RP Photonics

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The Photonics Quiz

Test yourself by solving a set of questions concerning laser technology, optical fibers, and nonlinear optics! The following questions are mostly solvable by using the Encyclopedia of Laser Physics and Technology. Note that in some cases more than one answer is correct.

Question 27

The zero-point fluctuations (vacuum fluctuations) of the electromagnetic field

(a) are associated with a certain small density of photons (one photon per mode), which cannot be further reduced because quantum mechanics predicts some balance of absorption and emission processes for any absorber material

(b) are occurring when no photons at all are present

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