Core sub phy_att_15laser

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Core sub phy_att_15laser

  1. 1. Do you like this show?YES.Can you know aboutthis rays?YES,We know aboutlaser rays.
  2. 2. LASERTO DAY WE ARE DISCUSSINGABOUT LASER RAYS.THESE RAYS ARE USED INMANY AREAS, LIKEINDUSTRIAL,SCIENCE&TECHNOLOGY,MEDICINE,DEFENCE AND SPACE SCIENCEECT.
  3. 3. 1.INTRODUCTION.2.ABBREVATION OFLASER.3.TYPES OF LASER.4.APPLICATIONS OFLASERS.
  4. 4. The basic scientific principlebehind a laser was first put forwardby DR. charles H.townes in 1954.The efforts of several scientistslaser led to the development of thefirst laser called pulsed laser in1960.
  5. 5. VARIOUS TYPES OF LASERS ARE NOW INOPERATION WHICH CAN BE BROADLYCLASSIFIED INTO:
  6. 6. SOLID STATE LASERS EX: RUBY LASERLIQUID AND DYE LASERSGASEOUS LASERS EX:HE-NE LASER
  7. 7. 1.LASERS HELPED IN UNDERSTANDING AND OFFERINGCLARIFICATIONS FOR MANY BASIC PROBLEMS OFSCIENCE AND TECHNOLOGY2.WITH THE HELP OF HE-NE LASER,IT WAS PROVEDTHAT THE VELOCITY OF LIGHT IS SOME IN ALLDIRECTIONS.3.IN ASTRONOMY, LASERS HELPED IN EXTENDING THEDISTANCE OF OBSERVATION OF STELLAR OBJECTS ANDSTUDY THEIR NATURE.
  8. 8. THE COUNTING OF ATOMS IN A SUBSTANCE BECAME POSSIBLE BECAUSE OF LASER.IN COMPUTERS, LASERSARE USED TO RETRIEVESTORED INFORMATIONFORM A COMPACTDISC(CD)
  9. 9. LASERS ARE USED IN FIBRE-OPTIC ENDOSCOPETO DETECT ULCERS IN THE INTESTINES.LASERS ARE USED FORBLOODLESS SURGERY.
  10. 10. Lasers are used extensively in the treatment of eye- diseases,particularly to reattach a detached retina.The liver and lungdiseases could be treatedby lasers.
  11. 11. LASERS ARE USED NOW FORCUTTING, DRILLING ANDWELDING OF METALS ANDOTHER MATERIALS. LASER LIGHT IS USED TO COLLECT THE INFORMATION ABOUT THE PREFIXED PRICES OF VARIOUS PRODUCTS IN SHOPS AND BUSINESS ESTABLISHMENTS FROM THE BAR-CODE PRINTED ON THE PRODUCT.
  12. 12. LASER ARE USED IN SPACECOMMUNICATION, IN RADARS AND INSATELLITES.
  13. 13. LASERS ARE USED IN VARIOUS GUIDEDMISSILES AND ALSO FOR DETECTION OFENEMY TARGETS.
  14. 14. NOWADAYS, A STUDENT CAN FLY A PLANE WITH THEHELP OF LASER RAYS. MAN HAS INVENTED TO FLY APLANE WITHOUT USING ANY FUAL. LASER IS USEFUL TO MANKIND IN MANYWAYS. IN FUTURE, MANY UNBELIEVABLE THINGSARE GOING TO HAPPEN WITH THE USE OF LASERRAYS.

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