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JudySpontaneous emission is incoherent because the emitted photons have random phases and do not possess a fixed relationship with each other in terms of direction or wavelength. This randomness results in a lack of correlation between the emitted photons, making them incoherent.
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Why the spontaneous radiation incoherent?
Spontaneous radiation is incoherent because it occurs randomly with no fixed phase relationship between emitted photons. This randomness results in a broad range of frequencies and directions for the emitted radiation, making it incoherent.
What is the difference between spontaneous and stimulated emission of light?
In spontaneous emission, photons are emitted randomly and independently of other photons. In stimulated emission, photons are emitted in response to an incoming photon, which triggers the emission of additional photons that have the same frequency, phase, and direction. Stimulated emission is the process that underlies the operation of lasers.
What is the difference between spontaneous emission and stimulated emission?
stimulated emission causes due to the energy difference between the higher and lower energy level state, but it doesn't depends in the case of spontaneous emission . spontaneous emission causes without any stimulation .In stimulated emission energy transfer is twice the energy transfer of spontaneous emission.
How spontaneous emission occurs in case of lasers?
Spontaneous emission in lasers occurs when excited atoms or molecules in the lasing medium release energy in the form of photons. These photons have random phases and directions, which do not contribute to laser amplification. To achieve laser operation, the spontaneous emission needs to be amplified and synchronized through a process known as stimulated emission.
Difference between stimulated and spontaneous emission?
Stimulated emission occurs when an already excited atom is triggered by an external photon to release a second identical photon. Spontaneous emission, on the other hand, happens when an excited atom releases a photon without any external stimulation.
