optical polymers at AlliedSignal in Morristown‚ NJ. His work involves the design‚ fabrication‚ and characterization of high-performance optical interconnect devices and circuits in polymeric materials Dr Eldada is a member of the Lasers and Electro-Optics Society and the Optical Society of America. Robert Scarmozzino was born in
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to keep out stray light. The light is then reflected off a concave mirror composed of “ultra-low expansion glass” that is constantly kept at room temperature. The mirror was ground to have reflecting surfaces of the precise shape (“Hubble’s Amazing Optics”). The Hubble Space Telescope has a focal length of 189 feet (Elert). In 1993 the Hubble Telescope was surpassed by the Keck Observatory Telescopes located in Mauna Kea‚ Hawaii (Moseman). The twin telescopes both hold a 33-foot in diameter mirror
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Influences of Fiber Optics Introduction: People have been trying to improve communications over the centuries. Communication plays a very important role in everyday life. The advancement of the world mostly depends on how we share the information with the rest of the world. Fiber optics is making this task easier and quicker. It is currently the fastest internet technology. Fiber optic is a technology of transmitting light through very thin flexible glass or plastic fibers. It is one of the fastest
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Fiber optic communication ABSTRACT FIBRE-OPTICS COMMUNICATION Most reference materials that discuss the historical perspective mention about Indian smoke signals. None of these primitive systems was secure due to the spreading of the unguided light. Ideally‚ a communication system should be secure and should not require installation of a cumbersome physical media. Fiber optics satisfied these desires‚ and as early as 1958‚ fiber-optic equipment was being focused for use in the factory. The fiber-optic
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attempts of Wong’s team to launch new product crushed. First of all‚ it can be because of false assumptions (“dangerous assumptions”) that were made by team. That’s why we can conclude that level of uncertainty for new security screeen is rather high and Optic System doesn’t see all opportunities and threats. There is no relevant marketing research for new product. Two main advantages that were found by Noirjean are not sufficient to beat competitors. So‚ it can be that two risks “Existing Competition” and
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Chapter 14 Outline I. Refraction of Light A. Refraction is the bending of light at the boundary of two media. 1. It is caused by differences in the way light travels in the two media a) Light changes speed unequally. (1) One side of the light becomes slower/faster 2. If light is perpendicular to the new medium‚ light will not refract a) If the media have the same index of refraction‚ light will not refract B. Index of Refraction 1. How well light travels through a medium is measured by
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Refraction of light in water Refraction is the change in direction of a wave due to a change in its transmission medium. Due to change of medium‚ the phase velocity of the wave is changed but its frequency remains constant. This is most commonly observed when a wave passes from one medium to another at any angle other than 90° or 0°. Refraction of light is the most commonly observed phenomenon‚ When light travels from air into water‚ it slows down‚ causing it to change direction slightly. This
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Telescopes A telescope is an instrument that aids in the observation of remote objects by collecting electromagnetic radiation such as visible light. The first known practical telescopes were invented in the Netherlands at the beginning of the 17th century‚ using glass lenses. They found use in terrestrial applications and astronomy. Telescopes come in all shapes and sizes‚ from a little plastic tube you buy at a toy store for $2‚ to the the Hubble telescope which weighs several tons. Amateur telescopes
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HISTORY OF FIBER OPTICS * In 1840‚ Daniel Colladon and Jacques Babinet demonstrated the principle of guiding light by refraction. * It was followed by a public demonstration by John Tyndal in 1852. In 1870‚ Tyndal wrote about the property of total internal reflection in his book about the nature of light. * In 1880‚ Alexander Graham Bell and Sumner Tainter invented the Photophone‚ a device capable of transmitting sound waves over beam of light. This is considered as mankind’s first attempt
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describe effects unlike what geometrical optics would predict: the edges of shadows are not quite sharp; the beam passed by a slit is not a narrow rectangle. Diffraction patterns carry information about the spacing and location of the elements in the diffraction grating that produced them. Conversely‚ if we know the structure of the grating‚ we can deduce properties about the incident light‚ in particular its wavelength. This will be our task‚ in this first optics lab exercise. The analysis of diffraction
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