Hello Friends in this article i am gone to share Confined Photons Quiz Answers with you. | Nanophotonics and Detectors
Confined Photons Quiz Answers
Question 1)
Spontaneous emission is an intrinsic property of an atom.
- True
- False
Question 2)
Why is photon density of modes different for 2D, 1D and 0D structures?
- Number of allowed states as a function of energy is a function of confinement
- Photons have more energy with increasing confinement
- Dispersion relation changes as a function of confinement
- None of the above
Question 3)
What is the definition of β, the spontaneous emission enhancement factor?
- Enhancement of spontaneous emission by laser cavity
- Fraction of emission that ends up as spontaneous emission
- Fraction of total spontaneous emission that is coupled into lasing cavity mode
- None of the above
Question 4)
A thresholdless laser does not have a threshold.
- True
- False
Question 5)
Why are whispering gallery mode lasers attractive?
- Small mode volume
- Low threshold
- Nonlinear effects can be enhanced with high intensities
- All of the above
Question 6)
What are main differences between photonic crystals and crystalline semiconductors in respect to calculating bandstructure for photons and electrons/holes respectively?
- Different occupation probabilities for electron/holes and photons
- Photons do not have mass whereas electrons do
- Cannot achieve bandgaps with photonic crystals
- (a) and (b) are correct