variables are the wavelength‚ the glass rectangle‚ lasers‚ angle of incidence and angle of refraction‚ protractor and the distance between the laser and the glass rectangle (beam divergence). My independent variable is the wavelength which I am going to control. My dependent variable is the angle of refraction and angle of incidence. My controlled variable is‚ the glass rectangle‚ the protractor and the lasers‚ also the distance between the laser and the glass rectangle (because of the beam divergence)
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Making a Laser Beam Security Alarm Circuit Posted by Swagatam Majumdar We have often seen laser alarm system as an integral part of security solution especially for a location which deserves hi-level security. Right from a museum preserving priceless historical possession; to a safety bank vault; and even in thriller flicks where the protagonist is seen on and often tied in the ray of red light beams‚ while trying to reach a safe vault; one is well acquainted with the usage of laser light beams
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Introduction Laser scanning is a lot like photography. A 3D scanner is a device that analyzes a real-world object or environment to collect data on its shape and possibly its appearance for example colour. The collected data can then be used to construct digital‚ three dimensional (3D) models useful for a wide variety of applications. While a camera collects colour information about surfaces within its field of view‚ 3D scanners collect distance information about surfaces within its field of view
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products including televisions‚ DVD players and other domestic appliances. LEDs are also used in seven-segment display. A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The term "laser" originated as an acronym for Light Amplification by Stimulated Emission of Radiation. Lasers
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. CHAPTER-1 INTRODUCTION Free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to transmit data for telecommunications orcomputer networking. "Free space" means air‚ outer space‚ vacuum‚ or something similar. This contrasts with using solids such as optical fiber cable or an optical transmission line. The technology is useful where the physical connections are impractical due to high costs or other considerations. Free-space
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Science and Technology Laser Physics and Non-linear Optics Enschede‚ July 11‚ 2006 Graduation Committee: Prof. Dr. K.J. Boller Dr. Ir. F.A. van Goor Prof. Dr. M. Pollnau Dr. H.J.W.M. Hoekstra Summary Research on acceleration of electrons by plasma waves will be performed at the laser physics and non-linear optics group of the University of Twente to develop a new compact method for acceleration of electrons. This method of electron acceleration requires an intense ultrashort laser pulse to induce a
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the laser light; to transmit different signals ranging from 2.5Gbps to 40Gbps. The device that connects the signals together is a multiplexor‚ and the one that splits them apart on the other end is called a demultiplexer. The theory behind WDM is that it allows you to transmit and receive information through different optical channels which is called WDM. This includes wavelength division multiplexing and frequency division multiplexing. Wavelength is essentially the colour of the laser being
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capable of up to 2.5 Gbps of data‚ voice and video communications through the air‚ allowing optical connectivity without requiring fiber-optic cable or securing spectrum licenses. So we can use LED’s or Laser for transmission data. Free Space Optics (FSO) technology is relatively simple. It’s built on a laser transmitter and a receiver to provide full duplex capability. Each FSO unit uses a high-power optical source‚ a lens that transmits light through the atmosphere to another lens receiving the information
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Abstract The military/aerospace platform operational environment challenges the creativity of fiber optic module packaging engineers as they endeavor to develop and mature new active and passive single-mode fiber optic and photonic components for next generation avionics networking applications. Low sales and manufacturing volumes inherent to avionics combined with lack of standard interface specifications for current and next generation fiber optic local area network architectures and sub-systems
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are struck at an angle of 45o by a pulsed and focused laser beam the substrates are attached with the surface parallel to the target surface at a target-to-substrate distance of typically 2-10 cm Laser ablation of the target Process (4 stages) material and creation of a plasma Dynamic of the plasma Deposition of the ablation material on the substrate Nucleation and growth of the film on the substrate surface 1. Laser ablation of the target material and creation of a plasma
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