Light must pass from a more optically dense to less optically dense medium. 2. There are only specific angles of incidence, called the critical angle, which is different for each medium. ...
Coherent Optical Information Systems
Coherent Optical Information Systems

< 1 ... 184 185 186 187 188 189 190 191 192 ... 212 >

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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