we know that the quantum well absorption coefficient is calculated by summing over the electron-heavy hole and electron-light hole transitions:(adsbygoogle = window.adsbygoogle || []).push({});

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.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Absorption coefficient of quantum well

Can you offer guidance or do you also need help?

Draft saved
Draft deleted

**Physics Forums | Science Articles, Homework Help, Discussion**