Thursday, 3 January 2013

What is Laser?

The term laser should not sound alien to you. We often encounter laser in our daily life, examples include the laser pointer used in classrooms, and the CD-ROMs in a computer or in a hi-fi that are used to read the data stored in a CD. In industry, laser is often used for cutting and microscopic processing. For military purposes, laser is used to intercept guided missiles. Scientists have also accurately measured the distance between the Earth and the Moon by using laser; the error involved is only a few centimeters. These are some extensive applications of laser. So actually how is it produced? We will explain the basic principles of laser below. For more details click here.

Credit: http://www.hk-phy.org

No comments:

Post a Comment

Thank you for writing to "Chemical Science"

Message from Bhagavath Geetha
  • Do not get over excited over happiness and do not get over depressed over sorrow.
  • Do not get over bonded with anyone and anybody because it can lead to problems and sorrow.
  • Never think that my duty is the topmost or lowermost. Every duty is respectful. The responsibility undertaken or given as per the position is the noblest duty.
  • Elevate yourselves, family, society and nation and never denigrate yourselves, family, society and nation.
  • We are our own closest relatives and if not properly utilised we will become our closest enemies.
  • There are possibilities of success and failure in any endeavour. One cannot assure success always.
  • Death is inevitable for everyone in this world. In any endeavour at the maximum an individual may die.
  • People may say good and also they may say bad. Approach them with stabilised mind.
  • Take anything after scientifically, logically and rationally analysing them.
  • Perform your duty, responsibility and accept the privileges eligible for you.
  • First change ourselves and then try to change others.
  • We are all instruments /tools in the hands of the nature for performing the duty. So do not think that I am doing the duty. Think that I am an instrument to do the duty.
  • Results of action may not be sweet always. Accept what ever may be the result.
  • Follow the path of great scholars who guided the world. Listen their messages.
  • Results and rewards will come and go but stick to your duty with devotion, dedication and sincerity.