5. Results & Discussion : The optical nonlinearity of DASPB doped PMMA-MA polymer film is studied using open aperture and closed aperture Z-scan techniques by means of low power CW laser at different dye-doping concentrations. The open aperture Z-scan study shows that the dye-doped sample shows a considerable amount of saturable absorption property. But at higher input intensity‚ the two-photon absorption and the reverse saturation absorption properties of the dye in polymer film becomes prominent
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and protractor. Make sure that they line up with the edge of the clear glass cups. The eight step is to shine the three different lasers through each clear glass cup and determine the refractive angles with the three different lasers. The ninth and last step is to record (on a piece of paper) the three different angles of refraction with its corresponding laser wavelengths on a data
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light. A beam of light acts a wave‚ and we are able to use equations so calculate the wavelength of the light used. The diffraction of a straight edge demonstrates that light waves bend around straight edges‚ allowing light to enter an area of shadow. When waves are superposed‚ they reinforce each other when crests are in phase and cancel out when they are not in phase. An image projected by light waves shows this by producing concentric circles of light. When slits are used‚ the laser superposes
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APPLICATIONS OF ORGANIC COMPOUNDS IN LASER TECHNOLOGY WHAT IS AN ORGANIC COMPOUND? An organic compound is any member of a large class of gaseous‚ liquid‚ or solid chemical compounds whose molecules contain carbon. Organic chemistry is the science concerned with all aspects of organic compounds. Organic synthesis is the methodology of their preparation. APPLICATIONS OF ORGANIC COMPOUNDS clothing of cotton‚ wool‚ silk‚ and synthetic fibres; common fuels‚ such as wood‚ coal‚ petroleum‚ and natural
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because it is comprised of the two greek words “holo” and “graphy.” The word “holo” means “whole” and “graphy” means “writing/pictures.” Later‚ with the invention of lasers‚ optical holograms became possible. In 1964‚ at a conference of the Optical Society of America‚ Emmett Leith blew everyone’s minds when he introduced holograms with lasers which made 3D holograms possible. From that moment‚ holograms became commercially available (Schwartz‚ 2006). The recording of holograms is a lot like taking a
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AC 6/6/2012 Item No. 4.76 UNIVERSITY OF MUMBAI Bachelor of Engineering First Year Engineering ( Semester I & II)‚ Revised course (REV‐ 2012) from Academic Year 2012 ‐13‚ (Common for All Branches of Engineering) (As per Credit Based Semester and Grading System with effect from the academic year 2012–2013) First Year Engineering ( Semester I & II)‚ Revised course from Academic Year 2012 ‐13‚ (REV‐ 2012)
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STUDENTS’ INDUSTRIAL WORK EXPERIENCE SCHEME (SIWES) REPORT AT DANGOTE SUGAR REFINERY PLC SHED 20‚ APAPA –WHARF‚ APAPA LAGOS BY ADENIYAN OLUWASEYI ADEDEJI 070406007 PRESENTED TO THE DEPARTMENT OF METALLURGICAL & MATERIALS ENGINEERING UNIVERSITY OF LAGOS JUNE - NOVEMBER 2010 CERTIFICATION This is
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Planning &Maintenance Department Standard Operating Procedure of kiln shell replacement The kiln shell replacement process can be broken down into the following steps: Layout‚ removal‚ installation‚ alignment and welding. 1) Shell layout The layout of the kiln shell to be removed is a critical step as it determines:1) Amount of shell to come out‚ 2) In what sequence and in what sizes. 3) crane capacity 4) Shell section weights and lengths‚ 5) cribbing locations 6) Section staging is taken into
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1. This question is about lasers. (a) With reference to the light waves emitted by a laser‚ state what is meant by the terms (i) monochromatic. ........................................................................................................................... ........................................................................................................................... (1) (ii) coherent. ...............................................................................
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#slide=5 FENLON‚ W. (2012‚ March 30). How Laser Beams Can Trigger and Control Lightning Bolts - Tested. Retrieved February 13‚ 2014‚ from http://www.tested.com/science/earth/43667-how-laser-beams-can-trigger-and-control-lightning-bolts/ Santoso‚ A. (2012‚ March 30). Scientists Can Now Control Lightning Strikes with Laser - Neatorama. Retrieved February 13‚ 2014‚ from http://www.neatorama.com/2012/03/30/scientists-can-now-control-lightning-strikes-with-laser/#!vDPv3 U.S. Severe Weather Map. (n.d.).
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