From Quantity to Quality: Redefining Institutional Approaches to Research Publication
Sushil K
MCQ LASER Section b-2022
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 Q2 The first step to getting output from a laser ...
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MCQ on LASER-Section-A2022
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.) three energy levels d.) none of above Q3. Ordinary ...
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Diffraction Grating Experiment Quiz
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 not taking the reading and calculations or complete the practical ...
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Semiconductor Diode Laser Experiment Quiz
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 READ ALSO: Total Internal reflection Quiz
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Semiconductor LASER Construction and Working
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 take place heat produces and at high current the components ...
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Six Major Misconceptions in LASER what Student Thinks ?
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, they thinks that atom shifted from one position to the ...
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He-Ne gas Laser: Its Principle, Construction and Working
Introduction He-Ne LASER The Helium-Neon laser was the first continuous laser. It was invented by Javan et. al. in 1961. But how did Javan manage to do this? This shows that it is no coincidence that Javan’s first He-Ne laser oscillated at a Wavelength of 1.5 μm since the amplification at this wavelength is considerably ...
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Carbon dioxide (CO2) gas Laser
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 currently available. They are also quite efficient: the ratio of ...
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LASER: ATOMIC TRANSITION OR ELECTRONIC TRANSITION
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 energy state that is represented by either electronic transition (ET) ...
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