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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ability to construct meaning from visual images. It’s not a skill. It uses skill as a tool box. It’s a form of critical thinking that enhances your intellectual capacity.” 90% of the information we take in from the world is received by our eyes. The optic nerve has 1 million nerve fibres and 30% of it is for visual processing‚ 3% for hearing and 8% for touch. Visual Literacy enables people to interpret content of visual images‚ examine the impact of social images‚ discuss their purpose‚ the audience
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Blake’s optics in demeanor of cathedral’s codified religion and his mystification of God and religion. “I am in God’s presence night and day And he never turns his face away.” William Blake I am perplexed by the lines as if it has some magnetic gusto to realize belief and his spiritual world. We can easily figure out William Blake ’s artistic accomplishment in scrutiny of the spiritual world of human experience which is also the cardinal theme as
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References: [1] Govind P. Agrawal‚ “Fiber-optic communication systems”‚ Third edition‚ 2002 [2] Govind P. Agrawal‚ “Nonlinear fiber optics”‚ Second edition‚ 1995 [3] Chidambaram Pavanasam‚ “Vestigial Side Band Demultiplexing for High Spectral Efficiency WDM systems”‚ Master thesis submitted to the Department of Electrical Engineering at the
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CHAPTER 5: LIGHT In each of the following sentences‚ fill in the bracket the appropriate word or words given below. solid‚ liquid‚ gas‚ vacuum‚ electromagnetic wave‚ energy 1. Light is a form of ( ). 2. It travels in the form of ( ) 3. In can travel through ( ) 4. It travels fastest in the medium of ( ) 5. Light of different colours
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Andrea Cash Unit 8. Exercise 1. Mechanical Splice of Fiber Optic Cable To prepare for mechanical splicing‚ make sure you have a clean‚ dry‚ and well lit work area. Do all your work over a fiber- optic mat and place any scrap optical fibers in their proper container. Before you begin splicing the fiber you want to make sure you have the following tools ready; Mechanical splice assembly tool‚ mechanical splice‚ buffer and coating removal tool‚ optical fiber cleaning fluid‚ lint- free wipes‚ and
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glaucoma. The most common type of glaucoma is the open-angle type. Open-angle glaucoma (also known as primary open-angle and wide-angle glaucoma) is a type where there is fluid blockage in the eye and pressure builds up in the eye causing damage to the optic nerve. Closed-angle glaucoma is a much more serious situation. Closed angle occurs when fluid is blocked from draining out of the eye causing pressure to build in the front of the eye. This can be extremely painful and requires immediate medical treatment
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Introduction England Optical Group (EOG) has established their first outlet in Malaysia at 1979. Today‚ it is Malaysia’s largest optical chain store‚ with more than 600 staff and having outlets in China‚ Cambodia and Singapore under the brand name of E-OPTICS totaling of 150 outlets (EOG‚ 2008). EOG expand their business through England Optical Group’s Franchise Venture Capital Fund (FVCF). 1.1 Company Analysis England Optical Group (EOG) is the largest optical chain store certified by the Malaysia
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Visual Fields in Glaucoma Evaluation of the field of vision is the mainstay of the diagnosis and management of glaucoma. The use of manual perimetry for defining glaucomatous defects is an art that is highly dependent on the perimetrist’s skill. With the advent of computers and automation‚ perimetry has changed from an art to a more quantitative science. Understanding glaucomatous abnormalities detected with both manual and automated techniques requires a thorough understanding of the
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examination. Positive red reflexes were noted to both eyes. The fundus in both eyes appear light yellow‚ with no evidence of hemorrhage and Drusen bodies. Both the optic discs have well-defined or sharp margins and are round. The macula is a disc and a half away from the optic disc in the right eye‚ and is two discs away from the optic disc in the left
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