In this post, some conceptual and numerical questions are asked to make your concept clear about the LASER. MCQ LASER PArt-2 Q 1 The output of the He-Ne laser lies in a.) IR spectrum b.) visible spectrum c.) UV spectrum d.) X-ray spectrum […]
MCQ ON LASER Q1. The emission process responsible for producing laser is a)Spontaneous emission b) stimulation emission c.) ultraviolet emission d.) infrared emission Q2. For laser action to occur, the medium must have at least a.) Four energy levels b.) two energy levels c.) […]
To determine the He-Ne gas LASER wavelength we use grating element. Which have 15000 lines per inch or it may very from laboratory to the laboratory. Diffraction Grating Experiment Quiz, it will help you to make your concept more clear about the experiment. Experiment means […]
Semiconductor diode laser quiz. There are 13 questions that will help you to check your learning about the diode laser and its working. Please let me know if any question has left or you can suggest me some more questions. It will help you. QUIZ […]
Introduction to Semiconductor LASER In this video tutorial of semiconductor LASER the following points which given below are explained. The GaAs is responsible for the optical properties when electron and holes recombines in depletion region. As you know in Si/Ge semiconductor material when this recombination […]
Six Major Misconceptions in LASER what Student Thinks about some physical concepts? Like what is ground and excited state of the students? They just explain only about energy not reason how? Also like when atom absorbs the energy it goes in to the excited state, […]
Principle, Construction, and Working of He- Ne Gas LASER The He -Ne Gas Laser was the first continuous laser. It was invented by Javan, Bennett and Harriot in 1961. The laser has three components Laser medium: it is in the form of He-Ne gas mixture […]
Carbon dioxide (CO2) gas Laser The carbon dioxide laser (CO2 laser) was one of the earliest gas lasers invented by Kumar Patel of Bell Labs in 1964, is one of the most useful. Carbon dioxide gas lasers are the highest-power continuous wave lasers that are […]
I start this topic with the concept of absorption and emission first of all where one uses the Atomic Excitation or Electronic Excitation. What do you think when a photon strike on the electron? Does this result give of transfer of electron in a higher […]