- #1
equation M
- 6
- 0
we know that the quantum well absorption coefficient is calculated by summing over the electron-heavy hole and electron-light hole transitions:
α[itex]_{w}[/itex](E) = [itex]\sum_{n}α[/itex][itex]_{e_{n}-hh_{n}}[/itex](E) + [itex]\sum_{n}α[/itex][itex]_{e_{n}-lh_{n}}[/itex](E)
where n is the n[itex]^{th}[/itex] transistion.
but when the photon flux is incident on the QW, the absorption spectrum becomes continuous rather than discrete as all the photons above a certain level of energy will be absorbed in the well. Am I right?
please help me ... i am novice in this field.
α[itex]_{w}[/itex](E) = [itex]\sum_{n}α[/itex][itex]_{e_{n}-hh_{n}}[/itex](E) + [itex]\sum_{n}α[/itex][itex]_{e_{n}-lh_{n}}[/itex](E)
where n is the n[itex]^{th}[/itex] transistion.
but when the photon flux is incident on the QW, the absorption spectrum becomes continuous rather than discrete as all the photons above a certain level of energy will be absorbed in the well. Am I right?
please help me ... i am novice in this field.