Laser Parameters and Systems Overview Quiz

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In laser action, what occurs after photons are emitted?

Creation of new energy states

Formation of valence bands

Absorption of electrons

System transition between two energy states (correct)

What occurs in semiconductor lasers involving the conduction and valence bands?

Formation of new semiconductor materials

Two states are electronic states in an atom or ion (correct)

Transition between two valence bands

Vibrational modes of molecules

What is the term for the emission of photons when an electron spontaneously decays from a higher to a lower energy state?

Spontaneous emission (correct)

Stimulated emission

Conduction emission

Valence emission

Which process results in two photons of the same energy and in phase?

Stimulated emission Signup and view all the answers

What effect does stimulated emission have on the polarization of the emitted photons?

Same polarization Signup and view all the answers

What is the result when a photon stimulates an electron to transfer between two energy states?

Emission of another photon Signup and view all the answers

What is the main difference between continuous wave (CW) lasers and pulsed lasers?

Pulsed lasers achieve higher pulse energy than CW lasers Signup and view all the answers

Who was responsible for demonstrating the first dye LASER action at IBM Labs in 1966?

Peter Sorokin Signup and view all the answers

What was significant about the LASER system developed in 2010 at Lawrence Livermore National Labs?

It was the first 10 Petawatt LASER system developed Signup and view all the answers

Which LASER system operates at ELI-NP Magurele with a power of 10 Petawatt?

Solid State LASER Signup and view all the answers

In what year was the first titanium sapphire LASER developed at MIT Lincoln Labs?

1982 Signup and view all the answers

Why are pulsed operation lasers usually preferred to achieve higher pulse energy?

To achieve higher pulse energy Signup and view all the answers

Which type of laser is divided based on the lasing material/medium?

Liquid and Dye Laser Signup and view all the answers

What is the typical wavelength range for Helium-neon lasers?

Microwatts to tens of milliwatts Signup and view all the answers

Which laser type is noted for having Nd: YAG as one of its examples?

Solid State Laser Signup and view all the answers

What process is laser action based on that involves the population inversion?

The population inversion process Signup and view all the answers

Which material is commonly used in Semiconductor/Diode Lasers?

GaAs Signup and view all the answers

In terms of average power range, which laser type operates in the milliwatts to a hundred watts range?

Gas Laser Signup and view all the answers