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This is a very basic overview of what is happening. The laser cavity is filled with gas, most commonly He-Ne. Then a flash lamp acts as the pump that energizes the He-Ne by making the valence electrons of the atoms goes to a higher (less stable) energy orbital. These electrons then de-energize by dropping back down to a lower orbital. This energy change then leads to the emission of a photon of light. Since all the atoms of the gas are doing this at the same time a pulse of light is emitted. This pulse of light is then reflected out of the laser cavity and collimated producing a laser beam.
What else can I help you with?
What are laser rangefinders used for?
A laser rangefinder uses a laser to determine the distance to an object. The principle used is the time of flight principle based on the speed of light.
What is the principle of work of the filter when white light incident on it and laser incident too?
what is principle work of filter when white light incident on it and laser incident too
How does a CD-ROM work?
CD-ROM works on the principle of the LASER and it is a major application of the LASER
What is the principle used in laser?
It would so cool!
Can you give some viva voce question on laser diffraction?
Certainly! Here are a few viva voce questions on laser diffraction: What is the principle behind laser diffraction and how does it differ from traditional diffraction methods? Can you explain the significance of the diffraction pattern produced by a laser and how it relates to particle size analysis? How do factors such as wavelength and particle size influence the diffraction pattern observed in a laser diffraction experiment?
Is dye or semiconductor or gas or excimer laser used in laser printers?
Semiconductor laser
What principle states that we all undergo stress in three stages shock compensation and exhaustion?
The GAS Principle, stands for General Adaptation Syndrome
What does a gas laser need to work?
I belive one type is an argon laser.
What is the role of He gas in He Ne laser?
Helium gas serves as the active medium in a He-Ne laser. It provides population inversion between energy levels, allowing for laser action. The helium gas helps to excited the neon atoms to produce laser light at a wavelength of 632.8 nm.
What is semiconductor laser?
A semiconductor laser is a type of laser which utilizes a semiconductor as its Photon source, rather than a gas (Argon, CO2, Etc...) laser which uses inert gas as an active medium. Many physicists and engineers consider a semiconductor laser a type of "Solid-State" or "Two-State" LASER.
What is the principle behind the use of the refractometer in determining salinity?
it works on the principle of refraction
What is the principle behind chirped pulse amplification and how does it enhance the intensity of ultrafast laser pulses?
Chirped pulse amplification is a technique that involves stretching out a short laser pulse in time before amplifying it, then compressing it back to its original duration. This process allows for higher energy levels to be reached without damaging the amplifying components, resulting in a significant increase in the intensity of ultrafast laser pulses.
