Applications of Laser Application 1 : Defense A Laser Range Finder is an example of an application in the defense system of a country. To knock down an enemy tank‚ it is necessary to range it very accurately. Because of its high intensity and very low divergence even after travelling quite a few kilometers‚ laser is ideally suited for this purpose. The laser range finders using neodymium and carbon dioxide lasers have become a standard item for artillery and tanks. These laser range
Premium Laser
CIVIL APPLICATION OF LASER RANGE FINDER Synopsis: [laser is a device that emits light (electromagnetic radiation) through a process of optical amplification based on the stimulated emission of photons . Many scientific‚ military‚ medical and commercial laser applications have been developed since the invention of the laser ‚ one of these application is laser rangefinder ‚ which is a device that uses a laser beam to determine the distance to an object. The most common form of laser rangefinder operates
Premium Laser
A REPORT ON LASER 1 Techno India College of Technology Megacity‚Rajarhat Kolkata 700156 A Report on LASER TECHNOLOGY By ZAKIR UDDIN AHMAD Student B.Tech 3rd year Applied Electronics and Instrumentation Engineering 2012 2 Abstract The word laser is an acronym that stands for "light amplification by stimulated emission of radiation." In a fairly unsophisticated sense‚ a laser is nothing more than a special flashlight. Energy goes in‚ usually in the form of electricity‚ and light comes out
Premium Laser
Efectul laser Laserul este un dispozitiv optic care generează un fascicul coerent de lumină. Fasciculele laser au mai multe proprietăți care le diferențiază de lumina incoerentă produsă de exemplu de Soare sau de becul cu incandescență: * monocromaticitate — un spectru în general foarte îngust de lungimi de undă; * direcționalitate — proprietatea de a se propaga pe distanțe mari cu o divergență foarte mică și‚ ca urmare‚ capacitatea de a fi focalizate pe o arie foarte mică; * intensitate
Premium
CHAPTER 13 SEMICONDUCTOR LASERS Pamela L. Derry Luis Figueroa Chi-Shain Hong Boeing Defense & Space Group Seattle ‚ Washington 13.1 GLOSSARY A C c D Dc D d deff dG dg / dN E Ec Eg En E cn En E e Fc F fc fd fo fp Constant approximating the slope of gain versus current or carrier density Capacitance Speed of light Density of states for a transition Density of states for the conduction band Density of states for the valence band Active layer thickness Effective beam width in the transverse direction
Premium Laser
LASER TECHNOLOGY: ITS APPLICATIONS A Research Paper Presented To In Partial Fulfillment Of the Requirements for English 2 (Writing in the Discipline) SY 2012-2013 INTRODUCTION Background Information of the Study In our world today‚ there is no such thing that could not be touched by technology. Even a single device can be beneficial and maybe unbeneficial to us humans. Since then‚ lasers are part of our new era of technology. Even the first laser was recognized
Premium Laser
Light Amplification by Stimulated Emission of Radiation LASERS Laser Fundamentals • A laser is a device that generates light by a process called STIMULATED EMISSION. • The acronym LASER stands for Light Amplification by Stimulated Emission of Radiation. • The light emitted from a laser is monochromatic. • Laser emit light that is highly directional. • The light from a laser is said to be coherent. Laser Operation: Excited State Energy Introduction Metastable State Spontaneous Energy
Premium Laser Photon Atom
Sagar Institute of Science & Technology‚ Bhopal Department of Electronics and Communication Major Project On Laser based security system STUDENT’S BY Under the guidance of Satyendra Choudhary Mrs. Deepa Gyanchandani 0187EC101095 Nikhil Solanki 0187EC101066 Contents Introduction Objective Methodology Block Diagram
Premium Infrared
Laser dentistry is a relatively new form of dental care. Laser Dentistry uses lasers to perform surgery‚ prepare cavities‚ and harden dental resins. This use of lasers has allowed dentists to perform tasks with less pain and with improved results. There are many different types of lasers used in the dentistry field. Theses lasers included the argon laser‚ the diode laser‚ the neodymium: yttrium aluminum garnet (Nd:YAG) laser‚ the holmium: yttrium aluminum garnet (Ho:YAG) laser‚ the erbium: yttrium
Premium Laser
The ruby laser‚ first invented in 1960‚ was the world’s first laser. Created by Theodore Maiman‚ the ruby laser is composed of aluminium oxide where some of the aluminium ions have been replaced with chromium ions. These chromium ions are what gives the ruby laser its red color. Its gain medium is a cylindrical crystal. A fully reflecting mirror and a partially reflecting mirror are placed at both ends of the cylindrical crystal. A high intensity lamp is spiraled around the cylinder to produce a
Premium Laser Light Atom